<TABLE cellSpacing=1 cellPadding=6 width="100%" border=0><TBODY><TR><TD colSpan=2><TABLE width="100%" border=0><TBODY><TR><TD style="PADDING-TOP: 4px" vAlign=top colSpan=2>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Alfa 164 gear ratios...here you go Phil....<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 17 2001 at 6:38 PM[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "s";n54_em = n54_em + "h";n54_em = n54_em + "u";n54_em = n54_em + "t";n54_em = n54_em + "t";n54_em = n54_em + "e";n54_em = n54_em + "r";n54_em = n54_em + "_";n54_em = n54_em + "b";n54_em = n54_em + "u";n54_em = n54_em + "g";n54_em = n54_em + "_";n54_em = n54_em + "1";n54_em = n54_em + "@";n54_em = n54_em + "h";n54_em = n54_em + "o";n54_em = n54_em + "t";n54_em = n54_em + "m";n54_em = n54_em + "a";n54_em = n54_em + "i";n54_em = n54_em + "l";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + "m"; document.write("Carl"); // --> </SCRIPT>Carl <NOSCRIPT> Carl </NOSCRIPT> [/FONT]</TD></TR><TR><TD vAlign=bottom colSpan=3><HR></TD></TR><TR><TD colSpan=3>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->http://www.digest.net/alfa/FAQ/164/pb94/pb94-1.htm
Gear box ratios are at the end of this...
For all wondering, this is for a previous thread talking about a Alfa V6 in a X.
Other notes
15" wheels front, 16" rear, 195/45/15 ans 225/45/16
Custom exhaust, looks like a single tip, non cat exhaust. 5 speed, no Bumpers, and a big wing on the back. Any more info needed let me know...<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top noWrap align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Author[/FONT]</TD><TD>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Reply[/FONT]</TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Phil[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->and the results. (Alfa V6 powered X1/9)..........<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 17 2001, 8:30 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Using those ratios, 220bhp, supplied rear tyre size, standard X drag coefficent, I got these results....
0-30 1.4
0-50 3.6
0-60 4.5
0-80 7.8
0-100 12.3
1/4 mile = 13.4 seconds, 104.6 mph using optimal launch method of clutch dump at 1700rpm.
Max speeds (@7100rpm) =
1st 35mph
2nd 62
3rd 89
4th 118
5th 149.
Now, for someone to go and test it for real !!!
cheers
Phil<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Carl[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->I bet numbers could be better in real life<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 17 2001, 8:34 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->With optimum conditions, the right tires, and an experienced driver behind the wheel, the 0-60 time might be close to the sub 4 second numbers AutoItalia reported. If someone has a 3.0 V6 164 in the Seattle area they don't want, and will donate it, as well as a mechanic to do the swap, I would let my X be the test subject.
<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]scot[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->X1/9 drag coefficent<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 17 2001, 10:31 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->What is the number an where did you find it?
Also, if you have the software to figure it, can you change car details and get new number?<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "j";n54_em = n54_em + "b";n54_em = n54_em + "r";n54_em = n54_em + "o";n54_em = n54_em + "w";n54_em = n54_em + "n";n54_em = n54_em + "@";n54_em = n54_em + "n";n54_em = n54_em + "d";n54_em = n54_em + "s";n54_em = n54_em + "u";n54_em = n54_em + "k";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + "m"; document.write("Julian"); // --> </SCRIPT>Julian <NOSCRIPT> Julian </NOSCRIPT>[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 45px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->.cd and software<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 18 2001, 12:14 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 45px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->The Alfa engined car uses a Dallara bodykit with a substantial rear aero-wing. Rest assured that the drag generated is painfully higher than on a stock X. For a start the car is nearly 12" wider than normal!
The software I use is a simple DOS based affair but it comes with a substantial (1000 odd) library of cars (mostly American) including the X1/9.
The options for each car include engine parameters, engine location, gearing, drive type, car size, weight, ride height, wheel size, tyre size, width, profile, etc. The drag coefficient is one of the parameters you can play with.
The analysis includes straight foward acceleration with optimised gear changing (damned useful for anyone racing an X) and optimised standing start. It also includes a rolling start. It doesn't stop there though - you can spend ages optimising various parameters automatically to your criteria, or generate power and torque curves.
For any real engine tinkerers/tuners out there you soon realise that it is actually quite limited, but the accuracy of the estimates is quite daunting!
The software is about 600k, if you want a copy email me and I will send it to you. You the email address on this post though, not my normal address as the odds of my remembering to bring the package home is pretty slim!
Julian
=======================================
Visit the lair: [URL="http://www.the-lair.demon.co.uk/"]http://www.the-lair.demon.co.uk [/URL]<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Phil[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 60px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->yep<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 18 2001, 1:25 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 60px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->hi
Can't remember where we got the Cd from. Sounds like you've got the same program ! Great fun when the lads come over for a few beers.... grudge racing without risking life and limb !!!
Yes, has an existing list of 100s of cars. My problem is lots of them are in seriously detuned US form, here we have no catalytic converters and stuff. Easy to create new cars, and I have about 20 volumes of "World Cars", the annual published by the Automobile Club of Italy, which gives comprehensive specs for (in theory) every car produced per year. Great source of info for mixing and matching engines/gear ratios/bodies, etc.
For example, I have programmed in all sorts of Fiats.... 903 powered 126, 1100cc bike-powered 126, Strada Abarth powered Uno, etc. etc. as well as my own X with +10bhp, +20bhp, +30bhp.......<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "j";n54_em = n54_em + "u";n54_em = n54_em + "l";n54_em = n54_em + "i";n54_em = n54_em + "a";n54_em = n54_em + "n";n54_em = n54_em + "@";n54_em = n54_em + "t";n54_em = n54_em + "h";n54_em = n54_em + "e";n54_em = n54_em + "-";n54_em = n54_em + "l";n54_em = n54_em + "a";n54_em = n54_em + "i";n54_em = n54_em + "r";n54_em = n54_em + ".";n54_em = n54_em + "d";n54_em = n54_em + "e";n54_em = n54_em + "m";n54_em = n54_em + "o";n54_em = n54_em + "n";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + ".";n54_em = n54_em + "u";n54_em = n54_em + "k"; document.write("Julian Brown"); // --> </SCRIPT>Julian Brown <NOSCRIPT> Julian Brown </NOSCRIPT>[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 75px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->familiar<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 19 2001, 12:44 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 75px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Certainly sounds that way!
The first thing I did was plug in the specs for my race car, but I was seriously dissappointed until I realised the sort of limitations the program has built-in.
No options for slicks, for manipulating the power/torque curves, or altering the balance/weight of the engine components. The whole thing is based on an assumed value. Sure you can compensate in some ways but it never seemed quite right.
Strangely enough when I heard about an Alfa engined X I did the expected and plugged in the details. Some fiddling around presented some nice results but nothing quite so quick as your estimate....then I plugged in a hot version of the engine (the Auto-Italia guys are getting 500+bhp out of the turbo'd versions of the same engine). I had to stop there, pulling 3G under acceleration was getting silly!
Julian
=======================================
Visit the lair: [URL="http://www.the-lair.demon.co.uk/"]http://www.the-lair.demon.co.uk [/URL]<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 17 2001 at 6:38 PM[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "s";n54_em = n54_em + "h";n54_em = n54_em + "u";n54_em = n54_em + "t";n54_em = n54_em + "t";n54_em = n54_em + "e";n54_em = n54_em + "r";n54_em = n54_em + "_";n54_em = n54_em + "b";n54_em = n54_em + "u";n54_em = n54_em + "g";n54_em = n54_em + "_";n54_em = n54_em + "1";n54_em = n54_em + "@";n54_em = n54_em + "h";n54_em = n54_em + "o";n54_em = n54_em + "t";n54_em = n54_em + "m";n54_em = n54_em + "a";n54_em = n54_em + "i";n54_em = n54_em + "l";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + "m"; document.write("Carl"); // --> </SCRIPT>Carl <NOSCRIPT> Carl </NOSCRIPT> [/FONT]</TD></TR><TR><TD vAlign=bottom colSpan=3><HR></TD></TR><TR><TD colSpan=3>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->http://www.digest.net/alfa/FAQ/164/pb94/pb94-1.htm
Gear box ratios are at the end of this...
For all wondering, this is for a previous thread talking about a Alfa V6 in a X.
Other notes
15" wheels front, 16" rear, 195/45/15 ans 225/45/16
Custom exhaust, looks like a single tip, non cat exhaust. 5 speed, no Bumpers, and a big wing on the back. Any more info needed let me know...<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top noWrap align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->and the results. (Alfa V6 powered X1/9)..........<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 17 2001, 8:30 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Using those ratios, 220bhp, supplied rear tyre size, standard X drag coefficent, I got these results....
0-30 1.4
0-50 3.6
0-60 4.5
0-80 7.8
0-100 12.3
1/4 mile = 13.4 seconds, 104.6 mph using optimal launch method of clutch dump at 1700rpm.
Max speeds (@7100rpm) =
1st 35mph
2nd 62
3rd 89
4th 118
5th 149.
Now, for someone to go and test it for real !!!
cheers
Phil<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->I bet numbers could be better in real life<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 17 2001, 8:34 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->With optimum conditions, the right tires, and an experienced driver behind the wheel, the 0-60 time might be close to the sub 4 second numbers AutoItalia reported. If someone has a 3.0 V6 164 in the Seattle area they don't want, and will donate it, as well as a mechanic to do the swap, I would let my X be the test subject.
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->X1/9 drag coefficent<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 17 2001, 10:31 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->What is the number an where did you find it?
Also, if you have the software to figure it, can you change car details and get new number?<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 45px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->.cd and software<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 18 2001, 12:14 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 45px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->The Alfa engined car uses a Dallara bodykit with a substantial rear aero-wing. Rest assured that the drag generated is painfully higher than on a stock X. For a start the car is nearly 12" wider than normal!
The software I use is a simple DOS based affair but it comes with a substantial (1000 odd) library of cars (mostly American) including the X1/9.
The options for each car include engine parameters, engine location, gearing, drive type, car size, weight, ride height, wheel size, tyre size, width, profile, etc. The drag coefficient is one of the parameters you can play with.
The analysis includes straight foward acceleration with optimised gear changing (damned useful for anyone racing an X) and optimised standing start. It also includes a rolling start. It doesn't stop there though - you can spend ages optimising various parameters automatically to your criteria, or generate power and torque curves.
For any real engine tinkerers/tuners out there you soon realise that it is actually quite limited, but the accuracy of the estimates is quite daunting!
The software is about 600k, if you want a copy email me and I will send it to you. You the email address on this post though, not my normal address as the odds of my remembering to bring the package home is pretty slim!
Julian
=======================================
Visit the lair: [URL="http://www.the-lair.demon.co.uk/"]http://www.the-lair.demon.co.uk [/URL]<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 60px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->yep<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 18 2001, 1:25 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 60px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->hi
Can't remember where we got the Cd from. Sounds like you've got the same program ! Great fun when the lads come over for a few beers.... grudge racing without risking life and limb !!!
Yes, has an existing list of 100s of cars. My problem is lots of them are in seriously detuned US form, here we have no catalytic converters and stuff. Easy to create new cars, and I have about 20 volumes of "World Cars", the annual published by the Automobile Club of Italy, which gives comprehensive specs for (in theory) every car produced per year. Great source of info for mixing and matching engines/gear ratios/bodies, etc.
For example, I have programmed in all sorts of Fiats.... 903 powered 126, 1100cc bike-powered 126, Strada Abarth powered Uno, etc. etc. as well as my own X with +10bhp, +20bhp, +30bhp.......<!-- google_ad_section_end -->
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[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 75px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->familiar<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]June 19 2001, 12:44 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 75px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Certainly sounds that way!
The first thing I did was plug in the specs for my race car, but I was seriously dissappointed until I realised the sort of limitations the program has built-in.
No options for slicks, for manipulating the power/torque curves, or altering the balance/weight of the engine components. The whole thing is based on an assumed value. Sure you can compensate in some ways but it never seemed quite right.
Strangely enough when I heard about an Alfa engined X I did the expected and plugged in the details. Some fiddling around presented some nice results but nothing quite so quick as your estimate....then I plugged in a hot version of the engine (the Auto-Italia guys are getting 500+bhp out of the turbo'd versions of the same engine). I had to stop there, pulling 3G under acceleration was getting silly!
Julian
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Visit the lair: [URL="http://www.the-lair.demon.co.uk/"]http://www.the-lair.demon.co.uk [/URL]<!-- google_ad_section_end -->
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