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Burnout: Problems with big blocks & 1.20

3 posts by 2 people · 22 May 1998 - 19 Jun 1998

After patching to V1.20 I have a weird problem. As soon as I use a chevy big block engine (427 or 454) it will refuse to rev over about 4500rpm. This is even though I have power peaks over 5000rpm. It will rev fine until 4500 and then just stop. Will not go over 4500 no matter how long I hold the gear. Small block engines do not have this problem. I've looked around, but I don't see a rev limiter setting anywhere. Changing the power curve by using different cams doesn't change the cut-off rpm. I also tried resetting the motor and the whole car. Still does the same thing. Can anyone help me here? I'm trying to simulate my 454 corvette and it seems V1.20 will be fairly close if I can get it working. V1.1 was ridicilous as it said it would run 9s (it runs 13 flat on street tires, probably mid 12s on slicks. No way it will run 9s). -- Markus Strobl, Dallas, TX http://www.***ramp.net/~mstrobl
Pete 22 May 1998#409201
Markus, bring up the *** menu. You will see the settings for the 2 step in there. Set the shift points to the appropriate levels. The numbers you get in the new patched version should be much more realistic. Just don't go over board with the specs you are loading in the engine room, tires and suspension. If you make it hook harder than it is capable in real life the numbers will be out of whack. A stock street car capable 13's on street tires could hit high 11's or low 12's with slicks and ladder bars or 4-link. Pete
Pete 19 Jun 1998#411935
Keith, very simple, you can't get the power to the ground! Slicks will help but if you are running too stiiff a shock and spring combination, the weight won't transfer. If you add ladder bars or a 4-Link then weight transfer isn't the problem. Sixty foot times are what will determine whether you are getting the power to ground. I have a friend who put a stock Caddy motor into a 3000lb vega with a 4-link it ran 11.6's. Motor probably didn't make as much power as yours, but it had a ton of torque! And it hooked! If you look at muscle cars from the 60's on street tires almost impossible to get into the 12's. A few could hemi's and big block cars. Stick some slicks and ladder bars on the car and watch the ET"s. It only takes 255 net hp to get a 3600 lb car into the 12.5 to 6's. But stock type suspension low 14's about all its good for. If you are running the type of hp I suspect you are, with the right gears and ladder bars your car would go 11's with ease. Also need to know weight and mph to determine your hp. Pete > > A stock street car capable 13's on street tires could > >hit high 11's or low 12's with slicks and ladder bars or 4-link. > > Pete > Hey, Pete, I don't know where you got this from, but I Own a '79 Z-28 that > does 13.3 on street tires. With Slicks it goes 12.9. I don't see how slicks > can shave 1-2 seconds off your car, unless you have a big block, and you're
Quoted text (9 lines)> running 195-60-15's, and move to slicks! > - - - - - - > (Project In Works) > 1981 Z-28, PST Poly bushings & Springs, 1.25" F, 1" R Sway Bars, > Calvert Racing Cal-Tracs, SBC 358 (Bal & Blue, 6 inch rods), > Air Flow Research Heads (2.05/1.60 64cc, full porting, polished > combustion chambers), Victor Jr. intake, Edel. Perf. 750 Carb, > Lunati Roller Cam & Lifters, 1.52 full roller rockers, MSD > Distributor & 6AL. TH400, 3.73 posi.

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