That 335i model is pretty tuneable. Great engine. BMW waited forever to boost a motor so you knew they'd do it right. My sales director told me a story about his bone stock 335i 4dr auto pulling on an Neon sartee4 while going across the San Mateo bridge. He said he got to 130mph before his wife yelled at him. Not like a sartee4 is the fastest thing on the road but they do OK.

 

A Y body probably. Not your standard Fbody stock to stock. Rearwheel Hp and weights are almost identical. When you talk the flat torque curve of the n54 turbo 6 (not to mention closer trans ratios or areodynamics), any slight hp advantage (for an fbody) is moot

 

no way dude. a 98-02 f body has a definate weight and rwhp advantage. I know from first hand expierence also. Show me your evidence. the 99-02 cars were underrated and most make around 300rwhp from the factory.

 

Funny that they both tend to run 13.5s at 105 then.

And NO we are not talking times that joe smoe ran at the drag strip. We are talking CORRECTed times that have been run by a mag test that use repeatable methods.

Iv seen a few fbody dynos myself. They tend to be in the 285-290 range. And it is much peakier than the 335 dyno. 335s weigh about 3450- (exactly what fbodies weigh). And they dyno at 275 (almost everyone). Your not going to be able to generalize that a 290hp ls1 will be able to pull it when the power curve is much less flat.

Il give you a little first hand experience. I raced (TWICE) an SS camaro 6speed with exhaust and tune. The guy himself said it made a little more than 330hp. At the time my car was probably in the 320-325 range. It was dead even from 40-120. Your not going to be able to guarantee a difference in a pull with a difference of 10 hp. Anything less than about 5 percent hp/weight difference is going to go down to the driver. Its that simple.

 

9 times out of 10, an LS1 f-body will pull a 335i. Now a 2.73-geared A4 F-body loses the advantage, but an M6 with a good driver should have minimal problems pulling out the win.

 

The BMW has shorter gearing and a launch control to make up for its less power/torque.
Like these?
http://www.stangbangers.com/01_Bullitt_Article2.htm
http://www.stangbangers.com/01_Cobra...SS_Article.htm
http://www.popularmechanics.com/auto...6.html?page=11

Were these "dynos" automatic cars? An M6 LS1 will dyno 300+RWHP bone stock, search.

 

I didnt say they made the same hp. I said the difference was not significant. And I also said that the 6speed auto will offer an advantage.. which offsets any hp difference

Sure looks like example 1 was at a drag strip.. bzzz.. excluded.


Does not say about example two.. but it was also a 13.5... no difference.

And I seriously doubt popular mechanics uses corrected tests since its not a auto mag. But it sure looks like a dragstrip logo in the background eh? - EDIT
Ah, yeah, im sure these were corrected ..
http://www.popularmechanics.com/auto...76.html?page=1

Compare the results for car and driver. One of the few that corrects to the same air temp and humidity.

 

Yes, but generally magazine drivers can't drive.

 

Thats true, but I am talking about all things (as much as possible) being equal - otherwise we are gonna get very different results. At least they generally use the SAME drivers. So that takes that out of the equation.

 

Yeah, but if something has launch control and a 6spd automatic it's gonna be WAY easier to get good times out of than something like an LS1 F-body. And who knows, maybe they even make the mistake of running the F-bodies with the traction control on.

 

Just for clarity, its not launch control. Its traction control. It still has to be turned off or it cuts power at the first onset of wheelspin. And if you turn it off it will roast them just like anyother car.


No disagreement on the 6speed auto part. Thats just what an additional 8 years of progress gets and it can offset the hp advantage.

 

funny thing about traction control is sometimes with a super bad driver it actually helps!

buddy of mine i use as an example all the time, 2000 SLP Firehawk, ran his fastest time of our night at the drags with his traction control on.

 

how come the 335i is listed as weighing more then are the magazines just making up the weights and messing with people? I dont think so, all across the web they are listed as weighing more. Here is a link on a vishnu tuned car that made 265rwhp where are these ones that make damn near the same as an ls1 car?
http://www.edmunds.com/insideline/do...leId=119485#18

 

The vendor for specific car you reference is very much inclined to show the biggest improvement for his product. So he will quite likely provide one of the lower numbers. As I indicated 275 is a much more representative number.

http://www.dragtimes.com/BMW--335i-D...l?resultpage=2
http://www.burgertuning.com/images/dyno1.jpg

And I again, I never said they were the same output - I said they were within 5 percent and the gearing was an advantage for the 335 (and the torque curve). I dont see any LS combinations making 90 percent of their peak torque from 1500-5500 rpm

BMW lists the 335 at about 3550 (verywell Max 100lbs over a LS fbody - approx .1second in a 1/4)- I guess you need to take it up with them if you feel thats incorrect.

This does not add up to be an automatic win for an LS fbody. You might feel otherwise but until we have some factual evidence,, thats about all is its your opinion vs mine.

 

you are right you never said the same but you said almost identical and it seems they are about 20+ horsepower shy and they weigh at least 100 lbs more. That is an advantage even if the car makes such good peak torque you dont race at at fifteen hundred rpms lol. o and i am backed with more facts to prove my opinion you have allready gave false info twice now. i am not trying to prove you wrong i just want the truth to be out there and to thay the ls1 98-02 car does not have the upper hand is just bad judgement.

 

I also said that differences of 5 percent would not automatically make any car be able to pull on another. I submit that the difference will be no greater than 5 pecent bc the transratios. I still have not seen stock LS1 numbers of 300 (not in my area). So thats where we differ. And I didnt say at least 100lbs difference, I said max, and thats figuring the low end of fbodies (that I have seen). Im sure there are many in the 3500lbs range also.

We are talking fractions here.. I seriously doubt you can make any guarantees on fractions of percents.. maybe you have some abilty to assure that - I dont.

 

Dude i never said i assure you or that i guarentee you dont put words in my mouth. I said should. Maybe you live in a area with a bad da where the boosted cars have an advantage this is why you think this way. But if you think about it logically when you generally have a lighter car with more power even if it is not by a whole lot it SHOULD win. Is that so hard to understand?

 

Very well, I stand corrected. On paper, the LS has a slight advantage but I still submit that it does not come down to peak power. And thats only applicable to a NON-auto trans fbody.

 

Clearly you haven't looked then.
http://www.ericohlsen.com/FBODY/CamaroDyno.jpg
This was one of the first things that poped up in a google search. You seriously need to do some research on other cars once in a while.

 

Variations of 10hp from one dynojet to the next and certaintly accounting for corrections are not uncommon. They are still simply machines that have inconsistencies.

Your much more likely to get a valid number from a set of measures and then taking the average then a single sample.