Checking the BS.

[Chimera]

ok so there is this guy on another board that brags about having a sick *** 300z TT, personally i think 300z's are crap.if i wanted a fast turbo car id get a supra or put a turbo in my 240.

here is what he said:

I'm willing to bet that the eclipse gets about the same mileage as the camaro. I get about 14MPG in my car which is modded. People don't realize that boost sucks gas. On the track I get about 20 minutes per tank of 100 octane. The road conditions in colorado suck, that is why people in colorado who are concerned about going fast other than in a stright line opt for suspension mods first and power mods second. With the on/off winters the roads suffer. Take today for example, it was 12 degrees when I left for work at 6am, it was 50 at about 3pm and when I got back to the shop it was 19 degrees at 4PM. Those temps wreck havoc on roads. But I did take the car uot tonite and it was pretty mean. But...... The sheer layout of the roads is unmatched by anywhere in the world I have been. More about the topic now. People at this altitude who are concerned with performance opt fo a turboed car. Hell I was almost dead even with a 2003 cobra when I was near stock. At the strip I have taken a camaro (1998) which had a 383 stroker with a 125 shot. It goes to show that you must consider he conditions when elvaluating a race.

So is it true that a car with a lower displacement and 2 turbos will out perform a 383 stroker with 125 shot, in Colorado elevations?cuz i call BS, but im no expert on high elevation #s and performance, but if he did do that, he beat the driver not the CAR.

[skydragoness]

Hmm, by the laws of science it should be BS. Turbo-charged cars suffer at high-altitudes due to lack of oxygen, they need denser air to operate efficiently. But nitrous has been used in aircraft engines to boost power at high altitudes to make up for the air being less dense and yadda yadda.Must of been sheer luck, or he's not fessing up about having nitrous on his TT himself. Ho ho ho.

I still like z32 tt's more though (maybe a n/a z32 with nitrous would've done better?)

edit: on second thought, unless they were drag-racing on a mountain, the turbos shouldn't suffer too badly. I'm assuming the dragstrip is in a valley where the height above sealevel is lower. Overall, with the lack of evidence supplied, it's inconclusive.


Modified by skydragoness5 at 12:18 AM 1/24/2005

[ca18datsun510]

they used to use turbo's on airplanes too.

thats pretty much where they came from.

[cstang1968]

In 1998 they had the ls1 motor. I've never heard of a 383 ls1. They do 383 strokers to lt1 motors...sounds like the guy is just making stuff up. Dead even with an 03 cobra when he was stock...

[nismodave]

[SmithSR]

Rick Flair! Priceless!!

[themadscientist]

Ric Flair, what about Woman?

[Arrow]

he also said that his car is not stock... and he said that he was ALMOST even w/ a 2003 cobra. I'm not sure about this but the 2003 cobras might not have all been supercharged, and if the one he ran against wasn't than it's very likely tat he could have been even. Cobras are powerful, but heavy. Not to say that a Z isn't heavy, but it's lighter than a Cobra. I have a friend who has a 300Z TT w/ 375 rwhp, and runs a 12.3 1/4. And that's w/ the stock turbos and such. I wouldn't doubt that this guy is telling the truth.

Just my two cents though.

[Meantime]

In 1998 they had the ls1 motor. I've never heard of a 383 ls1. They do 383 strokers to lt1 motors...sounds like the guy is just making stuff up. Dead even with an 03 cobra when he was stock...

Lingenfelter does 383 and 427 kits for the LS1.

[drifter_for_life06]

im gonna ahve to raise the BS flag as well

when i was in Denver visiting my Uncle last year, he complained about how slow his car was at the track that high up. he has a turbo'd foxbody and he said that there is a HUGE difference that is noticable not in the times but even in the seat from where he goes in Denver to when he goes to tracks that arent a mile high

[cstang1968]

See, i've only heard of the 427 strokers for the ls1 motor. All 03 cobras are supercharged.

[Nismo_Freak]

See, i've only heard of the 427 strokers for the ls1 motor. All 03 cobras are supercharged.

Supercharged cars will suffer more than turbocharged cars at altitudes. Mainly because the pulleys just spin the blower at a set RPM, and whatever resulting boost pressure it makes is what you get. Turbocharged cars, even stock ones, have a set wastegate spring pressure to regulate the actual PSI the engine is running.

Ex*.

Supercharged car will have 10 PSI at sealevel but 7 PSI at DenverTurbocharged car will have 10 PSI at sealevel and 10 PSI at Denver (provided the turbo can flow that much)

*Figures are just arbitrary.

So... knowing that, and taking into account a limiting factorization.

03's with your typical driver run low 13's to high 12's from what I've seenZ32 TT's stock run high 13's stock with a good driver

I can see how a "near stock" Z32 could outrun a 03+ Cobra in a high altitude region. It wouldn't be by much though, and it would have to require a poor driver on the Cobra's account. I still like the fact that he's so happy about outrunning a stock Cobra lol.

[Chingon]

Also, yes tubocharged engines are better off @ high altitudes than na engines...read up on you physics ppl!!

[drifter_for_life06]

its more or less common car knowledge IMO

[PantherRacer]

Also, yes tubocharged engines are better off @ high altitudes than na engines...read up on you physics ppl!!

Yeah, what I was gonna say when I started readeing lol, that used to be mainly 4 those big diesel engines though, but a turbo car won't really "suffer" at a high altitude

[drifter_for_life06]

if the turbo cant flow enough then yes, it wll suffer, but there shouldnt be a problem with that in most cases