Turbo Upgrade

[straughsberry]

I must say the split dump makes boost come on about 400 rpm earlier and "off-boost" response is noticeably increased. A very different feel to stock T.

[RAP1D]

So the question is whats the ultimate power level, and how can it be used?

It would be nice to have a usable level, like a well tuned 300wkw car has through the midrange/ down low, and then a massive top end punch that only 400plus can give

[groper]

'ultimate' is user biased aswell senna, my definition of ultimate would be somwhere between 450-500rwkw. Yours might be completely different??? Traction is not a problem with good quality semi slick tyres, mine hold 400rwkw in second gear without spining if the road is good quality. The tune also has a huge effect on traction, if you ramp up boost slowly to avoid the big torque hit, traction isnt a problem.

So tell me senna, what is 'ultimate'?

[DUS12]

for the street I brought a gt42r with 79mm front wheel and a 5 inch inlet ha ha, I pretty sure its called a swantko special or something

[groper]

you forgot to add that its a 1200hp turbo!!! BCL lookout...

[groper]

I even found a picture of it.... `swantko special' as used on 1000+rwhp supras

[senna_T]

hmmm, some debate has been risen!

Personally I think the 3540 with external gate is the best set-up for the street. Somewhere around 12-13psi would let you run normal street tyres to keep costs down but still be a very quick car. Saying semislicks can hold 400 on a good road is like saying my street car runs 10's when I strip the interior and fit slicks and front runners, not so much a street car anymore (we've already had that debate). Australian roads aren't great everywhere, I know on most roads around sydney my street tyres struggle for grip in second and first gear is absolutely useless.

P.S. the 42R is the *beep*! :roll:

Edited 09/06/08 01:05 AM by senna_T

[RAP1D]

I dunno Pat, if I could get semi's in 285/30/19 that didnt cost a grand each I would run them everyday... being able to nail it in 3rd with 450 at the treads, on the M2 would be close to "ultimate" for me lol

[JETURBO]

If no budget is in the mix why not a twin turbo set up like whats on the skyline r34 gtr would have to agree that's a ultimate set up .

[ETM]

My manifold swap gave the low end response and stunning power delivery that im sure you are referring to senna, its not the turbo that's the problem its the manifold.

When I get it back on the road you should come down for a spin;)

Edited 09/06/08 05:58 AM by ETM