thats made my mind up then, i'd be happy with less than that lol

mark

 

All good in the billet hood

 

lol ^^^

 

Hey there i have ready threw 30 pages of this thread and now i thought i would ask my question.....

I have got the following mods fitted:
255 fuel pump
cold air induction kit
megan headers
full decat 3" system
550 injectors (but looking to get 750's)
front mount intercooler

so now just need to know what turbo to get to puch towards the 400bhp mark

this is all on my 2002 sti tpe uk prodrive

any advice would be helpful thank you

 

With the 740s fitted, I'd be tempted to get the SC46 Billet. Mapped on V-Power, it should make around 420-450bhp on a 2.0, I would have thought. Just the right amount of power for the New Age STi internals to take (so long as you don't track it a lot...)

 

i wont track it at all it is purely a weekend toy that is it and i take it the sc40 never did anygood so the sc46 is the one to get?

 

My mate had the SC40 on his P1 and made 393bhp and 370ftlbs on vpower with supporting mods,would have def made over 400 if it wasnt for a missfiring plug,great turbo that spools like the wind.

 

Hi,

the SC40 Billet is also known as a 20 G billet and is a stunning turbo at a realistic price, £950.00 gets you one of these sleeve bearing units.

If you want a roller bearing core then it would be the SC42 Billet or the SC46 Billet, at £1250.00 and £1295.00 all in stock.

All prices + vat.

cheers
Kev

 

what turbo would you reccommend? the sc40 or the sc46?

 

The SC40 is sleeve bearing, the 46 roller. So even though a bigger turbo, the 46's roller bearings go some way to helping it spool similar to the SC40.

I'm sure the 40 is quicker spooling, but by how much? Depends if you want to chase bhp over super-spool. Perhaps the SC42 is the perfect halfway house? It too has a RB core and surely can't be far off the 40's spooling rate...?

 

was there graphs on the sc42 on a 2litre and what supporting mods were used?

 

no graphs yet on the sc42 i am waiting in vain lol busting to see what is will achive hp wise and boost wise

 

Hi,

still waiting to do one but results from the states so far show it as a winner, spool should be even better on our version as we use a smaller exhaust housing.

http://forums.nasioc.com/forums/show....php?t=2209051

Cheers
Kev

 

that graphs to me shows it only making 380 amd i missing some thing here or not reading that graph right as i must admit im use to the old dyno dynamics read outs

 

Don't the yanks like to show WHP - horsepower at the wheels?

If so, there's your answer.


Mind, allowing for a (very minimal 17%) tranny loss, that would mean it would be making at least 455 at the fly!!! Can't be right? Unless tranny loss is much less than 17%, anyway?

 

there is now way a 7cm sc42 is making 380whp that alomst 450-470hp be nice thou a joz

 

That's right - I added that observation to my post too ^^^

 

one day i see some good old dyno daynamics grapsh and then i may part with my money but not until then lol

 

hehe

Like comparing apples with..... hamsters.

 

thing is there is like no price difference between the 42 and the 46, so surely the 46 would be the one to go for?

 

Hi,

the 42 will spool a little quicker and in some cases on a 2.0 ltr engine the SC46 can choke up at the top, adding more boost causes power to fall off, I stress "in only a few cases", hence the re-introduction of the SC42, and the fact that some people prefer the BB core to the sleeve bearing version.

As shown in an earlier post the SC42 did indeed out spool the MD321 H, made the same power and completely removed the customers problem of compressor surge, not a fair test for the turbo as the engine was maxed out and could not breath any more, therefore top end figures from either turbo were not conclusive.

Hope the above helps

cheers
Kev

 

as there is no graphs of the sc42, has it been tested on the 2litre with supporting mods?

 

why could the engine not breath any more in what sence do you mean i.e heads or are we talking fmic or headers upipe them type of mods as my engine is a forged bottom end with standard version 4 heads but i do have full supportting mods

i may just have to drive my version 4 all the way to you guys and you can put on the 42 and see what happens and if i dont see 400- 410
then were chuck the 46 on

 

You'll have to wait in line mate,am waiting for a twinscroll SC46

 

An excellent choice juggers

 

A twin scroll 46 billet must be feckin' awesome in spool........ and then power

 

Have we seen any results for a twinscroll SC46 on a 2.5? This thread is way to long to find anything lol

 

If you can wait for another 675 miles, I will put them up

 

Get driving, man

 

Im going as fast as I can but the price of v-power and the run-in map is slowing me down