Best Turbo For 'my' R33 Gtst

[GeeTR]

Anything with a gain control should let you take the edge off the boost ramp rate.

Wheel spin in 4th with a .82 3040 fark me fiddally!!!

[sinistaGTR]

The GCG and similar hi-flow will beat 3800rpm easily enough for response

but your limited to 250-260rwkw if your lucly

[R31Nismoid]

Yeah i know.

But a 500hp/.63 rear GT30 wont get him real 400rwhp either

He'll need to go bigger, and thats less responsive

So cut the losses and go response for 350rwhp and have a more responsive car.

Which at about 350rwhp is spot on and doesnt require a lot of upgrading other areas

[sinistaGTR]

there was a guy on here a while ago, that made made 346rwkw on a .3040 .63, he had forged internals power fc and just a set of pon cams. but yeh i do agree bigger turbo means easier power but more lag lol.

[Rolls]

but your limited to 250-260rwkw if your lucly

Your average power in the rpms you will be using most of the time on the street will be higher though. I guess it comes down to application then.

[Andi]

I agree, even if you are limited to 250-260rwkw with a hiflow/GT25/GT28 unit thats only the peak power figure. It'd be the power and torque curves of the turbo that will show you where the mid-range of the turbo would be alot different I reckon.

[R31Nismoid]

there was a guy on here a while ago, that made made 346rwkw on a .3040 .63, he had forged internals power fc and just a set of pon cams. but yeh i do agree bigger turbo means easier power but more lag lol.

It was a .82

And the person was bigcarl.

You wont get 340rwkw with a .63, i dont even think you'd get there on some better fuel, C16 etc.

[Kaido_RR]

I agree, even if you are limited to 250-260rwkw with a hiflow/GT25/GT28 unit thats only the peak power figure. It'd be the power and torque curves of the turbo that will show you where the mid-range of the turbo would be alot different I reckon.

ive got a gt2835 pros and got 251rwkw @ 16psi with a very shitty tune... i dont think im close to the limit of the turbo yet

[series2r33]

gt3076 500hp turbo gave me 260rwkws on 20 psi at 3500rpm / 3800rpm

Thats fairly high boost there, i really only wanna be running like 14-15, so im not punishing my engine. Thats why i was told to go with the GT3040 because its got the .63 so it should still spool up fast. And also make the same power as the GT3076 but on lower boost.

[wolverine]

take the excellent advice you are getting. HKS GT-RS, GCG Hi-flow, Slide Hi-FLow are the picks for a streeter RB25. every other turbo compromises where you will spend 90% of your time ie: between 2700-5500rpm

forget peak hp numbers and buy something that will be quick everywhere that makes great average power and these three turbos fit the bill.

anything larger will be a poor cousin according to your originally stated goals.

[ECR033]

Thats fairly high boost there, i really only wanna be running like 14-15, so im not punishing my engine. Thats why i was told to go with the GT3040 because its got the .63 so it should still spool up fast. And also make the same power as the GT3076 but on lower boost.

Boost doesn't kill (punish) an engine - poor tuning will kill an engine before boost does...

For the record, I have an ext gated GT3040R with supporting mods and make +285rwkw on 17psi with full boost in the low 4k rpm range. It's a little laggy, but still very streetable - i also don't mind the old fang at the drags, so I wanted something with a reasonable top end - I've done an 11.9 @ 118.

BUT, this turbo would not be my first choice if I was after a nice, responsive streeter. As MANY people have already said, the HKS2835ProS or GT-RS would be my turbo of choice (and yes, they do come with the T3 flange to bolt directly to an rb25). Full boost in the mid to high 3k rpm range making an easy +250rwkw with supporting mods.

Do yourself a favour and listen to the advice people in the know (and with experience) and giving you

[bigcarl]

i couldnt agree more ,try fanging it around a corner on boost with a gt3040! go the gcg hi flow alot less hassle to fit and dollars !!

[series2r33]

try fanging it around a corner on boost

Why would i be doin that in a built up area?... yeah fair enough street car but i'd boot it somewhere sensible from most likely 50km onwards, like an open road, and i reckon boost should be on tap from there anyway. I dont wanna race from traffic light to traffic light like a new kid with his P plates or circuit race the thing.

For street use i mean i dont want a massive turbo that kicks me sideways the whole way up the street on boost, but one that can take off from normal driving and have heaps off balls and a possiblity to go quicker if i intend to in the future.

If u have an aftermarket turbo you can comment on it. (like bigcarl, sinistagtst etc) And more often than not u'll be bias towards it. But i reckon half the comments on here are from guys with stock turbos running their mouth, am i right. The only real way to know whats better is to have driven both and thats what i was really after, not someone guessing what would be best, i can do that!

I also wanna run my car down the quater and see what time i'll get, and from what sinistagtst and the turbo shops tell me this is the turbo best suited and what im lookin for

ECR033 - Boost doesn't kill (punish) an engine - poor tuning will kill an engine before boost does...

Yeah im sure poor tuning kills engines... find me someone who doesnt know that. I never said i was gonna get it tuned badly just for the hell of it did i. But u agree excess boost will damage engines... thats what i said!? And thats why if i can get to a certian power figure with the same spool up time and less boost i'll be doing it.