Hi there I'm still planning on modding my s14 for drifting...

looking for a "low boost hightorque setup"!

so far i would like to go with:
cp pistons with 9:1 CR and pauter x-beam rods
acl bearings
greddy fmic
740cc sard injectors
sum 3"turboback exhaust
200cell cat
probably a decent cam(no idea what!?! advice appreciated!!!)

now my big question is: will a HKS GT2530 be capable of doin 350rwhp with this kind of setup?

i belive on stock turbo n boost the 9:1 CR will pull between 240-270hp but can the HKS turbo handle the rest of the power i'm willing to get?

thanks alot for any info
cheers

sebastian

my friend runs ke20's in IPRSA, and says the restrictors (inlet is it?) they have to run mean they only get 230hp but make 440nm of torque
since you said you want low boost high torque maybe something like that could work?

sounds tuff!!!
well i dont wanna restrict my car that thing shall be open as a bitch on a saturday night

no seriously i think i feel what you say, seems like the rally cars 300hp(restricted) but 600Nm...
sumtin like that would be noice!!!but without restriction...

i hope to keep the torqueband low with a mild cam and the 9:1CR and then boost up for sum real bad ass midrange torque say like 3400RPM full boost peak out at like 7200rpm and hope to get 350hp atw


is this dreamdancing?

Yes it would, BUT 260rwkw would definitely be pushing it (you'd be running upwards of 20psi). With some cams, that figure would be achieveable on a safer boost level.

Your best bet is a Greddy T517z/T518z, despite being 'old-school' plain bearing, they crack the 250rwkw mark time and time again on ol' SR20's, and are still VERY responsive. If HKS really is your scene, you might want to look to move up to a GTRS/GT3076, but that's no longer staying *super* responsive.

The other option is lower your goal by 20rwkw

The most i've heard of a 2530 making on a 2L engine is 320rwhp and about 340-350rwhp on a 2.5L engine so i don't think you'd quite get to 350.

i would suggest a garret gt35/40, they are really responsive with the rights backings

i have a 25/30 in my sil80 drift car, (check out my ride in members rides) running a gt35/40, 50mm ext. gate, greddy plenum, most of the internals r stock, making 300rwkws on 16psi, now i know 30 bottome give more talk, and it has 2 extra cylinders, but the turbo is quite responsive, full boost at 3000rpm

car made 291rwkws with 654nm of tourque on 16psi at 6800rpm

Response from a GT35/40 is going to be vastly different between an RB30DET and SR20DET though.

yeah but he wants full boost at 3800rpm, im making full boost at 3000rpm, what about going a 28/76r from garret, that would be killa responsive and hold boost for a 20

thanks guys...

i was thinking about the garret gt2871r with the antisurgehousing and 48trim .64A/R first
but then someone told me that the gt2530 hks would be more responsive...but cant hold the boost as it seems....

20psi would be 1.4bar that would be hard on the gt2530
but i believe the gt2871r will spool quicker on the sr20det than a 2876 or what would you guys say anyone allready made sum experience?

@7oxin probs i will just go on safe 320rwhp and run 1.2bar on the gt2530 could be cool as well i believe with the 9:1 CR id have enough torque...know bout one that has 360hp and 505Nm out of a "stockish" sr20det with a garrett gt28rs and it is responsive too...

yer as every one has said to make a true 350rwhp on HKS GT2530 is a big ask. there really rated max around 320rwhp. most people see 270-280rwhp on 14psi on sr20 but yer comes down to other mods also. HKS GT2530 winds up early nice torque down low still pulls to red line but yes defiantly made for low to mid range performance. if u can make 320rwhp out of a gt2530 this setup would be perfect to drift and would be alot better preferred over something bigger and laggier even if u were running 350rwhp on it. HKS gt2530 on 320rwhp would be wicked but yer expect to run 18-22psi for a true figure on a none happy dyno!

Usually high hp means larger turbo means more lag. Just a compromise.

if your goal is a responsive engine then I wouldnt get too greedy with the power figure.

bonus with a lower power responsive engine is reliability. big power will always end up in broken bits sooner or later.

I know it's a bit left of field, but considered a twin-screw supercharger? Buckets of torque from idle and won't restrict your top end.

I know it's not something that most people do, but if you've got a bit of cash around it's something I would like to see somebody do.

u might wanna check out this thread

http://www.hardtuned.net/forums/index.php?showtopic=240419

we got a GT3071 to be just as responsive as a 2871

car makes 260rwkw with standard cams so picture wat it could do with a set of cams

I run a hks 25/30 on my rb20 it makes 320hp with no cams and standard internals talk to a good tuner i.e alex at gt auto or matty at pits and with the right supporting mods u should be able to hit 350hp my mate had a 2871r making same hp and he didn't hit full boost till 4000rpm where as i had full 18psi boost at 300rpm go the HKS 25/30 all the way the only down fall is it drops off in top end speed but ur building it for drifting anyways and the aftermarket cams should help that as well but best bet is go talk to a GOOD tuner key word being GOOD and they will help you do it right and get the most out of your mods

listen to this kid ^ ive had a hks 2540 on a stock internal, stock cams redtop sr20det, with a power fc, fuel system, n the usual mods, and it managed 300hp atw on 15psi, yes i think it will be pushing the hks 2530 but i still think its acheiable, and if the engine is going to be built i dont see why you cannot run 20psi threw it, with 20psi a very good tune and a set of cams, i dont see why you wouldnt be able to acheive close to the 350rwhp mark, if you want to keep respone but still get power u will need to run a smaller turbo and more boost if that makes sence. thats my opion anyway, you maswell get the smallest turbo you can that is capable to make your choosen HP, if you dont get a hks 2530 my next bet would defiently be the garrett 2871r which i have seen first hand make 411hp atw on 21psi on a stock internal sr20det all it had was a thicker headgasket and all the other supporting mods....thats just my 2cents

Just in case he's still looking for something 8 months later, hey guys? OP absent ITT since November last year.