GTR Forum banner

21 - 40 of 42 Posts

·
Registered
Joined
·
2,463 Posts
he then added that the -10's are way ahead in terms of design & if i was to consider a single to go with the gt3540 (much newer design) as it doesnt use the t4 flange which limits u to only the t04z.
GT3582R has a TS T4 flange option, GT4088R, GT4094R, GT4294R, Borg Warner S3xx series etc are all T4 TwinScroll :p
 

·
Registered
Joined
·
771 Posts
Discussion Starter #22
GT3582R has a TS T4 flange option, GT4088R, GT4094R, GT4294R, Borg Warner S3xx series etc are all T4 TwinScroll :p
and i guess the other valid pt is how often would u change a turbo once u have achieved your goal, unless u keep raising the bar.

i always look at both sides of the fence
 

·
Registered
Joined
·
2,463 Posts
One thing I have noticed is I've almost never seen someone change a turbo due to it being too laggy, but I've seen people frequently upgrade....
 

·
Registered
Joined
·
72 Posts
Look some more then mate, there's a few on SAU that have gone to smaller turbos (backwards in some people's opinions) and have lower lap times as a result :)
 

·
Registered
Joined
·
2,463 Posts
Look some more then mate, there's a few on SAU that have gone to smaller turbos (backwards in some people's opinions) and have lower lap times as a result :)
Smaller turbos are easier to drive.... people with NA Hondas often go quicker than Skylines around tracks too - is it because they are a better performer, or that you have to work a bit harder to tame something more aggressive?
 

·
Registered
Joined
·
72 Posts
Its the same reason dirtgarage couldnt match his times with the single setup after the twins (too aggressive once hard up it for the rent), as you've hinted towards - more linear torque and power delivery is the key to a great driving car :)

.....IMO of course ;)

Sorry none of this helps Marko make a choice though.
 

·
Registered
Joined
·
771 Posts
Discussion Starter #27
actually all this info does help me steve :)

those gtrs's on dirtgarages car gave him a 9 sec pass (was it a low 9?)
with his t51r was it a flat 10 which was his best to date?
 

·
Registered
Joined
·
2,750 Posts
Its the same reason dirtgarage couldnt match his times with the single setup after the twins (too aggressive once hard up it for the rent), as you've hinted towards - more linear torque and power delivery is the key to a great driving car :)

.....IMO of course ;)

Sorry none of this helps Marko make a choice though.

That is EXACTLY the way i think too....which is why the -10s suit me far better than i think the -5s ever could.
 

·
Registered
Joined
·
798 Posts
-10s rated for 880bhp..??!as far as i know there rated for 800 ps.... 789bhp!i know for certain that the hks gt-rs are rated for 400ps each and the two turbos are very similer..iv never heard off anybody in the uk or ireland that has got much more than 700bhp out of -10s..!im sure they are a sweet kit on a rb30 but not 880bhp sweet! 880bhp is MASSIVE power..ridiculas.. T51R kai kinda power
 

·
Registered
Joined
·
3,352 Posts
The HKS GTRS's make more power than their Garrett counterparts. I think about 100+bhp combined as a pair?
 

·
Registered
Joined
·
771 Posts
Discussion Starter #31
here is the direct link to the garrett website, the -10's are rated up to 460hp each (obviously we're talking flywheel figures):
TurboByGarrett.com - Catalog

there is a member on SAU who made 832hp (i.e. 620kw) with -10's on an engine dyno!
it was an rb32 setup so maybe the additional 200cc was a catalyst for the high figure
 

·
Registered
Joined
·
2,463 Posts
The HKS GTRS's make more power than their Garrett counterparts. I think about 100+bhp combined as a pair?
Where have you heard that, or has it been proven? Its a bit strange given its one of those cases where the Garrett version has the same wheels - as opposed to being "equivalent".
 

·
Registered
Joined
·
4,429 Posts
i am building an rb26/30dett for my r32gtr & my original thoughts were to go with low mount Garrett -10's (in fact i have purchased my -10's BUT i can always sell them if need be).
im aiming for 400+awkw but i want it to be streetable with nice midrange & torque (minimal lag).
The rs's will respond quicker.
low 400's ez and instantanious power
How much quicker is just going to cause more arguments.
As you ready own the 10's, stick them on.
 

·
Registered
Joined
·
771 Posts
Discussion Starter #34
ive come to that decision as well amongst other reasons such as i wont get as much attention from the police if the engine has low mounts

The rs's will respond quicker.
low 400's ez and instantanious power
How much quicker is just going to cause more arguments.
As you ready own the 10's, stick them on.
 

·
Registered
Joined
·
798 Posts
ive come to that decision as well amongst other reasons such as i wont get as much attention from the police if the engine has low mounts
good point..!and as glenn said you already have them so stick them on..however i wouldnt be expecting the 460 bhp each!!garrett tend to exadurate in my experience..the -10 is almost identical to the gt-rs..i had a hks gt-rs on my old car midnight purple 180sx with an sr20 engine..it had a forged bottom end,580cc injectors, step 1 one hks 264 cams and pulleys,power fc d-jetro etc..i had 363bhp at fly with 332ftlbs torque at 1.3bar dynapack..it lost power when we tryed 1.5 bar strangly..theres no way a gt-rs/-10/2871r would pull 460bhp..thats more like 3037s teritory! saying that who cares about figures after all tho..!my 180sx was animal quick constantly spining wheels..2 of these turbos with an rb30 and your car will be terrifyingly fast!!:smokin::smokin:
 

·
Registered
Joined
·
1,980 Posts
i wouldnt be expecting the 460 bhp each!!garrett tend to exadurate in my experience..the -10 is almost identical to the gt-rs..i had a hks gt-rs on my old car midnight purple 180sx with an sr20 engine..it had a forged bottom end,580cc injectors, step 1 one hks 264 cams and pulleys,power fc d-jetro etc..i had 363bhp at fly with 332ftlbs torque at 1.3bar dynapack..it lost power when we tryed 1.5 bar strangly..theres no way a gt-rs/-10/2871r would pull 460bhp..thats more like 3037s teritory!
There was a 200SX on SXOC with a CA18DET which managed 396bhp at the fly at 1.7 bar with the non-GT-R fit version of the 2871R with the same size housings and wheels.
I'm sure we've already covered this on another thread but the 460bhp Garrett are quoting would be at similar boost pressure (1.5 to 1.7 bar) with the optional .86 ar exhaust housing. You won't see 2 x 460bhp though, never works out that way as people have mentioned and also the optional exhaust housing has the non-GT-R outlet stud pattern so the dump pipes won't bolt on.

there is a member on SAU who made 832hp (i.e. 620kw) with -10's on an engine dyno!
it was an rb32 setup so maybe the additional 200cc was a catalyst for the high figure
Thats the most I've heard of from these by quite a long way. I've heard of OSG RB30's with 730 to 740bhp on HKS GT-RS's at 1.9 bar.
Do you know what ar turbine housings were used ? Had they gone for the .86's rather than the standard .64's ? I would have thought the .64 housings would prevent it from getting up to those sorts of power levels.
 

·
Registered
Joined
·
771 Posts
Discussion Starter #37
Where have you heard that, or has it been proven? Its a bit strange given its one of those cases where the Garrett version has the same wheels - as opposed to being "equivalent".
funny that,i asked my turbo specialist the exact question and his response:

"well i can sell u gtrs's if u want to pay double for hks branding, those japs are savvy as they are the same units"
 

·
Registered
Joined
·
4,429 Posts
im aiming for 400+awkw but i want it to be streetable with nice midrange & torque (minimal lag).
Once again Ill redirect you to the first question.
Its erelevant how much ultimate power they make as you on require 300 something hp each , which they will make for ever and never even break a sweat.
Everything I can relay to you is pretty much 2860r-5 vs 2530's , which has been proven time and time again , that the HKS exact same on paper as the garret still makes more power ........
So I would guess the Real GTrs's would be the same , but we are talking pretty smallish power figures anyway ....
I doubt they would blow anything like 920hp
not on pump gas anyway .
 

·
Registered
Joined
·
2,463 Posts
Everything I can relay to you is pretty much 2860r-5 vs 2530's , which has been proven time and time again , that the HKS exact same on paper as the garret still makes more power ........
So I would guess the Real GTrs's would be the same
Nah not the same thing, the GT2530s use a more aggressive compressor wheel than the -5s - the -5s are an "equivalent" where as the GT-RS and GT2871R are basically the same thing.
 
21 - 40 of 42 Posts
Top