actuators for hks gt2510

[TURBOKONGEN]

I am putting on a set of HKS gt2510 turbos , but I got them without the actuators .
Can I use the actuators from the orig. r32 gtr turbos ?
I am going eventually to boost them somewhere between 1.3-1.5 bar boost with a HKS evc boost controller .
Will they manage to hold that kind og boost , or do I have to get a different set ? I have a set of HKS gt2530 turbos also with actuators lying around .

[greek r34]

i got a set of bigger turbos 2530 and are fiting 2510?

[MikeR33]

I would fit the 2530's if they are lying around, you won't regret it

As for the actuators they should be fine to run 1.3-1.5 bar with a boost controller, I can get a stable 1.6bar on my old factory actuators on 2530's.

Cheers,
Mike

[TURBOKONGEN]

I am putting on the GT2510 turbos , so I can get better lowend torque .
And I am wondering what kind og power I can get from the 2510 .
If I can get anything from 470-500whp I am satisfied .
Where I live , there is basically no place to drive faster than 70mph , and driving fast on public roads here , will send me right in jail and 2-4 years without my drivers lisence . Our speed limit on highways is only 55mph , and anything over aprox. 85mph will give me jailtime and at least 15months without a lisence . And I will have to take the written and driving test to get my lisence back . Norway is a GREAT country to live in if you like fast cars ....... Oh I forgot to mention that just getting plates in my R32 will cost me around £10 000-12 000 in various taxes etc. .

[greek r34]

whant to trade the gt2530 , with nismo r1 turbos 500hp on 1,1boost

[MikeR33]

Hi,

I don't think you'll get 470+ whp from the 2510's, I would think a max of about 420-450whp. On the 2530's I wouldn't think 470-500whp is easy either as they are a max of about 600bhp at the flywheel I think.

As for low down torque I get more power off boost than my stock setup (much less back pressure from larger turbines) and they only spool marginally slower than the stock turbos. (can accelerate from 1000rpm in 5th since 2530's fitted, on the stock ones it wouldn't do that)

Mike

[TURBOKONGEN]

We will see .
We have managed to get pretty decent power out of other projects......
I am more interested in torque ,so I can sacrifice some hp for better lowend torque .
I have ported cyl head/throttles/intake/manifolds/turbos ,2.8 kit, stage 2 cams,valve springs etc. , hks ex manifolds/outlet/dp ,etc etc.... .
This might help a little . I have seen over 300whp on ca18det and sr20det with ported T28/T28BB with the same size turbine outlets/wheels as the 2510 turbos . Actually they are VERY similar to the T28BB(also called gt28r .64ar) .
My friens car with similar mods worked fine .

[TURBOKONGEN]

Got it started up yesterday .
Runs fine with the GT2510 turbos . As it is mapped for standard R32 turbos with steel internals , I only ran it at .7bar boost .
It comes in nicely at around 3000rpm , and really gets going at 4000rpm .
I could not really thrash it as it was only running RWD and not 4WD(could not find the fuse for it at the time) , so it was breaking loose on the first 3 gears .
The standard MAF`s were maxed at .7bar . Is this usual ?
I guess I will have to install the Z32 MAF`s now .
I am aiming at running 1-3-1.4 bar boost when it gets decently mapped .

By the way . A friend of mine just got his R33 with GTSS turbos mapped at Bjornstad bil , that have the same type dyno as Abbey , and they managed to get a little over 500hp at the hubs .
Surely the GT2510 are rated a tad higher in hp than the GTSS ?

[polarbearit]

Nope - Don't think that 2510's produce any more power than GTSS turbos and having driven similar spec cars with both types of Turbo's fitted I expect you'll probably find the 2510's a fair bit laggier than your friends car with GTSS's, infact I'd expect that 2530's probably won't be much different lag wise compared with 2510's (And produce more top end power)!

[Ajax]

Bear in mind that as Pikey very usefully pointed out yesterday on here, if you go the Z32 MAF option, you may have to spend alot of cash on new Apexi filters to fit them as their obviously bigger. Maybe better off getting Nismo MAF's as their the same size as standard and you can use your existing filters.

[TURBOKONGEN]

I would think the GTSS have a quicker spoolup than the GT2510 .
The spoolup I have now is fine for me . I am not really very interested in lots of torque under 3000rpm anyway . I am used to using the gears a lot , and like the challenge of driving with a little lag .
I really can not understand why the GT2530 should be as fast spooling as the 2510 . The turbine wheels and outlets are 47mm on the 2530 versus 41.7mm on the GT2510 . The GT2510 are very similar to the GT28R turbo , and those are very quick spooling . Anyway , if I can manage 500hk on the hubs/whp I will be more than satisfied .
So if my friend manages over 500hp ath with a lower spec engine than mine . I really can not understand why I should get less than his car .
But time will tell .

Hmm....are the Z32 MAFS bigger ? Do they have bigger housings ?
They look exactly the same , but I have not looked closely at them .
The z32 are around 3" . Are the orig. ones smaller than that ?

[Peter]

2510s are hardly any laggier than stock turbos, had them on my car for 2+ years. My 2535s are laggier than the 2510s unsurprisingly but not that much, they are certainly perfectly acceptable for a road car and on track, well I guess TOTB4 proved the point that the response from smaller turbos on a tight circuit will see off the mega powered monster turbo'd cars anyway.

[TURBOKONGEN]

Well they don`t feel laggier than the R32 turbos with steel internals .
Maybe a tiny bit laggier , but not much .
We only have a few tracks in Norway , and none of them are fast (except one up north..about 3 days driving to get there ....) . About 110-120 mph is the highest speed you can get on the tracks, so I would rather have good response instead of a little more power .
I can alway put on the 2530`s later if I am not satisfied with the 2510`s .

[TURBOKONGEN]

Is it usual that the OEM MAFS max out at only .7 bar boost with the GT2510 turbos ? They are maxing out at about 6000rpm with only .7 bar boost .
I thought they should be able to cope with this .
I will be putting on Z32 MAFS soon , but I really did not think this would be a problem at A MEASLY .7 bar boost .

[chris singleton]

My car managed 475BHP at the wheels yesterday on 2510's