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GT28 for CA18
Posted: Mon Apr 11, 2011 9:53 pm
by arno
Hi Guys,
I purchased a GT28 for my s13 CA18, will I have lag?
The difference on the compresion wheel looks scary.
I think the standard weel is 48mm and the gt28 is 54mm
I spoke to couple of guys and they said it will be fine. The guy from mr. turbo said it will be fine. Would I also have to dyno it again.
Your help would be much appareciated.
Thank you!
Posted: Mon Apr 11, 2011 10:00 pm
by aep886
it a good upgrade~! no need to dyno~!
Posted: Mon Apr 11, 2011 10:10 pm
by arno
aep886 wrote:it a good upgrade~! no need to dyno~!
thanx - will I feel a difference and what boost can one run with pump feul?
Posted: Mon Apr 11, 2011 10:16 pm
by aep886
have you got a adjustable actuator?
mine GT28R from S15 with HKS actuator on the SR20det gives me 1,5bar ... but i am going to turn it down to 1,2bar
Posted: Mon Apr 11, 2011 10:23 pm
by arno
aep886 wrote:have you got a adjustable actuator?
mine GT28R from S15 with HKS actuator on the SR20det gives me 1,5bar ... but i am going to turn it down to 1,2bar
Yes it is adjustable.
Posted: Tue Apr 12, 2011 4:58 pm
by Grobblere
i have the T28 on at stock boost, and it feels perfect to me,, the boost comes in early already.
For daily the T28 seems to be to be a good choice. Max ill take it would be .8 when i have all the supporting mods...
If im settled ill just put on the T3/4
Posted: Tue Apr 12, 2011 5:26 pm
by arno
Grobblere wrote:i have the T28 on at stock boost, and it feels perfect to me,, the boost comes in early already.
For daily the T28 seems to be to be a good choice. Max ill take it would be .8 when i have all the supporting mods...
If im settled ill just put on the T3/4
The GT28 I purchased has a T4 compresion wheel. 54mm AND THE STOCK ONE HAS 48mm
Posted: Wed Apr 13, 2011 9:53 am
by arno
I have Started to fit the GT28.......very close fit indeed, the compresion housing is so much bigger! it clears the exhaust manifold by 1 or 2MM's
I will have to modify the acuator mounting bracket as well. not as easy as it seemed. still woried about lag...
Posted: Wed Apr 13, 2011 10:05 am
by arno
Posted: Wed Apr 13, 2011 10:08 am
by arno
Posted: Wed Apr 13, 2011 11:11 am
by aep886
you cant link pic from facebook^^
Posted: Thu Apr 14, 2011 9:15 am
by arno
aep886 wrote:it a good upgrade~! no need to dyno~!
spoke to some guys, the said I will have to dyno again
Posted: Fri Apr 15, 2011 8:53 am
by djtreble
You will only have to dyno it if your run different boost. I ran a T28 on a CA at standard boost for a while before I could fit a stage 2 map and supporting mods.
Posted: Fri Apr 15, 2011 9:40 am
by arno
djtreble wrote:You will only have to dyno it if your run different boost. I ran a T28 on a CA at standard boost for a while before I could fit a stage 2 map and supporting mods.
Apparently the GT28 is bigger than the T28, Some even said I will have to put in bigger injectors. I want to run 0.7 / 0.8 bar boost. I think I should finish fitting it and take it for a drive. I'm running go-tech pro management.
paste this link into your browser and see if you can check the pic of the old vs new compresion wheel.
http://www.facebook.com/photo.php?fbid= ... =728244303
Posted: Fri Apr 15, 2011 7:54 pm
by djtreble
Oh wait hold on, I thought you were talking about the T28...can you give me the full Garrett code for it (eg. GT2871R)