LilCivic04

i recently built my d16z6 motor. it has

block:
darton sleeves
wiseco 9.1 compression pistons
scat rods

head:
crower valve springs
crower retainers
crower cams
port and polished head and intake manifold
rpm 68mm throttle body
arp headstuds
1mm larger intake valves


drive train:
clutchmaster stg3 racing clutch
unorthodox 7lb flywheel

well to get to the point, im planning to get a gt28rs turbo. what trim should i be aiming for? 48ar or a 63ar? im aiming towards the 63.. but when do you guys think i should hit full boost for either trim? which one is better for my setup.


Modified by LilCivic04 at 9:24 PM 9/7/2005


Modified by LilCivic04 at 9:24 PM 9/7/2005

SikofFalln

I'll be the first to say.....


WRong Forum!

Try the forced induction forum

BlueShadow

Can you even get the GT28RS with a 0.48 ar turbine? I thought it was just 0.63 or 0.82 for the T3 turbine housing or 0.64 or 0.86 for the T25 turbine housing.

portenio78

iTrader: (1)

bump

beerbongskickass

Go for the biggest trim you can get. I'm sure it will spool fine. I would go with a bigger turbo myself (at least a gt30r), but then again I would want like 400+ horsepower if I had a built motor.

a1320addict

iTrader: (1)

to each his own...

with yur motor setup...id go with the .82 a/r "t3 drop in" gt28rs...should make some very nice power...and be nasty on the street

BlueShadow

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yehiknowrite &raquo;</TD></TR><TR><TD CLASS="quote">to each his own...

with yur motor setup...id go with the .82 a/r "t3 drop in" gt28rs...should make some very nice power...and be nasty on the street </TD></TR></TABLE>

Yah, but then he would have to get an external WG too. If he hasn't bought a manifold yet I say get the GT28RS with the T25 housing and internal WG. Then he can get a manifold that can mate up right to the T25 turbine.

boosted92

Trim and A/R are not anything the same, so don't confuse them.

beerbongskickass

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueShadow &raquo;</TD></TR><TR><TD CLASS="quote">Yah, but then he would have to get an external WG too. If he hasn't bought a manifold yet I say get the GT28RS with the T25 housing and internal WG. Then he can get a manifold that can mate up right to the T25 turbine.</TD></TR></TABLE>

Internal wastegates are peices of ****!

Do yourself a favor and get a good tial wastegate, it's defintely worth it.

LilCivic04

**** i posted in the wrong forum... i thought it was forced induction... lol.

well i have a turbonetics t3/t4 turbo w/ a drag manifold. yes internal wastegate are ****, i have a tial 38mm wastegate. i forgot the specs of my turbo but it doesn't seem just fast enough for me. should i go gt28rs or gt30r like the other guy says. i am planning to get on wit the t3 housing, so it would drop into my manifold. but i was thinking if i got the either one of the turbos, would the dowmpipe line up the the housing or do i have to get another custom downpipe?

a1320addict

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yehiknowrite &raquo;</TD></TR><TR><TD CLASS="quote">to each his own...

with yur motor setup...id go with the .82 a/r "t3 drop in" gt28rs...should make some very nice power...and be nasty on the street </TD></TR></TABLE>

the .82 t3 drop in from atp...when ordered you can have the internal assembly removed...

BlueShadow

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LilCivic04 &raquo;</TD></TR><TR><TD CLASS="quote">**** i posted in the wrong forum... i thought it was forced induction... lol.

well i have a turbonetics t3/t4 turbo w/ a drag manifold. yes internal wastegate are ****, i have a tial 38mm wastegate. i forgot the specs of my turbo but it doesn't seem just fast enough for me. should i go gt28rs or gt30r like the other guy says. i am planning to get on wit the t3 housing, so it would drop into my manifold. but i was thinking if i got the either one of the turbos, would the dowmpipe line up the the housing or do i have to get another custom downpipe?</TD></TR></TABLE>

Well if you already have the DRAG manifold and TIAL then I would say yes get the GT28RS with the T3 housing. I was just suggesting it as another option. Have you considered the GT2871R? going from ma 28RS to a 30R seems like a big leap. The GT2871R would be slightly better then the 28RS cause it still has the same hot side as the 28RS, but it has a slightly bigger compressor.

LilCivic04

well should i go with 64 a/r or 86 a/r? looking at the gt30r, it seems a bit big to me. either gt28rs or gt2871r. when should i hit full boost either either turbos?

LilCivic04

ttt

portenio78

iTrader: (1)

What about the t3/t04e 57 trim with 48 A/R...and if you want a little more go with the 63 A/R. Hhhhmmmm

portenio78

iTrader: (1)

Also the gt28rs is lonly good for 320whp from what I have read. Wouldnt you want to hit like 400 if you motor is built? 300whp is gonna get boring after a while and you'll want 400....which you can do, so save your self the hassle of having to keep buying turbos when you want more.

LilCivic04

no i want a gt28 turbo but dno what ar is the best for mines. just want everyones advise

ef92b

with your setup, i'll go for GT2871R with .63 A/R. i came across several posts recently and mostly they claim that with this turbo, the .82 does not make that much difference with the .63 A/R's.

read what the VW people say about the disco potato.

http://forums.vwvortex.com/zerothread?id=1551694

also, you need a new DP since the T3-style GT2871R turbine housings come only with 5-bolt pattern.

well, it depends after all what would be your power goals. if lag if not that of much issue to you and 400HP down the road you think later is not sufficient, then go with the GT30R since you already have a sleeved block.

LilCivic04

i do have the 5bolt pattern down pipe, but what im saying is that does this turbo housing sit at the same height as my t3/t4, so i could directly line up the downpipe to the exhaust housing and bolt them up. or does this sit higher or lower.. which means new downpipe..

ef92b

good point there. but i don't have any idea how that thing goes, i mean if it would align perfectly. i thought you're building a fresh setup from scratch that's why. well, save up a bit for that extra cash on a new DP just in case

well, this is always what we pay for on a custom pieced setup

goodluck on ur project man , another D ninja on the block

LilCivic04

its just that this t3/t4 turbo spoolin isn't just working out for me. you know what i mean?

ef92b

EF civic hatch, stock d16z6, gt28rs, neptune, 258whp/218tq by J. Evans

TheShodan

iTrader: (14)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LilCivic04 &raquo;</TD></TR><TR><TD CLASS="quote">i do have the 5bolt pattern down pipe, but what im saying is that does this turbo housing sit at the same height as my t3/t4, so i could directly line up the downpipe to the exhaust housing and bolt them up. or does this sit higher or lower.. which means new downpipe..</TD></TR></TABLE>


I'm so sorry that you're getting so many conflicting opinions and experience. No disrespect to anyone here, but there are just too many cooks in the kitchen just to make a bowl of cereal.

Let's look at a couple of things.

1st. LilCivic04. Perhaps why its rather confusing for everyone to help you out is because you're not being very specific at all in terms of not only the POWER that you're looking for but they type of response that you're needing in this setup. Don't confuse "spool up" directly w/ response only. They assist one another but not neccessarily go together.

2nd. I think you're also a bit confused about Trim and A/R housings. I'll give you the quick version for the A/R housings are relative to the flanged exhaust inlets that they use, not an OVERAL sizing. so in other words, a .86A/R in a T2 configuration is not larger than a .82A/R in a T3 configuration.

T3 Flanged exhaust housings 4bolt/5bolt = .48A/R, .63A/R, .82A/R are choices.

T2 Flanged Exhaust Housings (Standard T25 downpipe flange configuration only) = .64A/R , .86A/R are the main 2 but there are .68A/R in a T2 flange configuration as well.

When the ATP uses a drop-in, it converts a normally standard .86A/R that was T2 flanged (inlet) into one that fits a .63A/R T3 flanged housing.

3rd. You want to make the best housing configuration to fit the best combination. Not just switch housings to extract peak power. In some instances it works, however, this is not usual. There are both T3/T04B and E configurations that can perform very well compared to the GT2871. If the housing and flapper are fine, there is nothing wrong w/ an internal gate system on these applications. For years I've had to deal with that misinformation, and though the external gate is fine, many internal gates do just as well in some instances..

When trying to get Everyone's advice, be careful, bandwagoning can occur.

LilCivic04

what rpm range does the gt28rs stops making power? i'd like it to make power atleast up to 8k rpm

GPNY

I would recommend that you go over to http://www.boosted-hybrid.com (AKA http://www.evans-tuning.com) to research the GT28RS. Jeff Evans has tuned many GT28RS turbos and strongly recommends them.

This is a PM he sent me concerning the GT28RS ATP T3 housing:

"You should go with the .82a/r housing to be honest. I tuned a built d-series about a month ago that made 300whp with a gt28rs with the drop in housing with the .82a/r trime and still had amazing spool time. "

My setup is sleeved 77mm d16y8/z6, JE pistons (9.8-10:1 comp), AEM rods,... Looking for 275-300whp.