What size turbocharger is right for me??

[240dx]

Im debating on which turbo would work best for me? Im looking for a fun and torquey daily driver car. Im more interested in low end power with a decent spool time and minimal lag. Im looking to keep the majors internals stock and boost around 6-8psi. I plan to swap injectors and add a quality FMU.

Which size turbo do you guys think would work best for me?

Thanks in advance

[zo0d]

T25/T28 from an sr20

[MySXisSlowerThanUrs]

Gt47-88

[LeroyBrown]

GT28

[Tyler]

t3 with a .48 hotside, full boost on a ka around 3k rpms

[elvis240sx]

Torquey, low-end power? N/A sounds about right. How bout a Harley?

[gingerbredman]

can't...stop..trippin...out over... 70's dude wiggin out in mysxisslowerthanurs sig!!!

i say T-28, hell a t-25 would be spooled up at idle practically

[xX RB Xx]

gt2871r

[turbo2nr]

2871r

+1 this man speaks the truth

[wynnEZ]

t-28

[gingerbredman]

http://www.youtube.com/watch?v=FQkiapklSiI

BWAHAHAHAHA!!! sry..had to

[240dx]

I can get a used but excellent condition Garrett t3/t4 hybrid for $480. Is this worth it. Also would it be too much for what im looking for??

[r34 gtr]

Holset HX35.

or

TD06H 20G

[ca18detgabby]

sounds like a build that will last a few weeks........ might as well use an SR T25, that way when you nuke the motor, you still have money left over to rebuild it.

[Logan76]

Dont got with an FMU for gods sake, get ATLEAST fuel pump + inj + tune...

What motor?

Im going to say T3 super 60 with a .48 a/r, GT2871R, or EvoIII Big 16G if you dont mind welding a DSM flange onto whatever manifold your working with.

[xX RB Xx]

20g or go home

[480sx]

FMU's are great for 8 psi and under.

A t2 setup is the cheapest you will get and offers the type of spool up characteristics that you desire. A T25 however chokes the ka at higher rpms.

Your best option if money is not an issue is a t3/t4 50 trim .48 ar turbo. Super 60 is a good option to for a budget turbo.

The 20g Greddy internally gated turbo is retarded. They put a t25 size wastegate on a monster of a turbo. Usually starts boost spiking and creeping past 8-9 psi on a free flowing system. Weld the WG shut, use it as an external then your alright.
Modified by 480sx at 9:14 PM 2/2/2009

[Logan76]

that greddy 20G doesnt flow as much as a T3/t4 50 trim with a . 64 AR. and the 50 trim could probably be had for less dough. I dont like FMU's, I personally would just rather have a tune.

[SX APPEAL]

A GT2871R? You think someone who's leaving the internals stock and only boosting 8 psi is gonna drop a grand on a turbo? Not to mention even with a 48 trim compressor its still never gonna hit its peak efficiency rage at 8 psi (~1.5 pressure ratio)

[Logan76]

You have to leave some room for improvement, everyone gets bitten by the boost bug, and eventually hes going to want to run more than 8lbs, lets be logical here. Face it, the GT2871R is a smaller framed turbo and would be more effeicient at 8lbs than a 60-1,SC61 or GT35R etc, he would also have a much broader powerband with the GT2871R than any of those larger T3/T4 turbos because of the much faster spool up time...

[480sx]

A t3/t4 50 trim .48 ar has as good if not better response on a Ka than a t28. Its good till high 300 hp with the .48 housing. It also wont choke your motor out nearly as bad as a t25, or any t2 turbo.

The only reason to go with a t2 flange is if your doing a budget SSAC bottom mount build. Otherwise, t3 flange for a ka is the only way to fly.

[240dx]

Thanks for all your replies

would a garrett T3/4 Hybrid with a 60 trim compressor work well for what im looking for. I found a used one for 450$ CND w/ no shaft play

[480sx]

50 trim is really the ideal compressor wheel for the hybrid turbo. It sports a pretty amazing compressor map. 60 trim is fine though.

What size exhaust housing is on the turbo your looking at? That is very important for spool up, among other things.

[Logan76]

yeah, your going to want a .48 a/r exhaust housing.

[240dx]

The exhaust housing is .64

What kind of low end results can i expect from this turbo??

[Logan76]

meh, I would get it for sure. when I bought my turbo for my KA it was a 50 trim with a .64 a/r but for my civic im buying an sc61, its all in personal preferance and how far you want to get into it.

[240dx]

Alright, just to wrap up this helpful thread

Garrett t3/t4 hybrid 60 trim .64 exhaust housing. Is this good for around 260hp. Or is it too much and get a t28?

Could anyone estimate Spool time RPM??

Thanks for all your help

[480sx]

Telling ya man, go with a 50 trim. The 60 trim has a much smaller window of efficiency, and not really many benefits.

That turbo would be slightly laggier than the 50 trim and offer only slightly better top end, which your not interested in.

As far as an estimated spool time, with the .48 on a 50 trim t3/t4 youv pretty much got a nearly instant boost car. You will hit 8 psi by 3000 rpms almost for sure, probably much sooner. It really all depends on your setup.

The .63 is the best all around turbine housing for the Ka. It will allow you to push that compressor near its limits without having your drive pressure get out of ideal spec. However, since your concerned with spool up and only want a low boost DD, go with a .48 housing.

[WDRacing]

I've personally had the T3/TO4E in 50 trim with the .63 AR hotside, it didn't have what I considered lag. I drove my buddies 240, same exact turbo but with the .48AR hotside and I could barely drive it. It was in boost all the time, made 1st gear useless. Granted, we weren't running 8 psi we were running 18-20. But the spool was almost instant with the .48

No need to get the 60trim...at all.

WD

[lbkidsr20]

Gt47-88

**** yea