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Fris75turbo · Post by **Fris75turbo** » Wed Jul 18, 2007 8:15 am

I plan to change original Garrett on my 75 turbo.
Right now, my options are Garrett TB036 (Alfa Q4, Delta Integrale, Fiat Coupe...) and Mitsubishi TD05H (Alfa 164 '91, Lancer EVO VII, Impreza...).

Suggestion? Hybrid potential? Power?

Thanks!

p.s.- Mats, you use TD04 from Volvo T5, right?

Mats · Post by **Mats** » Wed Jul 18, 2007 10:30 am

Used, yes. The car is gone now.

I'd go for the Mitsu unit any day of the week.

Greg Gordon · Post by **Greg Gordon** » Wed Jul 18, 2007 4:47 pm

Mats, will you please tell us more?

Mats · Post by **Mats** » Wed Jul 18, 2007 11:11 pm

Garrett T3 is Jurassic and I try to avoid it at all cost. That's the main reason.

Fris75turbo · Post by **Fris75turbo** » Thu Jul 19, 2007 6:19 am

Mats wrote:Garrett T3 is Jurassic

Mats, can you tell me please, what's happened with performance when you are put Mitsu in place of T3? Your ECU was stock, right?

Mats · Post by **Mats** » Thu Jul 19, 2007 10:34 am

Stock ECU, stock fuel pressure.
Reached max boost quicker and it didn't run out of breath at 5k like the T3 unit.

Much more pleasant to drive when the torque curve wasn't like on a diesel engine.

Fris75turbo · Post by **Fris75turbo** » Thu Jul 19, 2007 12:53 pm

Cool!

Tell me something more... i hope so that i'm not bother you.

You are set max.press. at standard 0,65bar? Sorry if my question sound stupid

... but... bigger turbo give you more air, right. Isn't that means that you need more fuel?

How standard ECU react on that?

Mats · Post by **Mats** » Thu Jul 19, 2007 1:38 pm

I had it at 0.7, it had a small turbine and wastegate though so it kinda crept up to 0.9 at redline.
It needs more fuel, yes, but the flap measures the higher mass flow and compensate pretty well. Untill the injectors hits 100% that is.

x-rad · Post by **x-rad** » Thu Jul 19, 2007 2:08 pm

I had T3/T4 combo...spooled at 2500rpm pulled strong to 7000rpm water and oil cooled, full bearings, external wastegate

This was run RED HOT a few times and never any problems, easily made 18 lbs boost, ran always at 12-15

This is a durable strong unit...just need to spend time with correct compressor/turbine combos for best outcome

Mats · Post by **Mats** » Thu Jul 19, 2007 10:50 pm

The Mitsu I had was run yellow-hot (which we all know is much hotter then Red-hot

) on it's first outing and several times later without problems at all.
If you can play around with housings sure, then the T3 can be quite good but often that is not the case and the std unit from the Deltas and such is crap quite frankly.

x-rad · Post by **x-rad** » Fri Jul 20, 2007 2:14 pm

No,I was wrong, it was more WHITE HOT/DAVES INSANITY SAUCE HOT, which we all know is really the HOTTEST

Anyway, 2000cc dynoed at ~320+ at wheels, mild cams 8:1cmp, oversized injectors, Haltech, crane ignit...etc

Plus you can get all sorts of boost maps for almost every garrett wheel...makes tuning a little easier...

MD · Post by MD » Sat Jul 21, 2007 12:36 am

Hey guess what guys ? Here is Oz we got stuff that goes WAY beyond red hot, yellow hot, or chilli hot and rings out all the way to sheit hot. Works on just half a bar. Amazing, you just wouldn't believe it...

awww, come on now, what's a good sheit joke between friend ?? Priceless !!

x-rad · Post by **x-rad** » Sat Jul 21, 2007 9:07 am

that joke stinks even on this side of the equator!

GarthW · Post by **GarthW** » Sun Jul 29, 2007 3:43 pm

Theres a guy here in the alfa club who is putting a GT2871R on his 2.5 V6, i said i think there for 4 cylinders, what you guys think? They seem to be on nissans and other jap cars...

I thought a GT30 would be better?

Nikoror · Post by **Nikoror** » Mon Jul 30, 2007 11:20 am

maybe he doesn't want a car for going in a straight line a quarter mile at a time. a gt28 for 2.5 liters is quite reasonable.

1.8 Turbo tuning...