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Wastegate Selection For Gt3076r

trent26

By trent26,
in Engines & Forced Induction

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R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Oh they have a 45mm again?

Last time i checked (admittadly a while ago) they stopped making the 45mm ones and went to 48mm or something like that.

Going back 6 yrs now mine was a 45mm progate - so the 45mm item should be perfectly fine

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Make sure you get extra springs.

I remember when mine came it only had a 10psi spring combo in the box

I needed to get extra springs ordered in to get it holding 16-17psi consistently :cool:

Given you want the gate to set as close to the desired boost as possible etc. Less change of gate creep which i had using a 7psi spring (and trying to run 17psi lol).

Soon as the springs were changed out it was all spot on.

GTScotT Grand Master

GTScotT

Posted
Posted
Turbosmart 48mm would be a good choice, or anything around the 45-48mm marker.

Same as what i ran with a GT3040 (550-600hp)

Out of curiosity what did you make RWKW from that setup

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

270rwkw @ 16-17psi

369rwkw @ 24psi (sunoco104, i could run approx 8-10 degrees extra timing across the entire map, venting gate etc)

The 3" exhaust i had @ the time was terrible and holding it back on PULP with the gate plumbed in as well :/

Wish i had the exhaust i have now. Would have seen around 300-320rwkw on 20-22psi, perhaps even a tad more as it made 250rwkw @ 1bar.

Given we have E85 around, you could probably add another 40rwkw to whatever figure as well. Would have been interesting :cool:

GTScotT Grand Master

GTScotT

Posted
Posted

Nice, definitely interesting results.

Although I am far from an E85 fan boy, but I am one of few and as we know majority rules :cool: So ill can it right the

Similar to you, exhaust is my current dilemma. I dont want to change away from what I have although have intention to lean as hard as I can on a fairly basic setup. I want to set a reference point for the turbo really.. Unit is an off the shelf 3037, .87 rear, 80mm surge cover.

I see you refer to your results often, although have been yet to find them in the dyno threads. Thanks for sharing.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Never got a chance to upload the 369rwkw run as that was from Autosalon & never got a print out (you can see it on youtube tho)

The 270rwkw run i think i have a sheet for somewhere. I'll have a look. Was what... 5yrs ago now so not entirely sure! :cool:

Sorry for hijackings :/

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