4AGTE Build Specs

[ToySprinta]

I think the low boost/high power is because of the cams giving such high flow, and this would also explain the high boost point too.
We are going to try and close the duration up with cam gears but if that doesnt work, i might have to go to less agressive cams. I'd much rather have the response than power.
The plan was to run 20psi but when it ran up 180 on the dyno, we left it at that for testing.

[fixeruperer]

what spec are your cams @ .50 ?

[ToySprinta]

Dont know sorry

[PuGZoR]

Sorry to dig up an old thread, but just wanted to pose a question again, and didn't really want to make a new thread.

Anyway, I've got a AE101 GZE block and head, Cometic metal headgasket, ARP headstuds, 440cc injectors, Microtech LT10S, AJPS T25 flanged turbo manifold with external 38mm wastegate, and lines to suit a T25/T28. I want a turbo that provides around 160kW at the rears, but comes on early in the rev range. I was thinking a Garrett GT2560R (otherwise known as a GT28R apparently) which is the replacement for late model SR20 turbo's, and should bolt straight up to my application, but would this give me the power and response that I'm looking for? Looking at the dyno charts in this thread, a GT28RS would be heaps more power than I want, and come on awfully late in the rev's, so not real keen on that. Would like to see full boost at around 3500rpm...

Can anyone help?

[70XIN]

<div class='quotetop'>QUOTE (PuGZoR @ Jan 17 2008, 01:43 PM) </div>HKS 2510.

Will give you that power figure without any lag. Can be picked up cheaply second hand. Ask josh young, and anyone who has been in his car when it was turbo how good this combination is. For drifting of for mountain driving, it's wicked.

[Delazy]

<div class='quotetop'>QUOTE (70XIN @ Jan 17 2008, 05:09 PM) </div>HKS 2510.

Will give you that power figure without any lag. Can be picked up cheaply second hand. Ask josh young, and anyone who has been in his car when it was turbo how good this combination is. For drifting of for mountain driving, it's wicked.
[/b][/quote]

agreed....perfect all round turbo for a 4agte....

[PuGZoR]

What would a Garrett GT2560 be like in comparison to this?

[skin]

Prob laggier be the only difference

Best thing about 2510 is it has same top end without the lag

[PuGZoR]

After much thinking, I've decided to try the Garrett GT2560R. Comparing internals, the only real difference between the two is in the compressor wheel inducer and compressor wheel trim.

Turbo Name | Compressor Inducer Wheel (mm) | Compressor Exducer Wheel (mm) | Compressor Trim Compressor A/R | Turbine Wheel Diameter (mm) | Turbine Trim | Turbine A/R |
HKS GT2510 47.7 60.1 63 0.6 53.0 62 0.64
Garrett GT2560R 46.5 60.0 60 0.6 53.0 62 0.64

Going on inducer wheel size alone, it'd have less top end but wouldn't be as laggy, although differences between the two would be fairly minimal. Obviously if money wasn't an option, the HKS unit would be perfect, but considering I can pick a brand new Garrett for the price of a second hand, unrebuilt HKS model, I'm just going to go the Garrett. Don't think I'll regret my choice.

[350hp4agte]

why do alot of you guys say that 20v are no good boosted is money the only reason