RB25 turbo up-grade. . . ?

Discuss the RB20, RB25 and RB26 series engines.
Wykid 240
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My set-up: Apexi GTSPEC exhaust, "3 DP & testpipe, Greddy intake, HKS FMIC, thinking about 550cc injectors, Nismo FPR, HKS turbo manifold, Walbro fuel pump, AEM EMS and HKS SSQV.

I'm wanting to get 400-450 WHP. What turbo do you all recommend? Also, do you see any thing I can improve on or don't need.. . Thanks

-Jeramy


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BoostFab
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60-1 turbo easily on pump gas

you got the aem ems already/?

Ramius83
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I think that he said that he is thinking of getting the rest of it, the 550cc injectors, Nismo FPR, HKS turbo manifold, Walbro fuel pump, AEM EMS and HKS SSQV.

I don't think that you will be able to reach 400-450 WHP without the aid of a better head gasket.

You don't even need the AEM EMS either. You could do that perfectly fine with an Apexi Power FC.

There is a lot more involved. But let the more experienced peeps answer that one.....

dekand
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he could do it with the power fc but if the aem is only a few hundred more (which the price range i heard) than why not, its got way more features...

Ramius83
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dekand wrote:he could do it with the power fc but if the aem is only a few hundred more (which the price range i heard) than why not, its got way more features...
Complexity is the main thing. And trying to find a local AEM EMS tuner may be difficult, and waiting for the proper numbers and maps online may take a while. I would DIE for an AEM, but I am just going to have to go with the Power FC.

Wykid 240
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No, that's the set-up I'm getting. . . have some of it but not all. Waiting on the AEM, not know if I'm going to get the PFC.

Ramius83
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Wykid 240 wrote:No, that's the set-up I'm getting. . . have some of it but not all. Waiting on the AEM, not know if I'm going to get the PFC.
Well, I would definitely wait on the AEM if you got the time. It has SO MANY MORE tuning aspects to it, it dwarfs the Power FC. I am just the plug and play type, so I am sticking with the time tested proven Power FC.

dekand
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i have no problem with you stickin with the power fc, its great, but what do you mean by "plug and play type" ... the aem will be plug and play in all aspects ... as far as i know they are direct ecu replacements no wiring required... at least thats what it says on the site...

DETurbine
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Precision SC61 76trim T3......pretty much a T61, but has a little better flow and spools a hell of allot quicker. (with the T3 setup you will make about 630hp)...even though every shop claims 680hp, they are wrong...that is with the T4 setup.

If you are pushing 400-450hp, you might want to think about getting a thicker head gasket and ARP head studs. There are those that have done it without, but that doesn't mean everyone will be able to get away with it.

Ramius83
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dekand wrote:i have no problem with you stickin with the power fc, its great, but what do you mean by "plug and play type" ... the aem will be plug and play in all aspects ... as far as i know they are direct ecu replacements no wiring required... at least thats what it says on the site...
Hmmm, that I did not know. I thought you had to wire the sucker up and set up all the maps and numbers for it, kinda like a Haltech setup. Well, danm it, that makes me want to buy one now when they come out. Thanks Dekand...

dekand
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np ... a rough quote from their site says "we specifically design each ems for the car it goes in, so it is a direct swap with no wiring required, etc etc" thats also what got me interested in it over the power fc, the haltech you have to do the whole harness...

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BoostFab
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there's a groupbuy on skylinesaustalia forum for the pfc, about $790shipped directly from japan.

i'm still holding my breath for the price on an aem ems unit.


Wykid 240
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DETurbine wrote:Precision SC61 76trim T3......pretty much a T61, but has a little better flow and spools a hell of allot quicker. (with the T3 setup you will make about 630hp)...even though every shop claims 680hp, they are wrong...that is with the T4 setup.

If you are pushing 400-450hp, you might want to think about getting a thicker head gasket and ARP head studs. There are those that have done it without, but that doesn't mean everyone will be able to get away with it.
Do you have a link for them?

-Jeramy

Wykid 240
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also, with that turbo, when do you think I'll hit full boost at. Will it be streetable?

-Jeramy


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