Help With Rb25det

[Drift King]

Hi all

I need help! Recently, my turbo was making funny noises while under heavy acceleration. My tuner advised me to change the turbo as it was on the way out.

We installed an HKS T3G turbo because it would be a straight swap bolt in turbo.

What I have now found is that under heavy acceleration the car doesn't go as well as it used to and in extreme cases will actually 'bunny hop' violently. I believe this may be due to having too much boost, is this so?

I have purchased an Apexi Power FC + Commander and a Hybrid intercooler, but I have been told that I may also need a boost controller.

I had intended to keep the car stock and under the advise(?!) of my tuner decided to upgrade to a stronger turbo to increase reliability but could this have damaged the engine? It has become a very costly lesson for me and I just want the car working reliably.

Any advice will be greatly appreciated.

Regards

Drift King

[RB30-POWER]

Yeah, the extra air flow from the larger turbo will be putting you off the standard map points in the ecu.

They just map the higher load points with rich fuel and little timing, because this is a great boost/power cut.

Get a powerfc asap, and you will get all your power and more back!

The ecu is deff the problem in your case!

If you can turn the boost down it will help, but if its already at the wastegate spring pressure, you won't be able to do much.

[R31Nismoid]

beat me to it again!

ECU - problem starts and ends there

change it

[Drift King]

Thanks heaps guys! I have bought a power fc but, due to a lack of funds, am yet to install it.

Does anyone know much about the HKS T3G turbo? Would anyone have a pic so I can compare it to mine and be sure that that is what I have?

[fresh]

even installed was a quick tune would be better then stock ECU, i spent $100 for a install and 10 min road tune, and car ran sweet as, then made upto 220rwkw now with the stock turbo and th PFC tuned