Plz Dont Explode!

[Luthor666]

hi all

recently ive had trouble with my rb25 since my regrettful turbo upgrade ive been told to add injectors and ECU into it to sort it ive bought a APEXI POWER FC and SARD 850cc injectors but im a bit worried about putting them into a stock engine i mean surely increased injection would make alot more heat and strain on the engine so what do i have to do to prevent it from exploding after i spent so much on it, forged pistons??

[PM-R33]

What turbo did you put on. That's the million dollar question.

Don't run an aftermarket turbo on the stock setup so yes injectors, fuel pump and ECU are a must at the minimum. Engines don't just explode. Detonation is what kills engines which all comes down to the tune. Having a large turbo on a car on a stock setup is a lot more dangerous than running a bigger turbo with all supporting mods keeping it all running right.

By the sounds of things i'm assuming it was just a slightly larger turbo upgrade, possibly highflow? Regarding your injector choice you may have gone a bit overkill, but once again, comes down to what turbo you put on there.

Need more information man.

You need to start reading the Forced Induction section to get a better understanding of it all.

EDIT: Don't worry I just found your other thread, i'll read that and reply in there.

Edited July 2, 2010 by PM-R33

[mad082]

the bigger injectors themselves aren't going affect the engine. you could put 10,000cc injectors on a stock engine and it won't affect it at all because you then tune the ecu to only allow the injectors to put in the same amount of fuel as it was before.

what will put more stress on the engine is the turbo. this then pumps more air into the engine, and therefore you have to put more fuel into the engine to balance it out.

[Luthor666]

so ok the injectors wont harm the engine bcos they are set to match the air intake with fuel (more air, more fuel) ok. what about a fuel regulator will the stock regulator be able to run injectors as big as 850cc coming from a stock setup or will it be wise to get an aftermarket fuel regulator if so which one?

[mad082]

i'd just stick with the stock one. again, this is what tuning does. by putting in the bigger injectors you allow more fuel in, so you don't need to adjust the fuel pressure to do that.

[R33_NICK]

as PM-R33 said, its all in the tune. normally if you have big injectors, a higher flowing fuel pump and bigger turbo you'll have to tune it anyway. you dont have to change the fpr for your application, its not really necessary unless for some reason you want to fine tune your fuel system or running ridiculous amount of power.