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4G37/4G63 SOHC: Possible upgrades for 4G15 ECU
http://4g61t.org/forum/viewtopic.php?f=17&t=6396
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Author:  Flying Eagle [ Tue Apr 22, 2014 6:04 pm ]
Post subject:  Re: 4G37/4G63 SOHC: Possible upgrades for 4G15 ECU

It will run richer by whatever percentage more the injectors will flow fuel.

You have to use all the parts together, or just the throttle body alone and some 1/8" bigger on the exhaust system or just a free flowing muffler in place of the stock piece.
That is the only way this will work properly. I recommend port matching the intake inlet to the new TB and gasket. The inlet is way too small of the new part.

Take precautions to not get any metal shavings into the intake, by stuffing rags inside and maybe even taping a vacuum tube right next to where you are porting. You have to go a little Frankenstein sometimes.

Author:  Colt_Driver91 [ Tue Apr 22, 2014 8:19 pm ]
Post subject:  Re: 4G37/4G63 SOHC: Possible upgrades for 4G15 ECU

well I got super bored and put in the injectors my car idles and runs a lot better I don't know why.. maybe its just me I will see what happens and I really don't feel like tearing into my intake I might just look into doing the sonota swap being that it is plug n play. Or save money and due a true swap with a 4g63 I just hate messing with wires on my car.

Author:  Colt_Driver91 [ Tue Apr 22, 2014 8:29 pm ]
Post subject:  Re: 4G37/4G63 SOHC: Possible upgrades for 4G15 ECU

Am I going to ruin my motor running bigger injectors?? Ive heard of people ugrading just there injectors all the time... I mean there not that much bigger but its still more fuel... MORE FUEL MORE FUN RIGHT LOL

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