Has anyone built up the IS250 engine?
01-09-19, 07:48 AM
#1
Driver School Candidate
Thread Starter
Has anyone built up the IS250 engine?
Im curious if theres anyone whos actually built the engine and how much power it made. New cams, bored cylinders, forged pistons, fuel injectors, etc.
Im not even sure if the 4GR-FSE would be good to build because of the direct fuel injection so would someone put some insight on this?
Im not even sure if the 4GR-FSE would be good to build because of the direct fuel injection so would someone put some insight on this?
01-09-19, 09:34 AM
#2
Swap out the 250 and put in the 350.
01-09-19, 10:05 AM
#4
Racer
there was a thread where a BRZ/FRS/86 had a 2GR that was bored and stroked. I haven't seen any instances of the IS250 4GR being modified yet. A little off topic but RR Racing has been doing a lot of R&D on our platform in regards to extracting more power on stock internals. They are possibly releasing a SC for us in the near future which is what I'm currently waiting on.
01-09-19, 11:17 AM
#5
Driver School Candidate
Thread Starter
there was a thread where a BRZ/FRS/86 had a 2GR that was bored and stroked. I haven't seen any instances of the IS250 4GR being modified yet. A little off topic but RR Racing has been doing a lot of R&D on our platform in regards to extracting more power on stock internals. They are possibly releasing a SC for us in the near future which is what I'm currently waiting on.
01-11-19, 07:18 AM
#6
I was only partially trying to be funny...by the time you tug out the 2.5L and rebuild it with cams and pistons
and bore it and reconfigure the fuel injection computer to feed the monster you could have just dropped in
a nice low mile 3.5L out of a recycling yard and plugged in its computer and be driving..faster.
and bore it and reconfigure the fuel injection computer to feed the monster you could have just dropped in
a nice low mile 3.5L out of a recycling yard and plugged in its computer and be driving..faster.
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