Thread: GTIR Turbo Manifolds

I dropped from a 1.9 60ft. to a 1.7 60ft., and I could have probably moved a little harder. It hooks good. Big Daddy ran 8.7s with his Supra there. Down from low 9s.

Thats with slicks or drag radials.

I remember you use to have that drag radial launch under lock back in the day.

I switched to slicks but they are only 22x8 15in. I need some bigger ones now I have a good box.

With a GT based turbo a t3 turbine housing its the way to go( if you are refering to this subject)

Try the the M&H 23 x 8.5 x 15s They have 1/2 inch more width, they are 1 inch taller and if you use them on the same rim you have now under full throttle they will grow about 1/2 inch more in dia. This will be perfect for your turbo setup.

Where are you shifting at in the RPM range.

My friends car who went 11.8 at 121 was getting his besyt 1/4 mile runs shifting at 8000 RPMs in first and then shifting at 7000 RPMs 2nd, 3rd and 4th.

Sorry I beg to disagree.

I have had way to much success with the T25 back housings.

I'm shifting around 7200rpm. My rev limit is still 7500. In post #62 there's a link to my time slip so you can compare the two cars.

I will be runing the same setup. pulsar manifold s15 gt2871r turbo. not sure if i should port the center.

I'm not telling you not to port it but mine is factory.

The GTIR manifold will flow better if ported. Now to port it properly there will be 3 spots that need to be welded up to get the best airflow before porting.