B18C turbo

[mooshie]

agreed ^^^^

The T28 flange adds too much restriction on the GT3s

given that I do not want to have to change out flanges and alignment on the dump etc though, the T28 rear on the GT 30 is still going to flow more than the 2871R.

at the moment I am thinking just change out the rear on my existing turbo for a .86 as previously suggested. should only run me about $450 plus tuning

[Lukezen27]

given that I do not want to have to change out flanges and alignment on the dump etc though, the T28 rear on the GT 30 is still going to flow more than the 2871R.

at the moment I am thinking just change out the rear on my existing turbo for a .86 as previously suggested. should only run me about $450 plus tuning

Yeah I'm running the 0.86 rear and its seems to work well

[Scholzey]

with the 30 you would get full boost by about 5000rpm or a touch later but would hit a lot harder once on boost

looks like i should swap out the .82ar t3 rear gt2871r for a gt3076r with .63ar housing.

sounds like boost will be similar or maybe slightly better, with much more potential as well :P i gota quote for 1350 US$ delivered to my house maybe i shoudl take it up... hmmm

[Limbo]

True but you loose the potential of the T3 by not changing the exhaust flange

given that I do not want to have to change out flanges and alignment on the dump etc though, the T28 rear on the GT 30 is still going to flow more than the 2871R.

at the moment I am thinking just change out the rear on my existing turbo for a .86 as previously suggested. should only run me about $450 plus tuning

[Neesmo31]

Just a quick question while we are on the topic, would a GT35R with a .63 rear housing be too big for a low boost B18C2 application?

[kccord]

as i have mentioned before..............
here is my graph comparison to t28 with 0.86rear
and gt3076r with 0.82 rear....

No offence bro, but the graph shows that you're pulling torque more than a truck.

[ZeForce]

That is torque at the wheels in 4th gear

[kccord]

shit, never seen that before on any of my dynosheet. Do people mostly measure at the flywheel.

[Limbo]

all dynos are measuring at wheels not flywheel. Only manufacturers measure at flywheel.

Normally you loose about 20-25% thru drivetrain, sometimes more depending on the car

[IEVAQ8]

No offence bro, but the graph shows that you're pulling torque more than a truck.

no offence taken.......

but as explained below, its all measured at the wheels not flywheel...

[ZeForce]

Simply put, gearing multiples torque. If you look at the dyno printout it says ratio = 4.940 so to calculate derived torque it would be 1484 / 4.94 = 300Nm which is still a good amount of torque

[kccord]

bang on, thanks for clarifying.