*****Fast Intentions Twin Turbo: OFFICIAL REVIEW THREAD*****

[Seb@SZ]

Originally Posted by Alkatraz

I checked and the 360hp max is listed on the Garrett website. Where they come up with there numbers, who knows.

Has anyone ever seen higher numbers than 650-700hp from twin GT28rs's? Everything that I have ever read says that 500-600 is what most people are happy with but then that is usually on smaller engines (RB's, 1JZ's & 2JZ's).

What turbo's do the high HP R35 guys run on the VR38's?

Yes, keep in mind that is per turbo so 2x 360HP is 720HP. I'm sure you knew that but throwing that out there just in case someone gets confused. We've done 720 whp on a VG30DETT with the GT2860RS turbos. This however was having to make close to 30 psi of boost. On the VHR engine it won't take anywhere near as much, we've done 630 whp on about 13 psi of boost so the turbo (GT2860RS) on the VHR *should* run out of steam around 18-20 psi. This is all in theory since we haven't taken this turbo this high on these engines (stock). Highest so far on 3071Rs was about 25 psi on a built lower compression engine (tturbo370z) which produced 800whp, however this turbo combo was slightly mismatched as it still used a T04B housing and "tiny" .64 AR turbine housing (T25).

[Mr.Squeeze]

Originally Posted by Seb@SZ

Yes, keep in mind that is per turbo so 2x 360HP is 720HP. I'm sure you knew that but throwing that out there just in case someone gets confused. We've done 720 whp on a VG30DETT with the GT2860RS turbos. This however was having to make close to 30 psi of boost. On the VHR engine it won't take anywhere near as much, we've done 630 whp on about 13 psi of boost so the turbo (GT2860RS) on the VHR *should* run out of steam around 18-20 psi. This is all in theory since we haven't taken this turbo this high on these engines (stock). Highest so far on 3071Rs was about 25 psi on a built lower compression engine (tturbo370z) which produced 800whp, however this turbo combo was slightly mismatched as it still used a T04B housing and "tiny" .64 AR turbine housing (T25).

Very good post

Originally Posted by Alkatraz

I checked and the 360hp max is listed on the Garrett website. Where they come up with there numbers, who knows.

Has anyone ever seen higher numbers than 650-700hp from twin GT28rs's? Everything that I have ever read says that 500-600 is what most people are happy with but then that is usually on smaller engines (RB's, 1JZ's & 2JZ's).

What turbo's do the high HP R35 guys run on the VR38's?

I have not seen any R35 GTR's with a GT2860rs turbo's its just not a good turbo for high boost 18 plus PSI. I have seen them run GTX 2867 and HTA 2868 turbos on those cars.

[djtodd]

Hey guys (and girls? )

Thought I would pop in here with a bit of an update.

I put the kit through a bit of a torture test this weekend at Road Atlanta with Global Time Attack.

Two days of absolutely thrashing the **** out of it. Two sessions were in 90+ degree heat with high humidity.

...And it didn't miss a beat. Ran like a top. I have to admit, beforehand I was concerned with what oil and water temps I would see, but it never broke a sweat. Oil never got over 220ish, and water was never above the middle of the range. As background, I have the Mishi rad and FI 34 row oil cooler.

Anyway long story short: I had a blast. The car absolutely hauled ***, and behaved perfectly. I spent most of the time getting accustomed to all the additional power, trying to find the limits, and building confidence. I definitely need more aero now. Coming down the back stretch at 170ish, the rear is seriously squirrely under braking. I ran with the same RE11's that I've had on the car for some time. They have 20+ heat cycles, so they are definitely past it, but I was still pleasantly pleased with overall traction and balance. Still relatively neutral. Can't say enough good things about the OS giken lsd, although the fluid was totally cooked when I changed it yesterday.

One session was in the wet and that was...interesting? Terrifying? Given you can make it step out rather easily in the dry, it was a handful in the wet. Turn 12 was definitely a "pucker" moment for sure.

I put together a quick clip for you're viewing/listening pleasure. Still waiting on my buddy's to get my some outside-the-car video. We took 2 photo/video guys with us, so should have some good footage.

In the meantime, enjoy!

[Mr.Squeeze]

Originally Posted by djtodd

Hey guys (and girls? )

Thought I would pop in here with a bit of an update.

I put the kit through a bit of a torture test this weekend at Road Atlanta with Global Time Attack.

Two days of absolutely thrashing the **** out of it. Two sessions were in 90+ degree heat with high humidity.

...And it didn't miss a beat. Ran like a top. I have to admit, beforehand I was concerned with what oil and water temps I would see, but it never broke a sweat. Oil never got over 220ish, and water was never above the middle of the range. As background, I have the Mishi rad and FI 34 row oil cooler.

Anyway long story short: I had a blast. The car absolutely hauled ***, and behaved perfectly. I spent most of the time getting accustomed to all the additional power, trying to find the limits, and building confidence. I definitely need more aero now. Coming down the back stretch at 170ish, the rear is seriously squirrely under braking. I ran with the same RE11's that I've had on the car for some time. They have 20+ heat cycles, so they are definitely past it, but I was still pleasantly pleased with overall traction and balance. Still relatively neutral. Can't say enough good things about the OS giken lsd, although the fluid was totally cooked when I changed it yesterday.

One session was in the wet and that was...interesting? Terrifying? Given you can make it step out rather easily in the dry, it was a handful in the wet. Turn 12 was definitely a "pucker" moment for sure.

I put together a quick clip for you're viewing/listening pleasure. Still waiting on my buddy's to get my some outside-the-car video. We took 2 photo/video guys with us, so should have some good footage.

In the meantime, enjoy!

^^^^^^^^^^^^Now this is what I call a Mother Fuc k IN Review

Car sound great excellent driving

[wsarver]

Originally Posted by djtodd

Hey guys (and girls? )

Thought I would pop in here with a bit of an update.

I put the kit through a bit of a torture test this weekend at Road Atlanta with Global Time Attack.

Two days of absolutely thrashing the **** out of it. Two sessions were in 90+ degree heat with high humidity.

...And it didn't miss a beat. Ran like a top. I have to admit, beforehand I was concerned with what oil and water temps I would see, but it never broke a sweat. Oil never got over 220ish, and water was never above the middle of the range. As background, I have the Mishi rad and FI 34 row oil cooler.

Anyway long story short: I had a blast. The car absolutely hauled ***, and behaved perfectly. I spent most of the time getting accustomed to all the additional power, trying to find the limits, and building confidence. I definitely need more aero now. Coming down the back stretch at 170ish, the rear is seriously squirrely under braking. I ran with the same RE11's that I've had on the car for some time. They have 20+ heat cycles, so they are definitely past it, but I was still pleasantly pleased with overall traction and balance. Still relatively neutral. Can't say enough good things about the OS giken lsd, although the fluid was totally cooked when I changed it yesterday.

One session was in the wet and that was...interesting? Terrifying? Given you can make it step out rather easily in the dry, it was a handful in the wet. Turn 12 was definitely a "pucker" moment for sure.

I put together a quick clip for you're viewing/listening pleasure. Still waiting on my buddy's to get my some outside-the-car video. We took 2 photo/video guys with us, so should have some good footage.

In the meantime, enjoy!

Awesome video! If I wasn't a college student I'd be out there with you!