Trust T88h-38gk

[johnny_0]

Hello,

I'd want to know, your opinion, if the t88h-38gk with not high boost (so 1.5->1.7 for 700/750ps and 70kgm) can be used with std bnr34 gearbox in normal driving (street/track not drag). it is possible or this turbo is really too powerfull for the bnr34's transmission so is not possible a safe running?

Thks

Carlo

[johnny_0]

nobody has experience about t88-38gk, or similar turbo, on bnr34's stock transmission?

Thks

[MacGTR]

I have had no experience with the turbo but the Getrag 6 speed should okay with that power, I know a few people are running that kind of power with one.

[turbodriven]

That turbo is very laggy. Uses a old style mitsu turbine wheel and comp wheel. Their are much better and faster spooling units out there.

[rockabilly]

yes like the 4094r

[turbodriven]

The 4094R is a good unit, the TC68 is a good unit, the FI-68 is a good unit as well.

All of them will flow 80+lbs/min. The 4094R flows 81, the TC68 flows 80lbs/min and the FI-68 flows 83lbs/min.

[EndlessR]

Originally Posted by turbodriven

That turbo is very laggy. Uses a old style mitsu turbine wheel and comp wheel. Their are much better and faster spooling units out there.

your wrong, the T88-38gk is very different to T78-T88 turbos. Uses different wheels...will grab a pic...have dyno data also...

[EndlessR]

Just to add, did some digging on other RBs and turbo combos.....very interesting, 2 makers show comparable results, one maker well...

With the data, it was made and where there were gaps, I calculated the odds (OS and HKS) Trust I had the dyno data per 100rpm, so thats as accurate as can be.

[GT-R Glenn]

TO4z
If you only want 700 hp t88's an overkill

[T88 ON BOARD]

Hi there,
I have alot of experience using t88 turbo's...
Hence the User name
I can tell you from experience with good head work and big cams i have got the t88h-38gk to come alive at 4800rpm im my opinion you cant beat that for a 1200hp+ turbo!

But minor head work with say 272, 10.5lift cams your looking at around 5200-5500rpm which is respectable..

Questions about the gearbox its not the Turbo that destroys em its the driver lol...Keep in mind the characteristics of a single turbo like a t88, it doesn't build up like other turbo's it just comes on boost hard!... So it can be a little harsh on the gearbox's etc...But you should be fine...Its more the shifting that may break your precious 3rd Gear...

[Asim R32GTR]

In my opinion the best turbo out there at the moment is Garret GT4088R / 4094 (as mentioned above).

Take a look at my dynograph. This is with a stock head, stock intake, stock cams, stock displacement, stock comp ratio.
Only thing changed is pistons / rods / headgasket for durability.


This dyno session was done on a VERY hot day, with around 40C intake temps.

I have tried lots of different turbo`s, and this is the best yet.

Cant wait to get new cams

Asim

[johnny_0]

Thks for your replies.

The 700ps limit is only for safe reason about standard gearbox. I want to rebuild the engine in the future but i dont want to change the gearbox too (with OS88 or similar).

[rockabilly]

4094r amen, just ran this bad boy at 2.2 bar tday on live mapping rb26/30

[rockabilly]

[tuRBy]

can you tell me what cams duration in+ex+lift + what headwork you used to get the t88-gk spool at 4800rpm [is that 0.1bar+ or 0.5bar+ etc etc ?]

with the 272, 10.5lift cams + minor head work what boost was it making at 5.2-5500rpm ?

do you have dyno sheets showing both?

thanks.
---------------

Originally Posted by T88 ON BOARD

Hi there,
I have alot of experience using t88 turbo's...
Hence the User name
I can tell you from experience with good head work and big cams i have got the t88h-38gk to come alive at 4800rpm im my opinion you cant beat that for a 1200hp+ turbo!

But minor head work with say 272, 10.5lift cams your looking at around 5200-5500rpm which is respectable..

Questions about the gearbox its not the Turbo that destroys em its the driver lol...Keep in mind the characteristics of a single turbo like a t88, it doesn't build up like other turbo's it just comes on boost hard!... So it can be a little harsh on the gearbox's etc...But you should be fine...Its more the shifting that may break your precious 3rd Gear...