Jump to content
SAU Community

Recommended Posts

Is that with a 6766 ?

Would love to see a see a graph to compare with my 6266

That it is mate. Nice turbo. We use to have a T78 on it but decided to try for some more power as Yavuz at Unigroup kept telling us there was something that seemed to be holding the power back.

Put this turbo on and picked up quite a bit of power and about 8mph which is decent

Have you had it down the qaurter mile ido9s? Is it fairly responsive on the 26 or abit laggy?

I have. I cant drive for crap but the car has run 11.00 with a best mph last time out of 138.5. Will be back out this Saturday with some new tyres to see if i can run a 10 with it.

I think its responsive but having said that the car has had big singles on it for years so i am used to it.

If your worried about lag go the 6466. The graphs above show the difference and had i seen that i would have gone the 6466. I ahve never been able to find a direct comparison as good as that one. Its quite eye opening to be honest

Weapon X, so there wasnt much involved with those 2 graphs other than swapping out the turbo and a little bit of timing? Nothing else got changed? What sort of boost was it running and what fuel?

Edited by ido09s

No other changes just a bit of timing maybe 2 degrees. Pulled the 6766 put on the new 6466 . Same day or night I guess it was late. lol

Boost is 24 psi. fuel is 93 oct we have in the USA. But the nonEthanol 93 is going away

  • Like 1

Just did a tune on my rb25/30, 6466 t4 twin gates, 6 boost on e80% and it did 520rwkw on 29psi, 420 on 18psi... Unigroup dyno - stupid amounts of torque and lights up every gear up to 4th on 265 AD08r's response is better than 6766 based on comparisons on supras in the US. Just top end is better on 6766 when its pushed hard.

Just did a tune on my rb25/30, 6466 t4 twin gates, 6 boost on e80% and it did 520rwkw on 29psi, 420 on 18psi... Unigroup dyno - stupid amounts of torque and lights up every gear up to 4th on 265 AD08r's response is better than 6766 based on comparisons on supras in the US. Just top end is better on 6766 when its pushed hard.

graph?

Just did a tune on my rb25/30, 6466 t4 twin gates, 6 boost on e80% and it did 520rwkw on 29psi, 420 on 18psi... Unigroup dyno - stupid amounts of torque and lights up every gear up to 4th on 265 AD08r's response is better than 6766 based on comparisons on supras in the US. Just top end is better on 6766 when its pushed hard.

your not heading back to Unigroup any time soon are you? We made 485rwkw but we stopped at 24psi and would love to see your graph with ours on the same sheet. Only difference is ours is a 26 bottom end

I am quite disappointed to be honest in how ours makes its power. Unfortunately i am limited to 24psi due to standard head studs and with the way ethanol fuel is possibly heading i am not really wanting to disturb the head and stud it as it may not be available in the long run.

I had it back out at the drags a week or so ago and it didnt go any better. 60 foot is down ever so slightly due to new tyres, but it just wont run the first half of the track well. Still runs mid 130's mph wise, but it wont run a decent time. 11.3's pretty much all day

Edited by ido09s
  • 6 months later...

Hope To have a result to post up here in the next month. Built 2.8 stroker with a 6766 1.0 rear on E85. Will be pushing it till the turbo has nothing left.

Did you end up getting it on the dyno legzy?

I see what your saying alot of people like the response and midrange when looking for a turbo, this video is on a rb26 running 22psi it's doesn't seem laggy.

A 6766 on a rb30 would be even better and with more boost [emoji3]

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • They're so beautiful 馃槏
    • Early last week, I became concerned that the car was feeling....slow. Most of my driving is commuting to/from work and there are few opportunities to get up it and convincingly make boost/power. It drives in vacuum almost all the time. But when you do occasionally get an opportunity, and.... it takes a little longer to start making power, and then there's not as much as you'd expect, and then you run out of road anyway and have to bottle out - it can be hard to be convinced that there's something wrong. But by the end of the week I was pretty convinced. Made an effort to get a decent test run. Took bloody forever to come up on boost and when it did it would only make about 50 kPa of pressure. There was no black smoke, no noise of a boost or exhaust leak, no evidence anywhere of an intercooler hose clamp being sloppy enough to let air escape. So.... not that sort of problem. Brainstorming led to thinking that the boost controller's solenoid might have failed in some way. No active boost control would just give wastegate pressure, which I was more or less getting, and the laggy behaviour could just be "normal" shitty boost response from an uncontrolled highflow. But a little extra 3rd party brainstorming led to the thought that the actuator circlip might have jumped off leaving me with a bluetooth wastegate. So, on Friday, off comes the stock heatshield (which is an annoying enough job on its own) to reveal - yup. WG is wide open. And.... it won't come back. It is jammed in the dump. Put the rod back on with a new circlip and tried driving it to get it hot in the hope that the capture was from thermal effects having been blown into the dump when hot and since cooled. Nope. Won't move, even with screwdriver mediated force when hot. Ran out of time to play. Came back to it yesterday. Unbolted the dump. Was lying under it with the dump jammed up against my guts undoing the bottom 2 bolts. Got them most of the way out and gave the dump a serious heave. It didn't noticeably move, but there was a satisfying "plink" noise from up to. Shuffle out and sure enough, gate is now closed. Nevermind that there was still the better part of an hour after that required to put it all back together. f**ken cars.
    • For your application, where you'll be at that 1/2" size or perhaps larger, yeah, excellent. Although not if you need a tight bending radius anywhere, because the corrugated stuff is not anywhere near as flexible as rubber/teflon cored stuff. But for turbo oil lines? No. Too big. They just don't do the corro stuff down at the ~1/4" ID size that you'd want, and if they did the OD of it would probably be a bit too fat for fitting it into the tight spaces available. I use hoses like that all the time for fuel gases (LPG, NG) and liquid fuels (HFO, diesels, waste oils). When we did the London Olympic cauldron, with the 204 individual burners on it, we had miles of the stuff (although a lot of that was teflon core). A bunch of that crap is still cluttering up the workshop, more than 12 years later!
    • Would something like this be an option  https://processhose.com/products/configurable-metal-hoses/1-2-in-t316-stainless-steel-annular-corrugated-configurable-flexible-metal-hose-assembly-with-ends-t304-single-braid-masterflex-af5550.html I'm looking at this for replacing the OEM EGR when installing a aftermarket intake plenum 
    • The once piece tail shafts with cv type joints on either end are the ones that end up vibrating and the vibration is caused by the cv joint binding as it turns, I鈥檝e also seen them explode from the binding 
  • Create New...