Jump to content
SAU Community

Recommended Posts

so many options

want to see full boost by 4,000 rpm - but not die out by 8500rpm

tried searching each one specifically for a 2.8 but no dice

What boost/power level? You might need something a bit fancier than a Precision if you want that combination

Update guys, The Old girl made 350kw 15 psi 430kw 24psi, 30psi made 436kw @ 6000rpm ignition prob the splitfires arent coping plus Im thinking the exhaust maybe holding it back 3.5 inch dump pipe 3.0 inch exhaust maybe to much back pressure we will check & see whats going on. Should be up around 500 plus in my eyes gate is vented straight out with screamer pipe. Need to iron out the little bugs then hopfully see some decent numbers.

Sorry which turbo and what motor? Thanks.

I'm deciding between a 6262 or a 6266 for a SR22VET circuit car.

The 6262 should make 450rwk but may struggle to hit 500rwk whereas the 6266 might hit the 500rwk but be approx 250-500rpm slower in spool. Boost levels would be around 24-30psi.

Should be a similar story for most, so you just have to decide what is more important. Outright response or a few extra kw up top?

I'm leaning for a few extra kw up top because you can never have enough power! and your tuner can always play around with cam timing to bring it on a bit earlier if need be. For the 6466 add another 30rwk or so and add another say 300rpm, and so on for each turbo thereafter.

Edited by SRS13

I'm deciding between a 6262 or a 6266 for a SR22VET circuit car.

The 6262 should make 450rwk but may struggle to hit 500rwk whereas the 6266 might hit the 500rwk but be approx 250-500rpm slower in spool. Boost levels would be around 24-30psi.

Should be a similar story for most, so you just have to decide what is more important. Outright response or a few extra kw up top?

I'm leaning for a few extra kw up top because you can never have enough power! and your tuner can always play around with cam timing to bring it on a bit earlier if need be. For the 6466 add another 30rwk or so and add another say 300rpm, and so on for each turbo thereafter.

With 450rwkw an extra 50kw isn't really going to help, you're going to be going from wheelspin to even more wheelspin.... I would just go the 6262!

Yes of course but 295 all around and decent aero should help with that.

However I doubt I would run that on the circuit at all but I might use it on the drag strip or runway... and if it only costs me 300rpm or so I am seriously considering it.

RB26 built big cams 6766 e85 see sig under post

Thanks. Can't see the sig on the phone. Yeah should make a lot more than that - 500rwk easy depending on boost level.

Mates old set up made 536rwk on 34psi with a 6466 T4 twin scroll 0.84 on a 2.0 SR20VE on the JEM dyno.

Thanks. Can't see the sig on the phone. Yeah should make a lot more than that - 500rwk easy depending on boost level.

Mates old set up made 536rwk on 34psi with a 6466 T4 twin scroll 0.84 on a 2.0 SR20VE on the JEM dyno.

Here is his sig -

R32 GTR n1 block Mahle pistons, Eagle rods, Supertech Valves, 280 cams 11.5mm lift Hypertune plenum, Ported Head, 6766 CEA BB Precision Turbo just fitted, Awaiting Tune, 35psi & E85 up its gutz & see what happens.

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

    • Biggest thing is you're okay!   It sounds like between the accident, and the drive home, it was a pretty torturous trip again! On the bright side, you took the opportunity to enjoy the event more from the perspective of a spectator, than as an entrant!   Sad to see so much damage to the car. It really has taken a HUGE hit in the front end. If/when you choose to repair, hopefully the rails are straight (At least from shock tower backwards). Hopefully the extra cage coming through there has save most of the chassis rails, and HOPEFULLY saved the motor too. Best of luck when you eventually get motivated to start pulling it down to check it all out
    • Sounds more like what Brad said, that it's mainly transfer. What pad bed in procedure did you use, and did you replace/machine the rotors, or just swap pads?
    • The stutter is almost entirely in the pedal. I don't feel the brakes release and reapply as you would with ABS engaging but the pedal feels that way, without the brakes releasing. It only lasts for less than a second and the pedal is fine again. It's hard to explain, sorry.  I'll get under this weekend and just double check everything is tight. Fluid is at max where I left it.
    • What bedding in procedure did you use?   When you say stutter, what exactly do you mean? Like it feels like someone letting go of the brakes momentarily and regrabbing them again to get you to stop? Re-reading your post, and that is what it kind of makes me think you're explaining, like theres a little bit of a jolt, likely just as you're reaching a stop. I've only had this issue once. And if its caused by what caused mine, you will want to get the car up on stands again and check it over. Mine was a case of a caliper mounting bolt coming out and letting the caliper rotate on the other remaining bolt and gave play in a wheel as it came to a stop. But not every stop either!
    • Yeop... binned it   This will be a summary will not many pics atm and cbf  Fixed the samsonas - it was totally munched Put a new precision 7675 T4 on with proper split pulse mani Got to Sydney to get to car - drove to canberra to get racecar - drive back to sydney that night Next day all day at Plasmaman putting on new clamps cleaning some things up and adding another large engine oil cooler sitting at the rear above diffuser to keep things cooler Next day - Tuesday - on Dyno - killer wikid awesome pumped out really good numbers - more mid range and on lower boost levels Wednesday - first prac - all day again getting the suspension right - had to borrow front suspension again - out do a lap come in - out do a lap - in - what i had just couldnt handle the load at the more consistent higher speeds - got a lap in at the end of the day that was pretty reasonable  Put it this way that lap wouldve had me in 4th in Pro am for the whole event - with only 700 hp and used tyres Thurs first official prac day - lap out warm up - then entered a hotlap with above setting and 80% effort took corners 1,2,3 and into 4 car felt awesome -  rear came around out of nowhere bang into the wall near front on at whatever 140 kmph Done, over, gone Just one of those how did that happen apparently as all indications show nothing out of the ordinary Got to spend the rest of the time at the event like I hadnt done before - was actually Ok mainly as I had my family and my boy is 9 and got treated like a rockstar Long trip home, lost a trailer wheel in nowhere land, X5 airbag suspension gave up half way across nullabour and rode on bumps stops (its now completely fine) had to do a 19 hr drive day on day 3 as accommodation got screwed up so just had to keep driving till found a town with some Now to reassess - hopefully the motor and other things are OK but yet to be seen too. There is no easy fix there is no i'll just order that part and get it sent - we'll have a talk to people see what can happen and what the go is but at minimum its rebuild from scratch struts forward and alot of time effort and $ should and if I return and if but maybe/ when  I have the cage tied into the front strut towers - if I didnt have that things couldnt been worse you can say its just a front end but if you know what goes into these cars... you'll know what that actually means in reality   Car was very fast. Disappointing we just didnt get to show it Effort doesnt win you races though     Apparently this is motorsport !  
×
×
  • Create New...