My son has an FD with a normal street port...and we got 480 at 15psi. Water meth though.....but basically a stock FD fuel system pushed to the max

I think the flow of my turbo is a lot higher than yours... ;) I can run a chart at about 8psi...likely about the same flow as yours at 14 give or take

Curious as to why you opted for a 1/2 bridge when yours is a racing engine ?

As opposed to a full bridge?

That's significantly more than the dynos I've been looking at :dunno:

What turbo ?

yes ..

Reliability and don't really need the power. The 1/2 is a good compromise. It keeps the power band a bit lower and more torque down low and still flows enough up top....and the seals seem to stay healthy longer

Sons is a stock BW366...mine is a 366 with a billet compressor wheel that has been modified and a modified turbine

Might go IWG 9180 and give it a try...but hard to justify the extra 2K for the turbo really ;)

Would only consider a 1/2 on the Renesis as bridgeing the primary ports would seriously impact lowrpm torque I think.

Not going to even try comparing to your setup ;)

I suppose you would be cleaning the ssv very often with a bridge on the secondaries.

Depends on driving style i would think.... my car wont spend too much time in grandma mode.

speaking of port jobs what would be an ideal port job for renesis with a greddy turbo possibly bnr when my wallet says its okay? ultimate Goals are 280-300hp & 200-230tq

Not a lot to be gained porting for that power level . But if you are getting a rebuild you may as well get hold of a Racing Beat template and have at it .

oh okay thanks brettus

1/2 of nothing still equals nothing, but flagelate away ...

You're back !!!! We missed ya !

I actually think it will make a big difference mid range and to a lesser degree at the top end . It works great on an REW turbo . Can't see why it wouldn't work just as well on a Renesis .
What do you know that might change my mind on that ?

and now you're back from outerspace

Looks like he teleported in for just long enough to make one silly post .....
Must have gone back to his home planet now :lol2:

He thought we'd crumble, he thought we'd lay down and die. No, not us, we will survive :)

Sorry, have been a bit busy lately. I need to take some pics of the bridge work from the last engine. Its a bit different than expected.

where can i found this manifold ?

On Brettus' car.

I love when 9k posts first... I get to be the nice guy :)


It's a one off custom manifold made by Brettus' "guy"
It might be possible for you to talk with brettus to see if his guy is up for making another. I doubt he has a jig though...

It's so tight down there that you probably wouldn't get away with a single manifold design that would fit multiple brands/models of turbo. E.g. no way an EFR would fit on that manifold. You'd have to get a turbo that has very similar dimensions to the one that the manifold was built for.

I've heard from several sources that the main performance benefit of twin scroll is for engines with intake/exhaust port overlap, which isn't the case on an MSP unless a serious porting job has been done. So with a standard MSP, a single scroll will likely perform in a similar way to a twin scroll, with probably a little less spool and a little more top end. Brett, is this also your conclusion? If you're moving to a bridge port with some overlap, you may get better performance sticking with a twin scroll setup.

So if single and twin scroll setups on a standard MSP motor perform in a similar way, then the rx8performance manifold would perform at a similar level as Brett's current setup. When comparing these manifolds with a regular Greddy setup, the main improvement in performance comes from moving from a T25 to a T3 turbine housing. I found out first hand that changing from a 71mm wheel (e.g. GT3571) to a 76mm wheel (e.g. GTX3576) made minimal performance gains as on my Greddy setup. It's totally choked up from the T25 and iWG.

There really is no use in having a twin scroll turbine housing with the renesis. there can't be a true twin scroll setup. Having a twin scroll means separating exhaust pulses. Easy to do with older style 13b engines. The middle exhaust port is shared between both rotors on the renesis.

I'm currently running a 0.83 single scroll housing . Spoolup is exactly the same as what I had on the 1.01 twin scroll . So ..... that tells me that the twin scroll is in fact worthwhile on my setup even though it is't the perfect setup to take advantage of a twin scroll .
Agree re the bridgeport .... should get better spoolup plus better midrange due to the improved VE plus the twin scroll will work better .

My manifold seems to be better than the rx8 performance manifold for both spoolup and topend.
That kit comes with a 6266 with a 0.83 turbine housing which in theory should spool about the same as my 3582 with a 1.01 , but mine spools quicker than either of the rx8perf. setups I've tuned.

Did you do the turbine backpressure tests ?