awesome! Glad to see you might have found the problem with relative ease. Now get that thing back on the dyno!

 

Video:

http://www.youtube.com/watch?v=9dyXXbS0oSo

 

wow it sounds sick

 

Success!!!

 

Any luck with some numbers to compare with how you did previously?

 

I keep watching that vid! it sounds so damn good... i think i might break down and get this when spring comes around

 

No numbers yet. Looks like Friday afternoon though I will be back on the dyno.


I did get out yesterday and did a bunch of pulls on the highway. The car sound awesome and you can really hear the turbo whistling at WOT. That is the first time I opened it up on a nice straight road with good traction in 4th. 3rd was slipping at 4000rpm , it was a bit cool out though.

Still have that boost drop issue but I am 95% sure that I know what the problem is. I am actually going out to the garage right now to address the issue. It’s not an exhaust issue or a turbo issue.

The weatherman says that Thursday will be a decent day, so I will head out and do a few more pulls on the highway. I think the boost problem will be gone.



Other than that, car drives great, not rattling anywhere. Nothing getting hot under the hood, no clearance issues around the transmision and plenty of clearance under the car, even here where the back alleys have huge ruts from the snow melting.

 

Dyno day delayed for two weeks.

Waiting for a larger turbo, T4 .82a/r 6262E. Precision turbine housings areon back order.


That turbo shold flow plenty. The 6162's T3 turbine was too restrictive.

 

Oooo that's gonna sound even better!

 

Huh, interesting conclusion. What a/r was the t3 housing? with anything .63 and over and a 62mm exducer it should have squeezed 600whp... atleast we have, we've make 550whp on a .48 a/r too lol snappy bottom!

 

T3 .82 a/r.

A number of sources, including Precision suggesting the T3 is not flowing enough. The T3 .82 a/r is aparently better suited for engines 1.8-2.5L of displacement.

Also called a couple of shops that deal with the VQ, and they suggest I go up in size on the turbine.

 

Is the turbine wheel physically larger in the inducer or exducer? Because staying with the same a/r and wheel dimensions and only trading flange size will yield identical results. I assure you the t3 was not your restriction at 360wheel or what ever...but we will never know the true culprit with your ve change from the new turbo.

The 6262 is a nasty turbo, you'll love it.


(And I love how you say VQ shops...like that has anything to do with cfm..... )

 

Actually the turbo won't be the 6262, I made a mistake.

It will be a T4 6265 .58a/r, so a 65mm turbine wheel.

By VQ shops I mean shops that have build their own turbo kits for these cars, like Injected Performance for example. And guys like you and Quamen, that have experience with these cars through building their own kits as wel.

There, now included you Mulletman....

 

Very nice! I personally run a 65mm wheel in a .83 housing and I think its a very quick spool, which is what I wanted in my street car. But I'll admit that every now and then I beat my self up for not getting a 6765 billet, but who knew they were coming out... Hell can you change your order to the 6765?! That way I can live vicariously through you since I wont be getting one any time soon hah.

Awesome to see you going up in turbo, that just means your that much closer to a built motor

Great build man, I love how easy it is for you to play with different turbos.

 

With the kits I am offering, the customer can decide what turbo they want. Some criteria they have to follow, but still leaves them with a ton of turbo options.

As long as the turbo is a T4 E cover with a V-band outlet on the turbine.

 

Sick BP!! Sick

 

there are dyno's of gt35s making over 600 on a VQ. Theres no way your T3 was a restriction.

+1 on getting the 6765 instead, heck i;'d actually try up to their billet 7168 turbo. they spool no problem on a smaller displacement supra.

 

I was planing on using a T4 anyway, so that will be out of the way.

 

The only problem with the 6765 in Boosted's case is the 4" intake that he won't be able to fit. At some point that would significantly hinder the power capabilities of that turbo. It is amazing how large the affects of intake bends and tubing diameter can be on a turbo's performance.

 

The 6765 is also available with an E cover, so it would work just fine with this kit. Actually they are available all the way to 6780 with an E cover. The 6780 is rated at 790hp

I spend some time on the phone with Precisions Techs. discussing compressor covers. They tell me that there is no difference between the S and the E cover until you get to 30psi. After that there is a difference, and the E just ends up pushing hot air.


I will go back to the 6162 turbo and find out what is causing the boost drop. It is either the 3" intake (although powerlab makes 600hp with a 3" intake) or my OEM style muffler in the back acting like a huge plug.

I am welding a flange on tonight that has bolt patterns for the T3 and the T4 turbines. it will be very easy to change turbos with this setup.