Ouch.. I got Noobed..

Yeah, disregard my earlier post..

 

 

I am very impressed with all of this. Dave obviously is in love with his work and thats a good thing for all of us. .Can't wait to see how the flash works on the big cams.

 

Anyone else read this post the same way? Is it possible that the TME turbo offers very little gains?

 

The best way to see the gains of the TME turbo is to overlay the before/after dyno charts. You should be able to see that the power and torque curves start earlier, thus giving you more power sooner and also more area under the curve.

 

Peak power is going to be a minimal improvement.. Keep in mind that overall, the compressor hasn't changed, but the exhaust housing and lighter TiAL impeller wheel improves low-end spool and other characteristics, its lower mass improves boost response and transient response. Overall this would result in more power down low, and a more responsive feeling car.

The improvement is the entire area under the curve, the difference that the peaks may not be all that different.

That is where the 20G wheel and modified compressor cover would come in, since if successful, it will move more air volume for the same boost levels.

 

hope you guys find out that the 280 can work well with a flash.good luck next week

 

Dave,


How do you think your 20g will compare to the TME turbo in terms of midrange power gains and spool up time? Which would you recommend to someone that wants the best in a street driven turbo and not just peak numbers?

Also, the gains made w/the ported exhaust manifold and o2 housing were reported after the installation of the intake manifold which caused a loss of power initally, correct? What would you say the gains would be when the ported manifold and o2 housing are used along with the stock intake manifold? Forgive me if you already stated this, I must have missed it. Finally, did you notice faster spool up with your standard intercooler upgrade?

Thanks!

 

Where the above mentioned results/impression run with a 9.8 or 10.5 turbine housing?

Sorry if I missed that previously noted detail.

Great thread btw, thanks for the ride

 

Dave, if you decide to include the 280's with your kit, will you be recommending/including valve springs with the staged upgrade? Or, do you feel that the stock spring are sufficient for these cams?

 

We did not have to port the '05 compressor housing. Go ahead and send your stuff in malibu, I will coat the header/02 in exchange for letting me test them.

I tested with both electronic boost controller, spring type manual and bleed type manual controllers, results were all the same. I also tried no less than 4 different manual controllers on the car. The car has our billet manual controller on it now as it worked as well or better than any others we tested.

Dyno run #345 reflecting that I put in 680 cc injectors does not state why I did it. I only did it because the stock injectors were in the low 90% duty cycle range and I was getting ready to test the 20G. The 20G I was expecting would need the 680's, it did not.

I do not recommend getting larger injectors with the stock turbo, at all. The fuel pump is a good idea although the stock pump kept up perfectly past 350 whp.

David Buschur
www.buschurracing.com

 

Just installed StageII and GOOD GOD THOSE BLACK PIPES ARE SEXY!!! Thanks buschur racing. Now...if i can just get that SAFCII to work...damn wires.

 

The TME turbo had the fastest spool but not what I would say the best overall power curve. I don't like giving up any power under the curve if I don't have to. In the case of this turbo if you want lightening spool up from a dead stop then get it, port it and install it. Over 4,000 rpm though the clipping picks up the turbo. The way I see it is once you get it to 7000-7500 rpm in 1st and start going through the gear the car will never see anything under about 4600 rpm anyways, so in this case I will take the slight loss under the curve.

Thge 20G will not spool much slower than the stock turbo on the car. The TME is a different ballgame as the spool up is very fast. Top end power should be alot more, over 4,000 rpm, with the 20G.

It is hard for me to guess what the gains from porting would have been on the exhaust parts had I done them before the intake manifold. I'd guess it would be the same.

David Buschur
www.buschurracing.com

 

Thanks in Advance

 

I'll get them out to you tomorrow or wed.. Hopefully that gives you enough time to play with them.