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-   -   Turbo 408 finally close to done! (https://www.corvetteforum.com/forums/c5-forced-induction-nitrous/1663835-turbo-408-finally-close-to-done.html)

gymtitan 04-23-2007 03:16 PM

:)

Will be running Wed. Getting close.:D

Vince99FRC 04-24-2007 03:27 PM


Originally Posted by gymtitan (Post 1559940853)
:)

Will be running Wed. Getting close.:D

That's like tomorrow bro!!! I cant wait to read the outcome..

gymtitan 04-24-2007 08:55 PM


Originally Posted by Vince99FRC (Post 1559956016)
That's like tomorrow bro!!! I cant wait to read the outcome..


Me 2!:thumbs:

focnos 04-26-2007 01:22 PM


Originally Posted by hpcubed (Post 1559876441)
Can you tell me where you bought your heat shielding for the turbo turbine housings?

im sure he has no idea...:thumbs:

MDMCZ06 04-27-2007 08:13 AM


Originally Posted by focnos (Post 1559985624)
im sure he has no idea...:thumbs:


:rofl: :rofl: Wouldn't be the first time you underestimated me

opticZ06 04-28-2007 02:23 AM


Originally Posted by focnos (Post 1559985624)
im sure he has no idea...:thumbs:

:rofl: :eek: :cheers:

Earl H 04-28-2007 08:00 AM

Where is the update on this car?

focnos 04-29-2007 05:15 AM


Originally Posted by MDMCZ06 (Post 1559996681)
:rofl: :rofl: Wouldn't be the first time you underestimated me

where is the update on the car?? Hummm i never underestimate you....lol

gymtitan 04-30-2007 06:58 PM

Update
 

Originally Posted by Earl H (Post 1560011422)
Where is the update on this car?

Earl the rear end shaft just arrived today. Should be driving shortly.

bogielake 04-30-2007 09:38 PM

Am I looking at the single pic right? That airfilter needs to be move into the FA stream. It looks like it is right behind the radiator....you will get nothing but hot air....is that just a prelim shot? I am sure Ed is on top of it. :thumbs:

88 under the hood? :willy: :willy:

focnos 04-30-2007 11:33 PM


Originally Posted by bogielake (Post 1560043430)
Am I looking at the single pic right? That airfilter needs to be move into the FA stream. It looks like it is right behind the radiator....you will get nothing but hot air....is that just a prelim shot? I am sure Ed is on top of it. :thumbs:

88 under the hood? :willy: :willy:

the air filter is in front of the radiator...cool air only..:cheers: it is a nice kit and works well...i want to see some numbers on that thing.. tim, dont let them guys get slack:nono: .....that thing is going to be a beast...:thumbs: :eek:

MDMCZ06 05-01-2007 10:18 AM

The location of the air cleaner isn't optimum, as it was drawing from hot underhood air. We are making a new panel that seals off the filter so it's only able to draw cool outside air. The car is all together, and we are tying up a lot of loose ends, but we will be driving it in the next day or so. A lot of things that were supposed to be already done on this car were not, so it took a little longer than expected to get to this point.

There's a lot of discussion as to whether the T76 will be big enough to make the power we're looking for on this 408. I think it will, others say no way, so I guess we will just have to see:thumbs:


Ed

http://vetteweb.com/toc/vemp_0706_cover.jpg

highpsi4u 05-06-2007 03:20 PM

is it done yet??? numbers???:willy:

JZ 97 SS 1500 05-08-2007 10:35 AM


Originally Posted by MDMCZ06 (Post 1560049361)
The location of the air cleaner isn't optimum, as it was drawing from hot underhood air. We are making a new panel that seals off the filter so it's only able to draw cool outside air. The car is all together, and we are tying up a lot of loose ends, but we will be driving it in the next day or so. A lot of things that were supposed to be already done on this car were not, so it took a little longer than expected to get to this point.

There's a lot of discussion as to whether the T76 will be big enough to make the power we're looking for on this 408. I think it will, others say no way, so I guess we will just have to see:thumbs:


Ed


Ed, you will probably get 700rwhp with that unit, but you will be sacrificing reliablilty to get there. Your backpressure #'s since I see your using a standard T76 from Turbonetics will be around 50-70psi with about 18-20psi of boost. Going to a 76GTS will bring them down only slightly to maybe 45-55psi or so. You don't have enough turbine for 750rwhp and doing it efficiently. The compressor will handle it albeit choking, but it will get there. Run the consumption charts vs PR vs compressor maps first. Then that will give you a starting point. Your best bet is to slow turbine speed down by going with a larger comp wheel, or do both and go larger on comp wheel and turbine wheel. Also a T6 would be the best combination.

JZ 97 SS 1500 05-08-2007 10:41 AM


Originally Posted by Vince99FRC (Post 1559642179)
I agree with what many have said about turbo sizing.. Since I am on the Supra Forum often I have seen a lot of new T4 turbo's in the 80mm to 81mm range that are very promising. If a 3.0L motor can hit 1000rwhp easily with a Sound Performance new 81mm T4 turbo you should be able to hit that easily with much less boost. I am not saying that it would be efficient, but I am saying it is doable.. If you get a chance have Ed P. take a look over in the SF and maybe SP can do something for you guys. SP is also working on a C6Z06 at this moment..

Their are much better comp wheels then the GT45R's SP is using. They are using box stock units from Garrett. Also the GT45R's 12 blade turbine wheel is not a bad choice for a large CI engine. You can get away with it on a Supra due to the high pressure ratios achieved, but lower the comp side PR and back pressure will become a BIG problem. More blades = more back pressure on the turbine side.

gymtitan 05-08-2007 02:42 PM


Originally Posted by JZ 97 SS 1500 (Post 1560162380)
Ed, you will probably get 700rwhp with that unit, but you will be sacrificing reliablilty to get there. Your backpressure #'s since I see your using a standard T76 from Turbonetics will be around 50-70psi with about 18-20psi of boost. Going to a 76GTS will bring them down only slightly to maybe 45-55psi or so. You don't have enough turbine for 750rwhp and doing it efficiently. The compressor will handle it albeit choking, but it will get there. Run the consumption charts vs PR vs compressor maps first. Then that will give you a starting point. Your best bet is to slow turbine speed down by going with a larger comp wheel, or do both and go larger on comp wheel and turbine wheel. Also a T6 would be the best combination.

We may be calling you, I just wanted to stay T4 if possible what would you go with on a T4 you are the Turbo expert we are just going with what I had. Or would you just T6 no matter what??

gymtitan 05-16-2007 08:47 PM

Dyno
 
Be on the Dyno Fri.:toetap:

highpsi4u 05-17-2007 09:58 PM

:willy:


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