Pics of items, I've been asked to take some of these for awhile..

The shock tower mod


for those needing a fuel purge valve, for some of you this is old news..




supertrick diff cooler module

I was supposed to race there but my T2 vette got taken out at Sebring. I now have a 19 GTpp1 I am making into a T2 car. Can you tell me about the fuel sample port. How can I get a rig like that? The stock GT needs to keep the stock rails for T2 and there is no shrader valve to use as a test port. What is that gizmo? It looks like a fuel pressure sensor and a fuel test port?

It is also interesting because that flat plane restrictor is so thick. I thought it was supposed to by like a 060" flat piece of aluminum. Some claim advantages to spacing out the throttle body. So i guess it is legal to make a thick flat plane restrictor?

bob said:

It is also interesting because that flat plane restrictor is so thick. I thought it was supposed to by like a 060" flat piece of aluminum. Some claim advantages to spacing out the throttle body. So i guess it is legal to make a thick flat plane restrictor?

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The port comes from NX which is a company specializing in nitrous oxide applications, with regards to the restrictor spacer, the pics are from different class cars, including T1 and an older GT2 car and maybe even a T3 car, I didn't make note of that, so I know you need a restrictor for your car, but the limits on how it is installed, I'm not sure of, (it's not my end of the business) but I do know the cars pictured passed national tech for the classes they were in, and the first thing they zero in on is the restrictor and how it's mounted.

Hopefully that first photo of the strut tower allows enough camber.

I always thought the rear diff cooler on the GT350 wasn't getting enough air flow and mine ran fairly warm. Adding a fan is a great idea.

That little cylinder thing is the diff cooler pump?! More info please.

ArizonaBOSS said:

That little cylinder thing is the diff cooler pump?! More info please.

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You mean the filter?

blacksheep-1 said:

You mean the filter?

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The blue thing is the filter, I assume.
I mean the red/gold/silver cylinder w/ the tubes going in/out and the electrical connection. I've not seen something that small before for this application. Used to seeing larger (and noisy) tilton pumps. What brand is that thing?

Both the Filter and the pump are tiny, compared to most. Would also like to know who makes both...

I don't want to send you down the wrong road, the radiator and fan are Ron Davis, and SPAL, I just assumed the pump was RD also, I never paid much attention to it, that's a question for the boss.

Thanks! I found some possible adaptors from russel and NX where the nitrous guys spice in to get extra fuel so they don't lean out running nitrous. I did that when I was a kid. Then I started clubracing when I could afford tires.

For diff and trans pumps you want a gerotor pump. they are the most reliable for the application and they all are hugely noisy especially when bolted to sheet metal.

Someone needs to make the pump run off the ring gear like we had for the C5 corvettes we raced. They were the best solution.

the problem with diff driven pumps on the newer vettes is that they use a torque tube affair, I'm not sure there is enough room to stuff that in the rear subframe assembly. They are a major PITA to replace the clutch because you have to start from the back and work forward, if the car has headers then you have to drop BOTH the front and rear subframes, the diff/trans unit, the torque tube, exhausts, and then the the front sub....and then...then the clutch. For that reason I think they'll be requiring any of our customer cars to have new clutches prior to the runoffs. We changed 4 at last years runoffs and 1 this year. The guys working from jack stands.
It's a pretty crappy design IMO.

Weldon pumps, around $500

https://www.weldonracing.com/store/Oil-Transfer-Lube-c14825049

blacksheep-1 said:

Weldon pumps, around $500

https://www.weldonracing.com/store/Oil-Transfer-Lube-c14825049

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Thank you, very interesting.

Agreed. Thanks! Any idea on the filter?

blacksheep-1 said:

Weldon pumps, around $500

https://www.weldonracing.com/store/Oil-Transfer-Lube-c14825049

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My fuel pump is a Weldon and I'll attest to how loud they are....

Black Boss said:

Agreed. Thanks! Any idea on the filter?

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To me that looks like one of the commonly available inline filters from Summit (search AN6 or AN8 inline filter)

I think it's Weldon as well

blacksheep-1 said:

For that reason I think they'll be requiring any of our customer cars to have new clutches prior to the runoffs. We changed 4 at last years runoffs and 1 this year. The guys working from jack stands.
It's a pretty crappy design IMO.

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Agreed! It has been a long time but I'm 90% sure at impound at the daytona runoffs year at MIS race Andrew diagnosed I probably had a dead clutch. I then had to fly to Florida in the September heat to replace my clutch before the Daytona Runoffs. After that I replaced the clutch every other season! Andrew knows my car he is lapping it all the time!

That is a good looking C5...