Re: Test-drove Sean Roe\'s new supercharged GTS!
Regarding nitrous use, I need to consider provisions for an additional blow-off valve in the manifold, in case you get a backfire on nitrous (manifold pressure would go up hundreds of psi, which could damage the SC if there was no pressure release).
An instruction video sounds like a good idea.
The upgrade to 7-8 psi will yield about another 70-80 hp (approx) over the 5 psi kit. It will be more involved since you have to change the fuel line, filter, gain access into the fuel tank (pull up the glued down carpet and drill out the panel rivets on a GTS), swap the fuel pump and regulators, etc..
That's why we are making a 5 psi kit now. It's the limit for the stock pump and line size, making it an easy and fast install that you could do at home. Plus, it's safe for the newer cast piston cars on 91 octane gas, where 7-8 psi might be pushing it too far for them on lower octane gas.
Regarding exhaust pipe and header tube size, stock will still work fine, but you can get more power with larger tubes. We have 1&5/8" primary tubes on the GTS now (stock is 1&1/2") with 3" exhaust pipes. That's how we tested the car on the *before* tests. Sometime, we plan to put 1&3/4" B&B headers on it and see what the power difference is.
Looks like a nice day today , so we should be on the dyno this afternoon.
Sean
p.s.
Forgot to address the price question. How about "very affordable"
. I can't get too specific yet because we're still working on the manifold production costs. Big differences between manufacturing processes.
<FONT COLOR="#ff0000" SIZE="1" FACE="Verdana, Arial">This message has been edited by Sean Roe on 04-08-2002 at 07:44 AM</font>
