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2x 15's = 21. You can calculate the effective thickness of 2 or more same diameter shims in a stack by: Sqrt(shim1^2 + Shim2^2) so, sqrt(15^2 + 15^2) or sqrt(450) = 21

LOL, not too familiar with that one but they sure did get a deal! Wish I'd have know n it was going to auction, would be good spare parts

Car is having some other work done so this won't happen until Sept timeframe

Thx GM

I'm adding a gear indicator switch to my gen1 S4. I'd like to use it with my Holley Dash, has anyone done this and willing to share the details?

Isn't overheating a sign of a head gasket leak too?

Blue Sea Marine has nice bus bar choices.

Vaseline with some graphite powder

Even without the beach or the hill, there is a lot of sand all around town. Would be fun to have some Padla Trax to get a little more bite. If you are not going to be driving a lot on pavement you'd have fun. I run 37" BFG KR3's at 10psi.... still gotta watch where I stop.

Thermostat is a process control tool. You want your engine at a single operating temp under all conditions. The thermostat adjusts water flow to keep the engine at a set temperature. Idle, low energy into engine: Thermostat closes to let the engine maintain heat WFO: max energy input...

yes. They do make restrictor plates you can buy from Summit. 3 or 4 different hole diameters that work with the stock gasket. Or, just pull the guys ot of the thermostat and keep the plate.

Good comments on the pressure topic. My experience is that you can overcome anything with enough fan. If you are counting on natural air flow to cool you are going to end up with challenges. I think the more you lay it down the less pressure has an effect on the fan efficiency so if you were...

150psi is standard. Tuning with N2 is not the best way. The pressure is really there to manage cavitation. Less pressure = cavitation at slower shaft speeds.

There is not a gasket IIRC. Its a seal on the thermostat itself. I think you have to buy a thermostat to get it

Update: It was a combo of an old starter and a dicey battery. New IMI-101N and a new battery she fired right up.

Thanks Wes.

Just did some trouble shouting with Holley and there is not enough RPM. It's a VW bellhousing with a hi-torq starter... not sure I can get any more RPM. Has anyone had this issue before?

Thanks, relay is working as the fuel pump is running. Looks like the crank sensor is dropping out... brand new motor from GM, but not a Delco sensor

Just finished wiring up my HP and I am not getting any spark. Has anyone had an issue with low RPM cranking not letting the Crank Sync with the Cam? I checked all the sensors and wires and its hooked up ok. I have a Hi-torque starter on a VW flywheel. LS3

So it ran fine for 3 years then started acting up? Did you change anything over the summer?