Here it is, 500AWHP on PUMP GAS, NO METHANOL. The car was barely even working up a steam to get those numbers, we know there is more left in it, but the ARP gods frowned upon us. We lost the passenger side head gasket late fri night. We have already pulled the motor an gotten new head gaskets car should be back together by friday. 2 Center ARP studs had come loose and caused the head gasket failure. There is alot of discussion on how to solve this problem in the subarus since retorquing the studs is so hard to do (IE you have to pull the motor). I think we have come up with a solution and it shouldnt give us any more trouble.
Great. Now you sound like Matt...."spray nitrous on that bitch!" Give me a break for once with the nitrous. G's. ~Tracy
Why is the tq kinda low though? I'd think it would be more squared out? I know AVCS isn't used but still shouldn't it be higher or is it because of the big turbo?
Nitrous makes everything better, see what i would do is throw a big turbo on there. Say f the spool and just spray it. It is a drag car right, who cares about spool.
The torque is low because there is virtually no timing in it. The torque will start coming up as soon as Dan gets aggresive with it.
I'm supposed to pick up the motor from the engine shop this week. It will go back in depending on how crazy things are at BG, with the new drift car going together for SEMA I don't know if there will be time.
Two of the buckets in the head got swapped and it was making a noise so I pulled it back out and took it up there to let them check everything. So far the only known solution is to pull the motor after the first good heat cycle and retorque the heads. We tried something different but I don't want to say until I'm sure it works. I don't like to spread misinformation and I would hate for someone to try it and it fail. Matt
You can simply heat the coolant passages up like Doug mentioned and then tq them down after an hour or so. It wasn't an ARP problem....it was an ARP + Cometic gasket problem.
We don't really know that for sure without more testing. The cometic gaskets are MLS just like factory there is no reason for them to fail. Guys use them in 2000 HP Mustangs. Hopefully heating the coolant passages will work.
Its back..... I dropped the motor back in it last night. Hopefully we can tune it as soon as I get back from Colorado on the 4th
awesome now that the head/gasket situation is solved I cannot wait to see some more numbers.. Is it more or does it seem like it takes it forever to get to redline on the dyno? but those numbers are impressive non the less. Is that the intake manifold that you guys have for sale on IA??
That manifold on IA was built by turbodave this is a Magnus. The reason it takes so long is Dan starts the pull below 2000 rpms, so he can adjust the fueling all the way through the power band.
Matt I better not see that motor back in the shop. And someone is gonna have to change the name of this thread when we get some new numbers lol.