Re: -FINALLY DYNOED, PRETTY HAPPY WITH IT-
 

Ive always done my d's arp's to 80lbs. Ive always done it at 40lbs in order, then 60, then 70, then 80. Im sure its overkill, but ---- it I haven had a problem. Replace your hg and then torque the ---- out of them.

Re: -FINALLY DYNOED, PRETTY HAPPY WITH IT-
 

well bj setup is almost done he's putting my old kit on his rex and he says he's definitly running e85 so you'll have experience here shortly.lol.

Re: -FINALLY DYNOED, PRETTY HAPPY WITH IT-
 

Nice build. Which shop did you get it tuned at?

Re: -FINALLY DYNOED, PRETTY HAPPY WITH IT-
 

RS motor sports in the twin cities.

Re: -FINALLY DYNOED, PRETTY HAPPY WITH IT-
 

E85 you should be able to make gobs of power on a D-series before they implode upon the failures of being a small bore, inefficient engine.

There are a couple tricks to keeping D-series from having coolant issues.

1) Headgasket and headstuds. Primarily over torquing the studs a good bit helps a great deal when using a quality stud(ARP). I forget the numbers but go on evans-tuning.com and Jeff posted his numbers that he uses with success. I believe they are similar to those posted below by ratcityrex.

2) Ignition timing. Don't run a lot. Simple as that. You are on E85 so you are not octane limited but you are going to have issues with D-series cylinder pressure in general because, D-series are small bore, inefficient engines. You could probably knock off 2-4* of timing, lose 5-10hp and not have cooling issues. Then raise the boost pressure another psi and knock the timing back another degree and make 20hp more. So in the end, you net +10hp and don't have cooling issues.

2) a. Run an EMS that actually controls timing well.

Re: -FINALLY DYNOED, PRETTY HAPPY WITH IT-
 

Yeah with that much boost making 300hp your timing on a d should be getting close to or at single digit's. I tuned one the other day and it ended up at like 11 degrees at 16psi.

Re: -FINALLY DYNOED, PRETTY HAPPY WITH IT-
 

but was that on e85? my freind just tuned on e85 also and i wanna say he was at 26* timing

Re: -FINALLY DYNOED, PRETTY HAPPY WITH IT-
 

No your right. It was just pump gas. Ive never messed with e85 so who knows.

Re: -FINALLY DYNOED, PRETTY HAPPY WITH IT-
 

26 holy ---- thats alot

Re: -FINALLY DYNOED, PRETTY HAPPY WITH IT-
 

E85 is race gas. 105-107 octane fuel is pretty hard to make ping at 300ish whp. You would have to run retardedly high ignition advance to get the engine to blow via detonation. The question is, did they actually need to run all of that advance or did they simple run all that advance because they could?