Ported Striker aftermarket head castings Shaved to get 11.1 to 1 Comp
Jesel 1.7 rockers
Striker street cam
Smoth tubes
S&P "Green" filters (pulled on this run)
Balenger Headers
Corsa Exhaust
Archer UD pullies
RPS Alum Flywheel
Magnacore wires
Ron Davis Readator
Tune
3.55 gears
CCW 19" wheels with 355/25R19's out back
Short throw shifter
Woodhouse Motor mounts
The pull right befor this was 604 rwhp the only change was pulling out the S&B "green" filters. That gave me 8 RWHP, I guess there is a limit to what those filters can flow
Not bad for a car that you just fill up with 91 oct and go....
Was it impossible to raise compression with pistons or thinner head gaskets? Seems shaving such an expensive pair of heads could hurt resale in the future. Great numbers....I bet it would be a track monster.
How does it pull in the low revs compared to a stock viper??
1st and 2nd gears are prity much totally useless now from tire spin from flooring it at any RPM. As you can see on the dyno chary the cam brakes 500 RWQT at 3500rpm... cant beat that
Was it impossible to raise compression with pistons or thinner head gaskets? Seems shaving such an expensive pair of heads could hurt resale in the future. Great numbers....I bet it would be a track monster.
The Pistons are stock, I shaved the heads 0.060" and used a 0.014" thinner then stock head gasket (it's the Newer stile OEM head gasket, it's 0.014" thinner then what came on the car)
1.) Price paid for the Ported Striker aftermarket head castings Shaved to get 11.1 to 1 Comp, Jesel 1.7 rockers, Striker street cam.
2.) Would the stock radiator be OK with this combo?
Again, sweet combo.
Thanks
Ya with a 15% DL loss thats 720 crank HP.
#1 ~$8000 that heads, cam, pushrods, rockers
#2 I'm sure the Stock Radiator would be fine, but it gets ~115 deg in the summer were I live so the car even stock HERE would get VERY hot just driving around town.
I'm not finished yet, I think there is some more power to be had, I'm still running Stock T/B's. I think I'm going to try porting a set of stock T/B's and stepping up to a slightly larger throttle plate. Them maybe port the intake.
I'm very happy with the Power the Striker heads make. There are alot of guys out there with big CID strokers that dont put out these #'s.
Last edited by FastMatt : October 30th, 2007 at 10:22 AM.
Nice Matt. Didn't know you were working on a VIPER!!!! Wonder if your guy will be able to make my heads flow close to STRIKER heads performance?....
Gus//
IMO the stock castings can not be made to perform as well as the striker castings can. The changes he made to the port and valve placement are very nice improvement.(not to mention cooling) To get a stock casting to flow this much in the high lift #'s the intake running needs to be huge and that will hurt the lo lift #'s. Therefore power/tq under the curve will suffer.
Also a big thing for me was I wanted to get the comp. up over 11 to 1, with the stock castings to get them to flow really good with larger valves allot of material must be removed from the combustion chamber. This means that you have to shave the heads 0.030-0.040" just to get back to the stock comp. To get over 11 to 1 out of stock castings with big valves and re-worked chambers I believe to be impossible with a stock short block. (on your Roe car this does not matter because you are not going to be wanting to raise comp.)Not to mention the better cooling in the head allowes you to run higher comp. with out pinging.
Now porting a set of stock casting is allot cheaper then getting the striker heads so ported stock castings does have it's up side.
So "Close" Depends on what you call close?
WAY better then stock? Yes
as good as the Striker heads? IMO , NO.
Last edited by FastMatt : October 31st, 2007 at 09:43 AM.
IMO the stock castings can not be made to perform as well as the striker castings can. The changes he made to the port and valve placement are very nice improvement.(not to mention cooling) To get a stock casting to flow this much in the high lift #'s the intake running needs to be huge and that will hurt the lo lift #'s. Therefore power/tq under the curve will suffer.
Also a big thing for me was I wanted to get the comp. up over 11 to 1, with the stock castings to get them to flow really good with larger valves allot of material must be removed from the combustion chamber. This means that you have to shave the heads 0.030-0.040" just to get back to the stock comp. To get over 11 to 1 out of stock castings with big valves and re-worked chambers I believe to be impossible with a stock short block. (on your Roe car this does not matter because you are not going to be wanting to raise comp.)Not to mention the better cooling in the head allowes you to run higher comp. with out pinging.
Now porting a set of stock casting is allot cheaper then getting the striker heads so ported stock castings does have it's up side.
So "Close" Depends on what you call close?
WAY better then stock? Yes
as good as the Striker heads? IMO , NO.
I'm going tubo in the near future. So "close" for a turbo car is what I mean. I do not want 11 to 1 for a turbo car. Mabe we can talk pistons, rods, and main caps from your shop as well as getting my heads done?????
I have been trying to get a hold of JM and its hard as hell. Called both numbers and even emailed. Can anyone tell me what a set of striker casted heads will run?
Sorry to high jack. What is some amazing numbers. Congrats on the purchase and numbers!
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