try to find a brodix casting, even their old junk is better than most other castings. also check with doug herbert.......dont know what they are but couple of guys have had good luck with them, dont worry about the larger stroke on the 454. leave it be and boost the hell out of it.the more you bore it the less meat between the cylinders. spend your cash of really good pistons, rods and valvetrain parts.
turbo el camino vid
- Thread starter buschmec
- Start date
mine is running great, AFR is a bit rich, 10.9 , Im working on my wastegate issue still. I can get 4-5 psi but then it goes to 2ish. I put a fiberglass sock on the wastegate exit and as soon as it starts building boost it opens (blows the sock off, only way I could physically see if its opening!) so Im thinking i need more spring pressure, If i want 5psi at the intake I may need to have 10psi or higher at the turbo because of the pressure lose.
sounds like its coming along. 4010 holley is finally coming around on mine. so far I'm at 66 jets in the front with a 6.5 pv, rear is at 74 jets no pv. accel. pump cam is the 50cc dark red on the first hole. had a cheapo hat spacer on it and it went bye- bye at 10lbs. of boost yesterday. ate a couple of straps off the plugs yesterday playing around. timing was way too high but got it coming back around.
sorry for the long wait on the updates. front jet is 66 with 6.5 standard pv, rear is 78 with no pv. idles at 13.6 a/r. at 6 psi it runs clean at 13.4 a/r after that the pump doesn't supply enough pressure to keep up even with the bypass blocked off in the pump. running at 10 psi it leans out quick. ordered an a1000 pump and reg. will send more info soon. btw at 6psi it will truck!!!!!
buschmec said:
13.4 with boost is scary lean. Get the A1000 on there before something gets hurt.
yep working that way, no sign on the plug of any issue but the o2 tells all. guy that owns the dyno keeps getting sent to california, just waiting for a break in his time.
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