XE268-H and HSR
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Car: Corvette
Engine: 388 HSR custom Cam see sig
Transmission: 700R4
Axle/Gears: D44 3:45
XE268-H and HSR
Heres my latest combo
Comp 268H-14, Patriot heads,1.6rrs
Cam specs
Valve at lift INT .477 EXH .480
1.6 rr's .508 .512
.006 Tappet Lift 268/280
LSA 114
Duration @ .050 224/230
Lobe Lift .3180 / .3200
Actual Hg at HSR plenum while at idle is 17hg
Wondering if any of you guys might be running something similiar and have had any issues with tuning.
thanks
Comp 268H-14, Patriot heads,1.6rrs
Cam specs
Valve at lift INT .477 EXH .480
1.6 rr's .508 .512
.006 Tappet Lift 268/280
LSA 114
Duration @ .050 224/230
Lobe Lift .3180 / .3200
Actual Hg at HSR plenum while at idle is 17hg
Wondering if any of you guys might be running something similiar and have had any issues with tuning.
thanks
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From: Naples, FL
Car: 1991 Firebird
Engine: 383 stroker
Transmission: T-56
Re: XE268-H and HSR
Well I'm running the HSR with a little bit more cam (230/242 @.050 .510/.540 on a 112LSA). Tuning has been alright I suppose. Sounds like you might have a nice cam picked out though. I'm actually planning on going down to something about like what you picked, for a little better tunable, milage and drivability hopefully.
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Joined: Jan 2002
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: XE268-H and HSR
That cam looks like it makes reasonable vacuum, so tuning shouldn't be that difficult. With a cam with overlap and SD, then it gets harder as the engine doesnt pull much vacuum at low speeds.
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