HSR on my sbc
07-15-2008, 06:07 PM
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Car: 1979 Malibu
Engine: Blown LSx
Transmission: T56 Magnum
Axle/Gears: 9"/wavetrac/35's/3.70
HSR on my sbc
my projects have both taken a hard left and im looking to combine, the enigne ive built is now going into my other project with hopefully a TKO600 behind it, but i really want to go EFI, ive looked hard and long at the HSR and think it is the way to go, but have some questions on it working with my current combo( brodix IK200's and a comp cams XR 294, 08-443-8 .540/.562 lift, .242/.248 duration @ .050" and 110* LSA. tuning nightmare? or should i downsize the cam, i dont want to go to small because of my intake runner size, i think once tuned w/ a mild port on the HSR and some 36 or 40 lb injectors this thing shoul make lots of power, but i am unsure on the cam, any thoughts?
07-15-2008, 07:07 PM
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Car: 1983 Firebird SE
Engine: C5 LS1
Transmission: 6 speed
Axle/Gears: 3.42
Re: HSR on my sbc
The standard view is you want 212 LSA minimum with FI.
Comp cams has a good series of "XFI" cams. I have the 280XFI in my 383. It runs good and can be used around town. The 280 or probably the next one up should do the trick for you. The XFI cams have 213 LSAs.
Comp cams has a good series of "XFI" cams. I have the 280XFI in my 383. It runs good and can be used around town. The 280 or probably the next one up should do the trick for you. The XFI cams have 213 LSAs.
07-15-2008, 08:25 PM
#3
07-15-2008, 08:43 PM
#4
Re: HSR on my sbc
that cam on a 355 will be a challenge to tune but can be done i do believe. i'd still look to get something abit smaller
i have a 286/306 230/245 109lsa on my HSR 383 being '89 MAF sensor run and the tune is liveable. It idles ok but some mild problems i cant quite figure out yet. I'm fairly new to tuning so i'm working on figuring it out, but part throttle and such wasnt too bad.
speed density would be alot harder i'm sure
i have a 286/306 230/245 109lsa on my HSR 383 being '89 MAF sensor run and the tune is liveable. It idles ok but some mild problems i cant quite figure out yet. I'm fairly new to tuning so i'm working on figuring it out, but part throttle and such wasnt too bad.
speed density would be alot harder i'm sure
07-15-2008, 11:33 PM
#5
Re: HSR on my sbc
i got the XFI280 for my HSR383... mines also a maf car but ur LSA is alil too close... FI doesnt like that too much. wats the size of the heads? wit anything in the XFI280 and up range u better be running really good flowing 195cc to 220cc. the 355 is gona wanna rev wit a cam like the 280 or higher
07-15-2008, 11:46 PM
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