Thoughts on custom blower cam specs?
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From: Commerce Twp, MI
Thoughts on custom blower cam specs? Still on my stock internals. Running a D1SC w/ 7psi max and a free flowing exhaust (1 7/8 headers and Mufflex 3.5" with cutout in I-pipe). Looking for a cam upgrade...something mild to moderate. Came up with an XE lobe grind:
222/228 .566/.571 114+4
The spreadsheet I found says it'll turn out to be on a 110 ICL with a DCR of 8.08 and -3* of overlap (if I'm reading/calc'ing correctly). So, I'm assuming this should idle nicely and still perform fairly well in the lower-mid range.
Anyone with thoughts on this as a SC cam? My concerns are:
1) Going too big with the numbers may make the car suffer down low since it's a centrifugal supercharger setup.
AND
2) Going too aggressive on the lobes...
222/228 .566/.571 114+4
The spreadsheet I found says it'll turn out to be on a 110 ICL with a DCR of 8.08 and -3* of overlap (if I'm reading/calc'ing correctly). So, I'm assuming this should idle nicely and still perform fairly well in the lower-mid range.
Anyone with thoughts on this as a SC cam? My concerns are:
1) Going too big with the numbers may make the car suffer down low since it's a centrifugal supercharger setup.
AND
2) Going too aggressive on the lobes...
Last edited by SSpdDmon; Sep 22, 2009 at 09:59 AM.
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From: Commerce Twp, MI
LOL I just realized this is basically one of the grinds Speed Inc sells. So, my only question remains to be regarding the "+4" ground into the cam. Do I want the extra DCR it creates on a forced induction setup or should I stick with a straight up 114 LSA at a DCR of 7.81?
I wish I could help with the cam specs but I know Futral Motorsports sells two blower cams you might want to check out. If you don't mind what are you putting down with your current setup?
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From: Commerce Twp, MI
Had some belt slip on the dyno when I had it on the rollers a couple years back. Between fixing that and a valve that had kissed a piston from the previous owner, I'd expect it to be in the 500+rwhp range. I think with the addition of a cam and a smaller pulley to bring boost back to 7psi, it should be near 600rwhp.
With you still being on stock internals and no mention of after market heads or intake I'd say that's pretty good. I'm looking at doing a D1SC on mine sometime in the new year so this info is encouraging.
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From: Commerce Twp, MI
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From: Commerce Twp, MI
Maybe I'm a lil too optomistic. IDK
Last edited by SSpdDmon; Sep 22, 2009 at 09:03 PM.
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