WK1 General Performance DiscussionIf you are planning on modifying your Jeep Grand Cherokee SRT8 with a performance enhancing modification, this is the section to post about it.
I just got my Christmas present today, a custom grind cam from A.J. to compliment my blower. Specs are as listed:
Gross valve lift
.566 intake
.566 exhaust
Duration at tappet lift
264 intake
270 exhaust
Duration
214 intake
218 exhaust
Separation 114.0
What kind of increase in power, and estimates on et improvements can I expect. I do not have access to a awd dyno, so I really dont have a baseline to compare to. Does anyone have similar mods (Maggie, Kooks, high flow cats, Borla, MTCM) to compare?
Thanks in advance, cant wait to hear how she sounds!
__________________
2008 JGC SRT8, Magnuson Supercharged on 6 lbs, Lilboy +4, Kooks Long Tube Headers, High Flow Cats, Borla S, Bwoody CAI, Jet 180tstat, Moroso Catch Can, Mopar TCM, Nitto NT05's 275/315's, 8000k Fogs, Best corrected ET 11.48 @ 118, Tuned by Johan!
cams and heads together is where you see a difference, you probably will see some gains, Im not familiar with the specs on the stock cam but im sure you will see a gain. To get the best noticeable gain from a cam have to pair it with a set of heads. flow bench test your heads and see how much cfm (air flow) your specific heads get at difference lifts, then you base your cam specs from that data. hope that helps!
You don't have to have an all wheel dyno. Very easy to use a 2-wheel. You don't even need to drop the shaft, but my tuner did.
__________________
------------------------------
07, Silver, maggie, Bwood & Borla, QA1s
RM Springs, Vreds, lots of blue BT bling, blue LEDs, debadged
04 Mystic cobra vert 498/507
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.