What real world gains can I expect - Cherokee SRT8 Forum
WK1 General Performance Discussion If you are planning on modifying your Jeep Grand Cherokee SRT8 with a performance enhancing modification, this is the section to post about it.

 
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post #1 of 5 (permalink) Old 01-14-2013, 09:26 PM Thread Starter
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What real world gains can I expect

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 11.34 @ 121, Tuned by Johan!

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post #2 of 5 (permalink) Old 01-16-2013, 07:02 PM Thread Starter
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Nothin? Maybe I should move this thread to the dumb performance question thread...
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post #3 of 5 (permalink) Old 01-16-2013, 07:18 PM
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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!
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post #4 of 5 (permalink) Old 01-16-2013, 07:27 PM
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Maybe you should have asked the guy that made your cam and tunes these things. You may be right in putting it in the dumb thread.

Chad (06 Inferno Red GC SRT8) PWR 6.3L, PWR Apache Heads, Stage6 76 mm Turbo, Stage6 Fuel Pump, SHR NAG1-HTCr, PI 2400 TQ Converter, ATI Flex Plate, BC Coil Overs, Wilwood TC6R calipers, Kooks Headers, Mopar exhaust, MM 85mm T-body, Jerseyboy CMR, Bwoody Sway Links, R1 Concepts F Slot & Dimp, R StopTech Pads, Earls Trans Cooler, TLS Rear Fog Harness
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post #5 of 5 (permalink) Old 01-22-2013, 01:03 PM
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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.

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