Anyone Tune Mopars?
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
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Do you have the valve spring tool?
Last edited by 1INSANEGTO; Mar 1, 2011 at 08:23 AM.
the 6.1 springs have great life on mild cams.
infact, in the dodge world, spring life is a relative non issue because the stock PTV wont take more than mid 21x/mid 22x cams. without retarding them .
"big" on a stock displacement 6.1 is 219/223 with some of the larger stuff being in the 222/230 range.
even on on more aggressive lobes, these durations arent as brutal.
who did your tune the first time around?
i used a few different local tuners.. some made good power.. but none could get the drivability down. i ended up sending my tune to Johan at Diablosport.. and for a small tip in his paypal account, he gave me the best street tune i ever had with only 1 or 2 datalogs (and no wideband info). that dude has talent.
(i used to have a head/cam full intake/exh 5.7 charger... ran 12.30's@114)
what exactly is it doing? i can help you with a diagnosis.. i spent a long time working on dodges...
p.s.
are you on lxforums?
pat g,
dont you have a bit of experience with the hemi platform? steve frank had my cam ground

i ran PAC 1218 springs on mine.. dont know if i knew of many/any people running 1518's
Last edited by dudeiwin86; Mar 1, 2011 at 08:38 AM.
Cam is a Frank Racing 214/218 .565/.555 114LSA +4 camshaftI have Johan's tune as well same issue. Think I am going to replace the valve springs one weekend.
I love that cam in the jeeps.
I heard about that jeep from steve. what sort of behavioral problems is it having? a spring upgrade is never a bad thing, but that cam is on pretty mild lobes.
It's either misfiring, detonation or I have a vac leak somewhere. Sound is coming from the passenger side only. It happens when launching the car only. If I do a 60-130mph blast it's fine.
Johan sent me a tune made changes and said the logs looked fine, Patrick G has alot of time tuning it and it should be fine. Brian at ExoTorq looked at some logs I did last night and said the passenger side was off by as much as 15%.
Don't think Johan seen that as before I was just tracking cyl#1 info now I have all 8 logging.
At this point I am lost........ I just don't think this is spring related.....
Last edited by 1INSANEGTO; Mar 1, 2011 at 02:15 PM.




