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only 351.5 rwhp & 323.3 rwtq on 224/224 patriot ls6 head combo...why so low?

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Old 04-29-2005, 09:04 PM
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Angry only 351.5 rwhp & 323.3 rwtq on 224/224 patriot ls6 head combo...why so low?

i jsut did the partiot ls6 heads with 2.02 int and 59cc chambers. i also did the following mods...

patriot ls6 heads
lunati 224/224 .560/.560 112 lsa
asp pulley
edlebrock lt's
true duals
160 thermo
4.10 gears in 10 bolt
slp 85mm maf
mti lid
k&n filter
intake bellows
msd wires
and stuff in the sig if i forgot

i only put down 351.5 rwhp and 323.3 rwtq...what up with tthis? i was expecting at least 380-390. i have to say that im upset about this, cause i spent a lot of time and money on this project. its seems to me that others are making more power with the same or even less mods. bolt on cars put down 330rwhp...and im at 351? thats gay. now i know this was on a mustang dyno at wheel to wheel and its sae corrected, but that still seems really low. i almost wish i didnt get the tune, cause it felt/feels way faster. what do you guys think? i guess i shouldve went with a bigger cam shaft. what do you guys recommend for at least 400rwhp on a mustang dyno? here a pic of the dyno sheet...
Attached Thumbnails only 351.5 rwhp & 323.3 rwtq on 224/224 patriot ls6 head combo...why so low?-small-224-224-dyno.jpg  
Old 04-29-2005, 09:41 PM
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Those numbers do seem low, but don't get too hung up on all the dyno numbers. Take it to the track, that is the best measure of how good your combo is working.
Old 04-29-2005, 09:43 PM
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I assume this is through a manual? Take it to the track and see what happens. Mustang dynos always put out low numbers anyway.
Old 04-29-2005, 09:44 PM
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If it was a auto car, and on a mustang dyno, those numbers dont seem bad at all.


Also, please show me a bolt on car making 330 with an auto on a mustang dyno. That's a freak right there.
Old 04-29-2005, 09:45 PM
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those arent low numbers for a mustang dyno, find a dynojet close by your pay the 30 bucks to get 3 runs on it and see what you pull on it. Dynos are just for tunning issues mainly, dont worry about low numbers. You could have 600rwhp on a dyno and be getting spanked by a car that has 400rwhp on a dyno. Run it around, take it to the track, if it feels good than dont worry bout the numbers.
Old 04-29-2005, 10:00 PM
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I have those same heads with the larger valve upgrade and also feel my car is a bit lower than others on the dyno, but there is still alot more there. The cam is very small. I went with the 226/226 585 585 patriot cam and with a good custom tune made 398 rwhp on a mustang dyno. On the dynojet it made 415rwhp. I ripped that cam out cause i too didnt make the power i wanted. Go with the Tsp 233/239. There is no reason you shouldnt get 410-415 on the mustang dyno. With all the mods in my sig I get 439rwhp. You can read through my posts to see my problems with that combo just not making power.
Old 04-29-2005, 10:03 PM
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the mustang dyno for me is always 10-15 hp off from the dynojet.
Old 04-29-2005, 11:39 PM
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4.10' and a mustang dyno... I'd try a dynojet just for giggles sake. Or hit the track and see what it does
Old 04-30-2005, 03:30 AM
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Those heads need a bigger cam.
what gaskets are you running?
stock pistons?
flycut?

I would contact someone and get a custom cam more tailored to those heads.
With that cam stage2 MTI/TEA 5.3 would have been better.
Old 04-30-2005, 04:21 AM
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well, i gues i know what youre talkin about, i should go to the track, but i want more. i know the cam is kinda small, but i think it really need more lift and could use a bit more duration. what about a cam in the 240ish range and around .600 lift maybe on a 110 lsa or somehting? too big? i say screw it now, i want max power...
Old 04-30-2005, 04:26 AM
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it is a 6-speed car. anyone having a sale on cams and crap? ill need to get new pushrods again too i bet. damn it. i just finished the install about 2 weeks ago and i already want more. funk. i am using gm mls head gaskets too. so i guess i need this...

bigger cam 400
head gaskets 55
water pump gaskets 10
front seal 20
fluids 40
push rods 100
and maybe new lifters with the bigger cam? im running stockers right now
200
so thats another 800 bucks, i cant do that right now.
Old 04-30-2005, 04:36 AM
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If you still have stock pistons (uncut). Then your choices will be reduced.
But a nice FM 13, G5X2 or similar should give you the power.
IMO like I said, get a custom cam tailored for these head flows, there is always EDC on this site, he is pretty wicked with custom tailored cams.
this way you'll maximise this combo.

In the meanwhile enjoy what you have, it is more than what you had, right?
Why would you need new p-rods??? aren't you running hardened 7.40??
Old 04-30-2005, 04:50 AM
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With mods on sig i made 350 rwhp and 359 rwtq.
Old 04-30-2005, 07:23 AM
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Did you tune it???? I made 393 rwhp in a a4 c5 with 3 year old cnc stage 2 heads and your cam. Did you degree the cam???
Old 04-30-2005, 07:48 AM
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With the right heads, you don't need a big cam to make good power. See the signature below to see what kind of power that can be made with a super tame 215 cam and factory exhaust.
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2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
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Old 04-30-2005, 08:14 AM
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Just yesterday my T/A dynoed 430 rwhp and 409 rwtq, on a Mustang dyno at Exotic Performance Plus in Ft. Wayne, IN. My setup is similar, I have the Patriot Stage II, a Comp 224/224 .581 112lsa, Kooks longtubes 1 3/4 x 3 flowing into a X-pipe with bullet style mufflers, and a JET pulley. These numbers came after a full dyno tune. So I'd say your numbers might be a little low.
Old 04-30-2005, 11:11 PM
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Originally Posted by tim99ws6
If it was a auto car, and on a mustang dyno, those numbers dont seem bad at all.


Also, please show me a bolt on car making 330 with an auto on a mustang dyno. That's a freak right there.
Mine buddy mad 326rwhp before the head/cam swap on a mustang dyno.His stock heads were mildly ported with 202v and a smaller cam than this guy and he made 557rwhp.
Old 04-30-2005, 11:59 PM
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Originally Posted by AsianIce25
i jsut did the partiot ls6 heads with 2.02 int and 59cc chambers. i also did the following mods...

patriot ls6 heads
lunati 224/224 .560/.560 112 lsa
asp pulley
edlebrock lt's
true duals
160 thermo
4.10 gears in 10 bolt
slp 85mm maf
mti lid
k&n filter
intake bellows
msd wires
and stuff in the sig if i forgot

i only put down 351.5 rwhp and 323.3 rwtq...what up with tthis? i was expecting at least 380-390. i have to say that im upset about this, cause i spent a lot of time and money on this project. its seems to me that others are making more power with the same or even less mods. bolt on cars put down 330rwhp...and im at 351? thats gay. now i know this was on a mustang dyno at wheel to wheel and its sae corrected, but that still seems really low. i almost wish i didnt get the tune, cause it felt/feels way faster. what do you guys think? i guess i shouldve went with a bigger cam shaft. what do you guys recommend for at least 400rwhp on a mustang dyno? here a pic of the dyno sheet...
Hey dude

Dont get hung up on numbers,but thats bout rite,i just finished a pakage,228/230 112lsa with ported heads and diff gears it made 294rwkw or 394rwhp & 715nm torque,on a diff note 2 weeks before i did a cam only 222/224 112lsa with no head work it ,auto 3.46diff gears it made 254rwkw or 341rwhp & 699nm torque,the figures that you got are about rite.

regards sonny

Old 05-01-2005, 06:59 AM
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what about higher ratio rocker arms??? does slp still make their 1.85:1 rockers? Do you think i would gain anything from the extra lift???
Old 05-01-2005, 07:06 AM
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Crane/VINCI rockers would be better. variable lift. But mucho $$$$


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