Coyote head porting! - Mustang Evolution

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Old 02-08-2015, 08:27 PM   #1
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Coyote head porting!

Hey so im going for doing an all out N/A motor. Custom cams from CC and fully ported heads with racing valvetrain etc.
So to anyone who has experience with them: JPC Racing or MMR.
Who do you think offers a better stage 3 head & better customer service and overall product quality.
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Old 02-08-2015, 09:55 PM   #2
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You should see if Rapinator is still on here. He could walk you through it. And he can walk you through how to rebuild it if it blows up.
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Old 02-08-2015, 09:58 PM   #3
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Ive been in contact with him. I just wanted to get some more peoples opinions.
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Old 02-08-2015, 10:55 PM   #4
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Grabber blue 5.0 is pretty knowledgeable as well

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Old 02-08-2015, 10:57 PM   #5
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^ on my contact list as well.
I was hoping a rep from jpc was a member on here. As well as mmr.
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Old 02-08-2015, 11:00 PM   #6
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^ on my contact list as well.
I was hoping a rep from jpc was a member on here. As well as mmr.
I haven't seen any

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Old 02-08-2015, 11:02 PM   #7
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Nor had I. Hence why id like to hear from people who have done the top end work on their cars.
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Old 02-08-2015, 11:03 PM   #8
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Nor had I. Hence why id like to hear from people who have done the top end work on their cars.
Honestly I can't think of anyone around that has done an all out n/a build. I'm very curious and I look forward to progress and results.

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Old 02-08-2015, 11:07 PM   #9
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Ive contacted comp cams about lift higher than their stage 3 cam. They got back to me with note that on the stock rotating assembly they could get out to .516/.514 lift. To go more would require custom pistons. With stage 3 heads you should be able to see gains through the entire curve.
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Old 02-08-2015, 11:12 PM   #10
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Ive contacted comp cams about lift higher than their stage 3 cam. They got back to me with note that on the stock rotating assembly they could get out to .516/.514 lift. To go more would require custom pistons. With stage 3 heads you should be able to see gains through the entire curve.
Ask rap was his custom grind cams were going to be

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Old 02-09-2015, 12:31 AM   #11
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There was a feature article on a readers car in MM&FF about 3 years ago, the guy did just what you're planning.

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Old 02-09-2015, 12:36 AM   #12
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That was a shops car. I read about it. Not really a 'guy'. Nonetheless it was a good read. They said they were going to keep writing about that build but I didn't see any updates after the stage 1 jpc heads.

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Old 02-09-2015, 12:51 AM   #13
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Coyote head porting!

Could always buy a voodoo motor and swap it in.

If you REALLY want it to be a badass NA motor look into a stack injection system (AKA individual throttle bodies)


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Old 02-09-2015, 01:40 AM   #14
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Problem with itbs is the hood lol. They're cool but not well suited for a car that is a dd.

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Old 02-09-2015, 04:57 AM   #15
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MMR has had quality issues over the years. My friend who has a shop has had a few of their motors come in with issues. I would have no problem going with JPC.
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Old 02-09-2015, 10:08 AM   #16
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That's what I was wondering. Plus I see jpc used a lot by shops doing builds so there had to be a reason.

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Old 02-09-2015, 10:33 AM   #17
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That was a shops car. I read about it. Not really a 'guy'. Nonetheless it was a good read. They said they were going to keep writing about that build but I didn't see any updates after the stage 1 jpc heads.

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What color was the car?

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Old 02-09-2015, 10:44 AM   #18
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I don't know I didn't look at the pictures, I was more concerned with what was being said.

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Old 02-09-2015, 07:28 PM   #19
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Hey so im going for doing an all out N/A motor. Custom cams from CC and fully ported heads with racing valvetrain etc.
So to anyone who has experience with them: JPC Racing or MMR.
Who do you think offers a better stage 3 head & better customer service and overall product quality.
Shipped my heads to Fastlane motorsports in Benson N.C. to have my heads ported, they did a great job with good customer service. Give them a call.
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Old 02-09-2015, 07:35 PM   #20
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What were your results after doing so?
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Old 02-09-2015, 07:41 PM   #21
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What were your results after doing so?
I did a full build with them short block stage 2 comp blower cams and stage 3 head porting . Car is making 750rwhp & 620rwtq.
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Old 02-09-2015, 07:44 PM   #22
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So you have a blower then? What type?
Did you happen to get your numbers n/a before you put the blower on?
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Old 02-09-2015, 07:55 PM   #23
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So you have a blower then? What type?
Did you happen to get your numbers n/a before you put the blower on?
Car already had blower it is a roush 2.3L TVS. Car was making 600rwhp before build and retune. I know it is not apples to apples for what you are looking to do just wanted to give you another option to look at. Check out their Facebook page to see some of their work. Hope this helps.
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Old 02-09-2015, 08:04 PM   #24
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So youre still running stock boost? 750 is healthy for that roush blower.
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Old 02-09-2015, 08:09 PM   #25
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What intake are you using for your build.


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Old 02-09-2015, 08:10 PM   #26
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Stock until I can round up some more money for a CJ top end.

To be honest i would prefer to have a shop do a custom manifold with the same flow as the CJ manifold but with longer runners. In an effort to keep from loosing as much torque as possible.

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Old 02-09-2015, 08:15 PM   #27
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I assisted in a full N/A build on a boss 302, friends car. Most boss owner want to keep them N/A so the Cobra Jet intake is a must, 25 peak hp more. Some figures you can expect is 500-550 Rwhp, closer to 550 if you use the boss heads.


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Old 02-09-2015, 08:20 PM   #28
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Well Id rather just have stage 3 heads from JPC . However if you mean porting the boss heads, there is no point they are the same as the coyote heads just with different lift and valvetrain components. And a meager cnc job.
As i said though i would like to be able to put an intake manifold on that has CJ #s but 12 in. runners to match the stock intake.

And 15 psi with a built top end. That must be nice. Translating to well over 800hp fly. Damn.
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Old 02-09-2015, 08:20 PM   #29
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So youre still running stock boost? 750 is healthy for that roush blower.
No, running a 69mm pulley 15 psi boost.
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Old 02-09-2015, 10:09 PM   #30
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Coyote head porting!

Quote:
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Well Id rather just have stage 3 heads from JPC . However if you mean porting the boss heads, there is no point they are the same as the coyote heads just with different lift and valvetrain components. And a meager cnc job.
As i said though i would like to be able to put an intake manifold on that has CJ #s but 12 in. runners to match the stock intake.

And 15 psi with a built top end. That must be nice. Translating to well over 800hp fly. Damn.

The boss heads have 4% more flow at intake and more I believe in exhaust, however you really aren't left with much to port with the boss heads. You'll get much more out gt heads as you stated.
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Old 02-09-2015, 10:13 PM   #31
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MMR stage 3 heads flow 12% better than the boss heads I believe. If I recall what I read from their webpage. I would expect that JPC stage 3 heads would perform about the same on a flowbench. Regardless a stage 3 stock head will still outflow a boss 302r head. And for cheaper. Brand new heads are in excess of $3k. JPC offers their stage 3 for ~$2k if memory serves.

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Old 02-09-2015, 10:48 PM   #32
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Not bad at all I been waiting for a NA build, that's my plan to stay NA but money and life has had other plans for me at the moment
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Old 02-09-2015, 10:53 PM   #33
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Yea I wanna stick with n/a for now. If years down the road something happens to the motor and it needs a new rotating assembly then I'll probably pump it up to 12.5:1.

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Old 02-09-2015, 11:09 PM   #34
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Check in to Livernois in Michigan.

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Old 02-09-2015, 11:27 PM   #35
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I looked into them. I'm between them and JPC. Right now I'm waiting on money and some time. I don't wanna burrow into the engine just yet, not till closer to the end of the warranty.

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