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Mamo LS3 Heads Cam Build - 15,000 mile review

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Old 05-18-2019, 12:48 AM
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Bigwebb
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Originally Posted by bigron1212
Any chance you can do a speedo pull! like maybe a 2nd thru 4th roll out?

Yeah. I will definitely try to get one up in the next few days
Old 06-02-2019, 07:32 PM
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Bigwebb
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Originally Posted by bigron1212
Any chance you can do a speedo pull! like maybe a 2nd thru 4th roll out?
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red03vette (11-08-2019)
Old 06-02-2019, 09:03 PM
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Originally Posted by Bigwebb
mid day 98 degree temps
Old 06-03-2019, 02:46 PM
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KW Baraka
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Originally Posted by Bigwebb
At what point do you break even and cross over into gains in the RPM band? And how much loss is there down low?
On Friday, I'll be doing a baseline dyno WITH the mid-length runners and then an after dyno with the full length runners. If the full length runners provide a sufficient torque bounce below 4K RPMs.....I'll keep them on the car.

In any case.....I'll let you know **MY** results.

KW
Old 06-07-2019, 08:57 PM
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Originally Posted by KW Baraka
On Friday, I'll be doing a baseline dyno WITH the mid-length runners and then an after dyno with the full length runners. If the full length runners provide a sufficient torque bounce below 4K RPMs.....I'll keep them on the car.

In any case.....I'll let you know **MY** results.

KW

Keep us posted. Looking forward to seeing the results
Old 06-09-2019, 06:17 PM
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Originally Posted by KW Baraka
On Friday, I'll be doing a baseline dyno WITH the mid-length runners and then an after dyno with the full length runners. If the full length runners provide a sufficient torque bounce below 4K RPMs.....I'll keep them on the car.

In any case.....I'll let you know **MY** results.

KW

What’d you come up with?
Old 06-11-2019, 09:30 AM
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Originally Posted by Bigwebb

Uhhhh. Your oil pressure appears to be a bit low during that pull in my opinion based on what I have seen. Find out what pump is in it.
Old 06-14-2019, 08:18 PM
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Originally Posted by srm077
Uhhhh. Your oil pressure appears to be a bit low during that pull in my opinion based on what I have seen. Find out what pump is in it.

Its a pump that tony recommended and supplied. I believe it’s ported, and it’s my understanding that these lifters reduce oil pressure. That being said, I do plan to add a half quart to bring the total to 6.5 quarts.
Old 06-15-2019, 04:57 PM
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bortous
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Originally Posted by KW Baraka
On Friday, I'll be doing a baseline dyno WITH the mid-length runners and then an after dyno with the full length runners. If the full length runners provide a sufficient torque bounce below 4K RPMs.....I'll keep them on the car.

In any case.....I'll let you know **MY** results.

KW
Yes please.
Let us know.
I'm curious to see this.
This is something I am thinking of doing too.
Old 06-19-2019, 03:36 AM
  #30  
Vette Threat
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This is beautiful and I hope to do the same to my GS next spring but am I missing something? Why only 38PSI of oil pressure?
Old 06-19-2019, 07:31 PM
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Originally Posted by Bigwebb
Keep us posted. Looking forward to seeing the results
Well.....I did half of it....and it was pretty much a fail.

For the baseline dyno, the CPU pulled 7* of timing. Peak power came in at only 482HP at the wheels....and power topped out at 5400 RPMs when I should've been able to pull past 7200 RPMs. The tuners suspect gas that was not up to par.

I'm having the shop do more work next week, but they've already installed the longer runners. I'll get a couple of runs in with the long runners....but I can't see how it will correlate to anything meaningful without a decent baseline.

KW

Last edited by KW Baraka; 07-08-2019 at 08:56 PM. Reason: Typo
Old 06-30-2019, 10:59 PM
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Originally Posted by Vette Threat
This is beautiful and I hope to do the same to my GS next spring but am I missing something? Why only 38PSI of oil pressure?

Looking into it I’m beginning to think I may have an oil pressure sensor that is not reading correctly or possibly an oring not sealing properly on the oil pump.
Old 10-30-2019, 11:57 PM
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Navy Blue 210
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Big Webb,
Any updates?
Old 11-01-2019, 12:30 PM
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Originally Posted by srm077
Uhhhh. Your oil pressure appears to be a bit low during that pull in my opinion based on what I have seen. Find out what pump is in it.
I think its ok , look at the RPM in proportion to pressure variance ( otherwise known in fluid dynamics at "delta " )
I've seen oil pressure in normal LS3 engines at 950 RPM under Hot idle @ 16 psi +- 2/3
as RPM increase so does Oil pressure .

And besides I think Tony Mamo knows what he's doing .
Old 11-06-2019, 08:05 AM
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Originally Posted by Navy Blue 210
Big Webb,
Any updates?

got a ported throttle body in the mail just yesterday from tony. Going to try and get it installed this weekend. Have 25k on the build now and still running extremely strong with zero issues. Still trying to find someone that will actually fix the o’ring on the oil pickup. I’m almost certain that’s what the issue is.

also trying to decide on tires. I don’t want a drag radial, but I do want better traction. I’m seriously leaning towards the r888r. Anyone have any experience at these power levels with those tires?
Old 11-06-2019, 08:09 AM
  #36  
farmington
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I put a set of Kumho ecsta SR91 Tire’s on mine this spring. They hooked better than the Nitto NT05R drag radials that I took off. High performance summer tires. Have a base coupe and set was $700 mounted and balanced.



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