Review: DevilmanVISA ported and polished heads!! - 3000GT/Stealth International Message Center

LRStealth · 05-06-2004, 12:06 PM

These heads are amazing. The quality of work and attention to detail is stunning. I'm still working on my car after rebuilding the motor, but I wanted to throw up some pics of the heads and some flow numbers. The work included refurbishing the heads, 3 angle valve job, polished combustion chambers, and full port and polish including the oil passages.

Let me get my engine working right and broken in and I'll post some times. For now, enjoy the pics!

Thank you Frank (devilmanVISA) for doing such a great job!

LRStealth · 05-06-2004, 12:07 PM

Jeremy C · 05-06-2004, 12:10 PM

Thanks for the pics! I've been thinking about sending my heads off to him but didn't know if I could afford it.

What was shipping cost on those heads?

LRStealth · 05-06-2004, 12:12 PM

Flowbench numbers:

Lift Intake Before Intake After Percent Increase
0.1 86 91.9 6.86%
0.2 178 180.9 1.63%
0.3 232.5 254.6 9.51%
0.375 245 283.1 15.55%

Lift Exhaust Before Exhaust After Percent Increase
0.1 76.6 136.3 77.94%
0.2 148 218.2 47.43%
0.3 193.1 252.3 30.66%
0.364 201.4 261 29.59%

LRStealth · 05-06-2004, 12:14 PM

Quote:

Originally Posted by Jeremy C

Thanks for the pics! I've been thinking about sending my heads off to him but didn't know if I could afford it.

What was shipping cost on those heads?

I think $25.

LRStealth · 05-06-2004, 12:18 PM

This picture shows some of the work done to help facilitate oil flow:

VRMAN · 05-06-2004, 12:26 PM

How do these heads compare in price/workmanship to those sold by Vendo companies?

Good review.

DDI · 05-06-2004, 01:25 PM

How much did this cost?

devilmanVISA · 05-06-2004, 01:30 PM

That set of heads in the pics outflowed the 3KGT heads pretty much across the board by roughly 30cfm on both sides. The only real differences, other than the styles of porting, where that my heads have stock valves, while the 3KGT heads have oversized ferrea valves. But for those wanting to go the oversize valve route, I have an account with Ferrea so that's not an issue.

If anyone has ANY questions feel free to ask.

wraith · 05-06-2004, 01:34 PM

Why do you think they made the exhaust side flow so much less then the intake side, while on your port job, you have the exhaust outflowing the intake?

Sam

05-06-2004, 12:06 PM	#1 (permalink)
LRStealth I'll take the case! Join Date: Aug 2000 Location: Little Rock Drives: A Big Nail. Trader Rating: (1)	Review: DevilmanVISA ported and polished heads!! These heads are amazing. The quality of work and attention to detail is stunning. I'm still working on my car after rebuilding the motor, but I wanted to throw up some pics of the heads and some flow numbers. The work included refurbishing the heads, 3 angle valve job, polished combustion chambers, and full port and polish including the oil passages. Let me get my engine working right and broken in and I'll post some times. For now, enjoy the pics! Thank you Frank (devilmanVISA) for doing such a great job!

05-06-2004, 12:07 PM	#2 (permalink)
LRStealth I'll take the case! Join Date: Aug 2000 Location: Little Rock Drives: A Big Nail. Trader Rating: (1)	Re: Review: DevilmanVISA ported and polished heads!!

05-06-2004, 12:10 PM	#3 (permalink)
Jeremy C Hitokiri Battousai Join Date: Jun 2002 Location: Detroit Drives: A car that runs Trader Rating: (47)	Re: Review: DevilmanVISA ported and polished heads!! Thanks for the pics! I've been thinking about sending my heads off to him but didn't know if I could afford it. What was shipping cost on those heads? __________________ 3STech.org - Because everyone can't be winners. Off topic and work safe

05-06-2004, 12:12 PM	#4 (permalink)
LRStealth I'll take the case! Join Date: Aug 2000 Location: Little Rock Drives: A Big Nail. Trader Rating: (1)	Re: Review: DevilmanVISA ported and polished heads!! Flowbench numbers: Lift Intake Before Intake After Percent Increase 0.1 86 91.9 6.86% 0.2 178 180.9 1.63% 0.3 232.5 254.6 9.51% 0.375 245 283.1 15.55% Lift Exhaust Before Exhaust After Percent Increase 0.1 76.6 136.3 77.94% 0.2 148 218.2 47.43% 0.3 193.1 252.3 30.66% 0.364 201.4 261 29.59%

05-06-2004, 12:26 PM	#7 (permalink)
VRMAN Dip-Set Join Date: Apr 2001 Location: Sandy Eggo Drives: insert unclever quip Trader Rating: (12)	Re: Review: DevilmanVISA ported and polished heads!! How do these heads compare in price/workmanship to those sold by Vendo companies? Good review. __________________ 1991 GS-T T3/T4 SCM32 366whp@26.5psi 2790lbs of torque steer

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05-06-2004, 01:25 PM	#8 (permalink)
DDI VR4 whaaaaa? Join Date: Feb 2002 Location: Virginia Drives: 1994 VR-4 Trader Rating: (6)	Re: Review: DevilmanVISA ported and polished heads!! How much did this cost? __________________ -Sean 1994 VR4 w/ 99 front conversion, Supercar Engineering Big Red Brakes with Coleman Rotors, PST CFDS, ~~ProBoost MBC, DSM Intercoolers~~, ACT Clutch, Fidanza Flywheel THE PROJECT BEGINS: AEM EMS, AEM WB, GM MAP/IAT, Apexi Boost Solenoid, AAM Dual Intake, ~~AAM TD05 Manifolds (coated), Small 16Gs~~ , 780cc injectors, FMIC, IPO Twin Fuel Pumps 2000 Jeep Cherokee - stock for now, Pioneer AVIC-N1 Mideast3s.com

05-06-2004, 01:30 PM	#9 (permalink)
devilmanVISA Hellfire Master Join Date: Sep 2001 Location: Running in your head Trader Rating: (21)	Re: Review: DevilmanVISA ported and polished heads!! That set of heads in the pics outflowed the 3KGT heads pretty much across the board by roughly 30cfm on both sides. The only real differences, other than the styles of porting, where that my heads have stock valves, while the 3KGT heads have oversized ferrea valves. But for those wanting to go the oversize valve route, I have an account with Ferrea so that's not an issue. If anyone has ANY questions feel free to ask. __________________ Who will survive and what will be left of them...

05-06-2004, 01:34 PM	#10 (permalink)
wraith resident evil Join Date: Sep 1999 Location: Oradell New Jersey Trader Rating: (15)	Re: Review: DevilmanVISA ported and polished heads!! Why do you think they made the exhaust side flow so much less then the intake side, while on your port job, you have the exhaust outflowing the intake? Sam