Stage 1 Porting - Page 2 - ZR-1 Net Registry Forums

z proud · 10-24-2010

any dyno # for stage 1 and stage 2?

LGAFF · 10-24-2010

No and honestly i doubt there would be a large variance, I had planned on a dyno test but unfortunately I have bad rings.

My stage 1 is not much different than what many consider a full port job. If you are not port matching the heads you wouldn't want 36mm at the head face anyway, as there would be air turbulance from going from 36mm to 34mm(air hitting a wall)

The biggest obstacle is the Inj bosses and I take them out.

Scrrem · 10-26-2010

Quote:

Originally Posted by LGAFF

Still open to doing these

Stage I for $450
Stagr for $700

Lee,
Give this some consideration, what's the turn around on a Stage I job?
Rich

LGAFF · 10-26-2010

Pretty quick, I already have a set of IH ported, I would just need to do a Plenum which only takes a weekend to complete. The IHs are black, would need to be painted or PCd

If you do not want an exchange, meaning me porting your exact plenum and IH, I would say 3 weeks. I do have a meeting in CT from 11/9-11/12

LGAFF · 11-24-2010

Just an FYI, I will be trying out a Powdercoater and will let everyone know the results, he already has done a few sets of wheels for me......

Siamese port project starts soon and I will be pulling my ported intake off soon, will be available for core and $.

LGAFF · 02-19-2011

Shot of what I consider Stage I...these are coming off the 90 and will exchance for stock pair for $450, the $450 includes porting your plenum. These IHs are currently black.

Paul Workman · 02-20-2011

Quote:

Originally Posted by LGAFF

Shot of what I consider Stage I...these are coming off the 90 and will exchance for stock pair for $450, the $450 includes porting your plenum. These IHs are currently black.

Thanks for sharing, Lee. Mine (below) are modeled after Pete and Marc H's. I don't know what "stage" they would be equivalent to, but generally follow Marc's line of thinking; "...you really can't make the plenum and the IHs too big on the LT5." - don't know what "Stage" they would equate to.

But, in comparison, there seems to be a bunch more meat and flow shaping to be cut around the secondary injector boss in the pic of your IH, no? And, it looks like there is little or no expansion of the IH outlet into the heads. I'm not critiquing, but just trying to get an idea of your "Stage-I specification". For some reason, this induction design vs. performance stuff always fascinates me, I recon.

P.

GregCrowe · 02-20-2011

Has anyone done any before/after dyno tests from just porting the Plenum and Injector Housings ?

tomtom72 · 02-20-2011

Quote:

Originally Posted by GregCrowe

Has anyone done any before/after dyno tests from just porting the Plenum and Injector Housings ?

check out this post by Locobob:

http://www.zr1.net/forum/showthread.php?t=13986

10-24-2010	#1
z proud Join Date: Aug 2005 Location: Pa Posts: 114	Re: Stage 1 Porting any dyno # for stage 1 and stage 2?

10-24-2010	#2
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: Stage 1 Porting No and honestly i doubt there would be a large variance, I had planned on a dyno test but unfortunately I have bad rings. My stage 1 is not much different than what many consider a full port job. If you are not port matching the heads you wouldn't want 36mm at the head face anyway, as there would be air turbulance from going from 36mm to 34mm(air hitting a wall) The biggest obstacle is the Inj bosses and I take them out. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 10-24-2010 at 09:43 PM.

10-26-2010	#4
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: Stage 1 Porting Pretty quick, I already have a set of IH ported, I would just need to do a Plenum which only takes a weekend to complete. The IHs are black, would need to be painted or PCd If you do not want an exchange, meaning me porting your exact plenum and IH, I would say 3 weeks. I do have a meeting in CT from 11/9-11/12 __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 10-26-2010 at 09:17 AM.

11-24-2010	#5
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: Stage 1 Porting Just an FYI, I will be trying out a Powdercoater and will let everyone know the results, he already has done a few sets of wheels for me...... Siamese port project starts soon and I will be pulling my ported intake off soon, will be available for core and $. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 11-24-2010 at 08:55 PM.

02-19-2011	#6
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: Stage 1 Porting Shot of what I consider Stage I...these are coming off the 90 and will exchance for stock pair for $450, the $450 includes porting your plenum. These IHs are currently black. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

02-20-2011	#8
GregCrowe Join Date: Sep 2004 Location: Oklahoma Posts: 111	Re: Stage 1 Porting Has anyone done any before/after dyno tests from just porting the Plenum and Injector Housings ?