Dyno Test: Mod Progression - ZR-1 Net Registry Forums

LGAFF · 02-12-2012

Results from Dyno Jet test.....VETTE December 1997
Test of 91 with stock tune and stock exhaust manifolds....

Stock 305hp@5600 304ftlbs@4400

KN 310@ 5650 303@4400

+Borla 327@5750 314@5000

+EH Porting 345@5850 339@5150
**Porting was extrude hone ...28hp/29ftlbs increase at 5100

tomtom72 · 02-12-2012

Just curious, did they say if they port matched the I/H's to the head ports?

nice numbers with out a tune or headers. JMHO

LGAFF · 02-12-2012

They did not port match...

VetteMed · 02-12-2012

interesting info. Thanks for posting, Lee.

LGAFF · 02-12-2012

Stock Vs K& N

K&N(stock) vs Borla and K&N

Borla and K&N vs EH, Borla and K&N

1990 quasar blue · 02-13-2012

Wow only 305. I thought mine was a little weak when it only made 320/320 stock. Most seem to make 330 or so.

gbmidyear66 · 02-13-2012

My car (also a 1 or 19 Quasar) Dyno'd last summer at 358 with Flowmaster and a custom tune....

1990 quasar blue · 02-17-2012

Quote:

Originally Posted by gbmidyear66

My car (also a 1 or 19 Quasar) Dyno'd last summer at 358 with Flowmaster and a custom tune....

Not bad at all. That's three more hp than I got with ported plenum I/h, flowmaster catback and an HAT prom.

gbmidyear66 · 02-18-2012

I am hoping to break 380 with Intake, Plenum and TB porting I currently have in process. Will post Dyno results when this winter's project is complete

Corbusa · 02-18-2012

Do you guys have pictures to share of the ported areas? years ago I used to port match older heads , water pumps , intakes etc.. I would be interested in seeing some finish work- if possible.. For me when I get to the point of porting ,I'll send the heads to one of you Pro's on here. I won't gamble on a LT5 head..

02-12-2012	#1
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Dyno Test: Mod Progression Results from Dyno Jet test.....VETTE December 1997 Test of 91 with stock tune and stock exhaust manifolds.... Stock 305hp@5600 304ftlbs@4400 KN 310@ 5650 303@4400 +Borla 327@5750 314@5000 +EH Porting 345@5850 339@5150 **Porting was extrude hone ...28hp/29ftlbs increase at 5100 __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

02-12-2012	#2
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,609	Re: Dyno Test: Mod Progression Just curious, did they say if they port matched the I/H's to the head ports? nice numbers with out a tune or headers. JMHO __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

02-12-2012	#3
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: Dyno Test: Mod Progression They did not port match... __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

02-12-2012	#4
VetteMed Join Date: Mar 2009 Location: Orlando, FL Posts: 1,816	Re: Dyno Test: Mod Progression interesting info. Thanks for posting, Lee.

02-12-2012	#5
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: Dyno Test: Mod Progression Stock Vs K& N K&N(stock) vs Borla and K&N Borla and K&N vs EH, Borla and K&N __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 02-12-2012 at 07:23 PM.

02-13-2012	#6
1990 quasar blue Join Date: Feb 2004 Location: Ma Posts: 403	Re: Dyno Test: Mod Progression Wow only 305. I thought mine was a little weak when it only made 320/320 stock. Most seem to make 330 or so.

02-13-2012	#7
gbmidyear66 Join Date: Feb 2008 Location: Vancouver, BC Posts: 251	Re: Dyno Test: Mod Progression My car (also a 1 or 19 Quasar) Dyno'd last summer at 358 with Flowmaster and a custom tune....

02-18-2012	#9
gbmidyear66 Join Date: Feb 2008 Location: Vancouver, BC Posts: 251	Re: Dyno Test: Mod Progression I am hoping to break 380 with Intake, Plenum and TB porting I currently have in process. Will post Dyno results when this winter's project is complete

02-18-2012	#10
Corbusa Join Date: Sep 2011 Location: TN Posts: 577	Re: Dyno Test: Mod Progression Do you guys have pictures to share of the ported areas? years ago I used to port match older heads , water pumps , intakes etc.. I would be interested in seeing some finish work- if possible.. For me when I get to the point of porting ,I'll send the heads to one of you Pro's on here. I won't gamble on a LT5 head..