L67 nozzle location & question

JasonZ31 · 07-05-2007

I have been considering "seasonally" moving my devilsown pump and controller to my winter car which is a 98 Pontiac Grand Prix GTP. The car just has intake/3.4"/DP/1.9rockers/catback but still gets as much as 5 degrees of KR at 70F IAT with a DHP 1.0 tune

I did search around a little but didn't find much.
I have a couple questions:
1. Spraying before or after the SC. Obviously I would need to spray behind the maf (I can make a tb spacer pretty easily), and I see a lot of people doing this, but I'm unsure as to how it would affect the coating on the sc paddles. I have heard that the teflon on the gen3 M90 blowers flakes off easily and that's why the gen5's have an epoxy coating. If I sprayed it after, then there's the issue of where to put the nozzle?
2. How much advantage would a kit have on this car? That is, without getting another tune or buying software and hooking up my wideband to tune it myself? My Z's are a completely different ballgame as that equipment was already purchased and installed long ago.
Could I also step down to a smaller pulley and use a slightly larger nozzle, or just use a very small nozzle to remove the KR I'm already getting with the 3.4" pulley? Any advice or experience, links etc on this topic I would like to see! Thanks in advance.

pacemkr86 · 07-05-2007

Your in luck cause Rocket and Dvldoc know all about these GTP's.

Lets see what they have to say

JasonZ31 · 07-30-2007

Bump?

...

Rocket468 · 07-31-2007

Not sure how i missed this thread :(

I find it easiest to just put a nozzle in the spacer. And injecting thru the blower. I am at the opion that its luck of the draw on the teflon coming off. Bial ran afew bottles of 100 shot thur his, propane, alcohol etc. His had over 100k and still looked realy good. I have seen local guys that have ran nothing and the rotors are striped. So i feel its just luck of the draw.

07-05-2007	#1 (permalink)
JasonZ31 Water Injection Newb Year: 1984 Make: Nissan Model: 300ZX Turbo Join Date: Jul 2007 Posts: 11	L67 nozzle location & question I have been considering "seasonally" moving my devilsown pump and controller to my winter car which is a 98 Pontiac Grand Prix GTP. The car just has intake/3.4"/DP/1.9rockers/catback but still gets as much as 5 degrees of KR at 70F IAT with a DHP 1.0 tune I did search around a little but didn't find much. I have a couple questions: 1. Spraying before or after the SC. Obviously I would need to spray behind the maf (I can make a tb spacer pretty easily), and I see a lot of people doing this, but I'm unsure as to how it would affect the coating on the sc paddles. I have heard that the teflon on the gen3 M90 blowers flakes off easily and that's why the gen5's have an epoxy coating. If I sprayed it after, then there's the issue of where to put the nozzle? 2. How much advantage would a kit have on this car? That is, without getting another tune or buying software and hooking up my wideband to tune it myself? My Z's are a completely different ballgame as that equipment was already purchased and installed long ago. Could I also step down to a smaller pulley and use a slightly larger nozzle, or just use a very small nozzle to remove the KR I'm already getting with the 3.4" pulley? Any advice or experience, links etc on this topic I would like to see! Thanks in advance. __________________ 84 Z31 300ZX - 453rwhp/484rwtq http://www.redz31.com http://www.z31performance.com http://www.vg30et.com http://www.z31parts.com

07-05-2007	#2 (permalink)
pacemkr86 DevilsOwn Tech Year: 86 Make: Buick Model: T Type Join Date: Oct 2005 Posts: 644	Re: L67 nozzle location & question Your in luck cause Rocket and Dvldoc know all about these GTP's. Lets see what they have to say __________________ Phil Underwood My Turbo Buick

07-30-2007	#3 (permalink)
JasonZ31 Water Injection Newb Year: 1984 Make: Nissan Model: 300ZX Turbo Join Date: Jul 2007 Posts: 11	Re: L67 nozzle location & question Bump? ... __________________ 84 Z31 300ZX - 453rwhp/484rwtq http://www.redz31.com http://www.z31performance.com http://www.vg30et.com http://www.z31parts.com

07-31-2007	#4 (permalink)
Rocket468 DevilsOwn Staff Year: 2000 Make: Pontiac Model: Grand Prix Join Date: Apr 2005 Posts: 1,103	Re: L67 nozzle location & question Not sure how i missed this thread :( I find it easiest to just put a nozzle in the spacer. And injecting thru the blower. I am at the opion that its luck of the draw on the teflon coming off. Bial ran afew bottles of 100 shot thur his, propane, alcohol etc. His had over 100k and still looked realy good. I have seen local guys that have ran nothing and the rotors are striped. So i feel its just luck of the draw.