W/E injection

chargedGP · 11-17-2005

Hey guys, new here. Been around GTP's for about a year 1/2. I'm interested in getting an injection kit, but have a few questions.

Can I use an injection kit without the use of a scanner?

Is it hard to tune especially when mixed with ethanol vs. pure water?

Can I have it tuned once and then be done with it or does it require constant tuning?

Mods: FWI
DHP 1.0
1:9;1 modified rockers
TB spacer
PEM's
autolite 104's
3" downpipe
3.25 pulley
180* t-stat

Best 1/4 mile time: 13.9 @ 99 (90* out and very humid)

Really wanna run low 13's.

dvldoc · 11-17-2005

Yes, you can install it without a scan tool, Since you do not have a mini-afc or power tuner you wouldn't be able to do much as far as tunning goes. a 50/50 mix works the best as far as a mix goes. Water cools far better than alcohol.

Most people including myself just use -20 washer fluid. The walmart brand is 40% methanol. I run a 2.8 pulley with no problem and 25 degrees of timing on that mix.

chargedGP · 11-17-2005

How much potential power would I be loosing by not tuning this setup?

dvldoc · 11-18-2005

Grand prixs tend only to gain HP with W/I since our outlet temps are so high. With your mods you can bet you see a bit of knock with no tunning and the raised timing of a DHP.

Kill the KR and you'll get full timing. On average the GTP PCM adds a few degrees with W/I. Some stock pcms like on my wifes GTP would see up to 18 degrees at WOT.

You should pick up a good 10 to 15hp right off the bat. Remember it's the octane that's going to bring your power up. On a GTP it's a noticible difference as soon as the alcohol hits.

chargedGP · 11-18-2005

thank you. I will probably pick up a kit in a month or so, put a 3.0 pulley on and get a scan by a local gp club member.

Rocket468 · 11-23-2005

You will be happy with our kit when you desided to purches it. The digital controler is hands down the best on the market.

11-17-2005	#1 (permalink)
chargedGP Water Injection Newb Join Date: Nov 2005 Posts: 3	W/E injection Hey guys, new here. Been around GTP's for about a year 1/2. I'm interested in getting an injection kit, but have a few questions. Can I use an injection kit without the use of a scanner? Is it hard to tune especially when mixed with ethanol vs. pure water? Can I have it tuned once and then be done with it or does it require constant tuning? Mods: FWI DHP 1.0 1:9;1 modified rockers TB spacer PEM's autolite 104's 3" downpipe 3.25 pulley 180* t-stat Best 1/4 mile time: 13.9 @ 99 (90* out and very humid) Really wanna run low 13's.

11-17-2005	#2 (permalink)
dvldoc DevilsOwn Staff Join Date: Apr 2005 Posts: 2,071	Re: W/E injection Yes, you can install it without a scan tool, Since you do not have a mini-afc or power tuner you wouldn't be able to do much as far as tunning goes. a 50/50 mix works the best as far as a mix goes. Water cools far better than alcohol. Most people including myself just use -20 washer fluid. The walmart brand is 40% methanol. I run a 2.8 pulley with no problem and 25 degrees of timing on that mix.

11-17-2005	#3 (permalink)
chargedGP Water Injection Newb Join Date: Nov 2005 Posts: 3	Re: W/E injection How much potential power would I be loosing by not tuning this setup?

11-18-2005	#4 (permalink)
dvldoc DevilsOwn Staff Join Date: Apr 2005 Posts: 2,071	Re: W/E injection Grand prixs tend only to gain HP with W/I since our outlet temps are so high. With your mods you can bet you see a bit of knock with no tunning and the raised timing of a DHP. Kill the KR and you'll get full timing. On average the GTP PCM adds a few degrees with W/I. Some stock pcms like on my wifes GTP would see up to 18 degrees at WOT. You should pick up a good 10 to 15hp right off the bat. Remember it's the octane that's going to bring your power up. On a GTP it's a noticible difference as soon as the alcohol hits.

11-18-2005	#5 (permalink)
chargedGP Water Injection Newb Join Date: Nov 2005 Posts: 3	Re: W/E injection thank you. I will probably pick up a kit in a month or so, put a 3.0 pulley on and get a scan by a local gp club member.

11-23-2005	#6 (permalink)
Rocket468 DevilsOwn Staff Year: 2000 Make: Pontiac Model: Grand Prix Join Date: Apr 2005 Posts: 1,126	You will be happy with our kit when you desided to purches it. The digital controler is hands down the best on the market.