Need some info

ShelbyMopar · 03-28-2008

1991 Daytona Shelby, 2.5L, 50 trim hybrid turbo, 24-29 PSI, depending on street/race settings in calibration.

So I used the calculator, and I should be looking at a 7.38 GPH Nozzle... 6000 RPM max.

The kit I have came with an M3 and M5 nozzle, so looks like I will need to be upgrading the nozzle.

Also, it is a 2 bar progressive kit, but I can just swap controller housings to a 3 bar, correct?

I'm thinking of getting the outside mount 7 GPH, nozzle. Is it ok to just drill and tap it into a charge pipe near the throttle body?

Thanks,

ShelbyMopar · 03-28-2008

Never mind, found my answers.

Looks like I will have to buy a new controller housing and reprogram/reflash the Progressive Controller for the 3 bar through the walkthrough on this site.

But is a 7GPH nozzle too small for what I need? I looked at a thread one one of the boards I frequent, and some guys are running 15 GPH nozzles @ 30 PSI.

I think I should maybe go with a bigger nozzle? That way I could bump timing up a bit as well. This will be mostly a 50/50 mix.

Some of the mods to the car are:

Rebuilt 2.5 shortblock
Ported and rebuilt 782 head with all new valvetrain
T3/T4 Hybrid turbo, 50 trim, w/ stage 3 0.63 AR turbine housing and ATP 3" V-band swingvalve
52 PPH Mopar injectors,
255 L/Hr fuel pump
Massive front mount intercooler, 2.5" piping
Custom cal @ 24 PSI boost "street" setting
OBX limited slip diff
SPEC Stage 3 clutch
Etc... etc...

I'm planning to hit 350-400 WHP on this setup if I can, at 2000+ ft elevation.

Rocket468 · 03-28-2008

30psi is going to cause the nozzles to act poorly. You should try what you have and montor you air intake temps. If there over 100 deg then you should go to a bigger nozzle. Just because someone is running X size nozzzle does not always mean its what they should have. This is not the kinda item that bigger is always better.

ShelbyMopar · 03-28-2008

Quote:

Originally Posted by Rocket468

30psi is going to cause the nozzles to act poorly. You should try what you have and montor you air intake temps. If there over 100 deg then you should go to a bigger nozzle. Just because someone is running X size nozzzle does not always mean its what they should have. This is not the kinda item that bigger is always better.

Well the kit I have came with an 3 GPH, and 5 GPH... And even the calculator said 7+ GPH.

I mean, I could run the 5 GPH nozzle and see how my wideband reads in the higher boost, but the point of the system for me was so that I don't have to run race gas all the time, and still get alot of power. And I have to order the different controller case anyway, + I live in Canada, so shipping usually takes awhile. + customs of course. So I'd like to get it all ordered right the first time...

Rocket468 · 03-28-2008

the cacuator is just a best guess. The only way to know for sure is montoring your IAT temps. Who knows a 3gph might be what you need "dont' know till you tune". I would start off with the 5 because i think its probley going to be a better match to your mods. See how the car reacts to it before you go spending money on something else.

ShelbyMopar · 03-28-2008

Ok, I'll try with the 5 GPH and see if it leans out... I'll just have to keep putting race fuel in it until I have it tuned for the alchy injection and no race fuel.

So I can still use the 2 bar Progressive Controller after "reprogramming" it to a 3 bar, just the numbers on the case won't be accurate?

I'd rather order the case + new nozzle at the same time to save on shipping and customs all the way up here...

03-28-2008	#1 (permalink)
ShelbyMopar Water Injection Newb Year: 1991 Make: Dodge Model: Daytona Shelby Join Date: Mar 2008 Posts: 10	Need some info 1991 Daytona Shelby, 2.5L, 50 trim hybrid turbo, 24-29 PSI, depending on street/race settings in calibration. So I used the calculator, and I should be looking at a 7.38 GPH Nozzle... 6000 RPM max. The kit I have came with an M3 and M5 nozzle, so looks like I will need to be upgrading the nozzle. Also, it is a 2 bar progressive kit, but I can just swap controller housings to a 3 bar, correct? I'm thinking of getting the outside mount 7 GPH, nozzle. Is it ok to just drill and tap it into a charge pipe near the throttle body? Thanks,

03-28-2008	#2 (permalink)
ShelbyMopar Water Injection Newb Year: 1991 Make: Dodge Model: Daytona Shelby Join Date: Mar 2008 Posts: 10	Re: Need some info Never mind, found my answers. Looks like I will have to buy a new controller housing and reprogram/reflash the Progressive Controller for the 3 bar through the walkthrough on this site. But is a 7GPH nozzle too small for what I need? I looked at a thread one one of the boards I frequent, and some guys are running 15 GPH nozzles @ 30 PSI. I think I should maybe go with a bigger nozzle? That way I could bump timing up a bit as well. This will be mostly a 50/50 mix. Some of the mods to the car are: Rebuilt 2.5 shortblock Ported and rebuilt 782 head with all new valvetrain T3/T4 Hybrid turbo, 50 trim, w/ stage 3 0.63 AR turbine housing and ATP 3" V-band swingvalve 52 PPH Mopar injectors, 255 L/Hr fuel pump Massive front mount intercooler, 2.5" piping Custom cal @ 24 PSI boost "street" setting OBX limited slip diff SPEC Stage 3 clutch Etc... etc... I'm planning to hit 350-400 WHP on this setup if I can, at 2000+ ft elevation.

03-28-2008	#3 (permalink)
Rocket468 DevilsOwn Staff Year: 2000 Make: Pontiac Model: Grand Prix Join Date: Apr 2005 Posts: 1,101	Re: Need some info 30psi is going to cause the nozzles to act poorly. You should try what you have and montor you air intake temps. If there over 100 deg then you should go to a bigger nozzle. Just because someone is running X size nozzzle does not always mean its what they should have. This is not the kinda item that bigger is always better.

03-28-2008	#5 (permalink)
Rocket468 DevilsOwn Staff Year: 2000 Make: Pontiac Model: Grand Prix Join Date: Apr 2005 Posts: 1,101	Re: Need some info the cacuator is just a best guess. The only way to know for sure is montoring your IAT temps. Who knows a 3gph might be what you need "dont' know till you tune". I would start off with the 5 because i think its probley going to be a better match to your mods. See how the car reacts to it before you go spending money on something else.

03-28-2008	#6 (permalink)
ShelbyMopar Water Injection Newb Year: 1991 Make: Dodge Model: Daytona Shelby Join Date: Mar 2008 Posts: 10	Re: Need some info Ok, I'll try with the 5 GPH and see if it leans out... I'll just have to keep putting race fuel in it until I have it tuned for the alchy injection and no race fuel. So I can still use the 2 bar Progressive Controller after "reprogramming" it to a 3 bar, just the numbers on the case won't be accurate? I'd rather order the case + new nozzle at the same time to save on shipping and customs all the way up here...