Didn't even want to post this.

[supr rt 4]

A bunch of us went last night to the dragstrip from the St.Louis SRT Club.
www.stlsrt.com

But heres why I didn't even want to post.You guys probably aint going to believe it.

I'm like way happy.Here is what the PT did last night.
Remember my GT is one of the 04 GT's that came with the HO engine option.

Here is what its got on the runs.
AGP Wastegate
Cold Air Intake
Stg.1
Turbo X Dualstage boost controler Low boost(12lbs),High boost(19lbs)
stock exhaust with muffler
M&H Racemasters cheater slicks with tread design
(p235/60-15's mounted on PT steel rims)
back seats out
traction control off
autostick pulled back in 1st and let the tranny shift itself.

First run motor,yep I said motor.Got the bottle on it too.

13.9/97 with a 2.034/60ft.

Next to runs was with a .012'' nitrous jet sprayed in the cold air intake right before the turbo.

13.453/102.38 with a 2.056/60ft.
Last run was a 13.447/100.12 with a 1.995/60ft.

I wieghed my bottle before I went and when I got home and all it used was about a pound between the 2 runs.So about a half pound a run.
I don't know how much of a horsepower hit that is but it can't be much.

I will probably bump it up to a .028'' jet like I had on the SRT when it went 12.8/112.96 The SRT was useing about 3/4 of a pound per run.

Anyway real happy with the PT so far.And like I said thats why I didn't want to post.Didn't think nobody would believe me.

Oh and if any body wants take a look at the St.Louis SRT Site.Lot of interesting stuff going on there.

Some of the club members are also supporting Vendors of the club and they are makeing some pretty cool products that will also work on the PT's.

Here is the website again if your interested in checking it out.
www.stlsrt.com

Anyway see ya.
George

[PTGT_Boy]

It's a believable time, down at California Speedway, rice_killing_gt was running a dual stage boost controller and some drags and got 14.2 secs. [8]

[sakigt]

Oh, I believe you. But dry nitrous kits are scary to work with. Im sure you were leaning the hell out of that PT. You have some kind of EGT gauge on there?

[supr rt 4]

quote:Originally posted by sakigt

Oh, I believe you. But dry nitrous kits are scary to work with. Im sure you were leaning the hell out of that PT. You have some kind of EGT gauge on there?

About 4 members of the club and myself went in on a wideband meter.And I can't remember the name of it for nothing right now but I will get the name of it and let you know.

But anyway I did the same thing on the SRT and had a perfect 12.0 to 12.1 air/fuel ratio all the way to red line.

With the .012'' and .028''jet it realy aint blowing that much nitrous to amount to anything.Basicaly just acting as a real efficiant internal intercooler if you think about it.

Did the same thing on a Grand National I had.Cools the whole intake system nice.

If you pull over right after the run and pop the hood all of the intake system includeing the intercooler is cold.

Last night when I was on the bottle I actualy watched my temperature gage go down by the end of the run.On the motor only no bottle the tempurature would climb a little.

So I'm pretty sure its doing its job right.

Had pretty good luck with the SRT and the Grand National.
I had a 97 Z/28 that I had a 100 horse dry shot(completly dry) right before the butterflys on the throttlebody and worked out nice also.

And also I usualy pull the plugs after the runs and they are all a slight tinge of brown.

But anyway thats what we have been useing to watch or air fuel.
Some of the guys also have Stg.2 injectors on thier Stg.1 cars with a map clamp.Another guy has Stg.2 with the bottle and a wet nitrous system and the map clamp.So very nice little tool.

George

[supr rt 4]

Inovate Motorsports makes the wideband 0-2 air/fuel ratio meter that we got.

George

[Mike-in-Orange]

Hey, I believe you too! The R_K_GT time of 14.2 that PTGT_Boy is referring to was run in 90 degree California dry heat, with the typical stiff headwind at California Speedway. I think he was only running 17 psi at the time with his TurboXS dual stage MBC. Not sure when he hit the second stage compared to when you hit yours, so that would probably have something to do with ET as well. I am VERY seriously considering that setup on my car 'cause I'm totally stuck at consistant 14.8~14.9 ETs.

[tthrift]

don't go by the AFR readings you got from your srt4 on your gt cruiser. i have a lm1 wideband 02 sensor hooked up and my buddy has a srt with the same setup as i have but he has to add fuel when booseing 18 psi till redline and on my gt i have to pull 20% and more to get my afr in the 11.2 and 11.5

the way mopar setup our stage I is at WOT you are dumping fuel like 9.6 afr .

hope this helps , our cars may have the same engine but they are totally different

thanks tommy

quote:Originally posted by supr rt 4

About 4 members of the club and myself went in on a wideband meter.And I can't remember the name of it for nothing right now but I will get the name of it and let you know.

But anyway I did the same thing on the SRT and had a perfect 12.0 to 12.1 air/fuel ratio all the way to red line.

With the .012'' and .028''jet it realy aint blowing that much nitrous to amount to anything.Basicaly just acting as a real efficiant internal intercooler if you think about it.

Did the same thing on a Grand National I had.Cools the whole intake system nice.

If you pull over right after the run and pop the hood all of the intake system includeing the intercooler is cold.

Last night when I was on the bottle I actualy watched my temperature gage go down by the end of the run.On the motor only no bottle the tempurature would climb a little.

So I'm pretty sure its doing its job right.

Had pretty good luck with the SRT and the Grand National.
I had a 97 Z/28 that I had a 100 horse dry shot(completly dry) right before the butterflys on the throttlebody and worked out nice also.

And also I usualy pull the plugs after the runs and they are all a slight tinge of brown.

But anyway thats what we have been useing to watch or air fuel.
Some of the guys also have Stg.2 injectors on thier Stg.1 cars with a map clamp.Another guy has Stg.2 with the bottle and a wet nitrous system and the map clamp.So very nice little tool.

George

[Big Al]

With the combination of parts and usage, the times are believable.
However I will not attempt to repeat the experience.

One question though - why not spray the nitrous after the turbo?

[supr rt 4]

quote:Originally posted by Big Al

With the combination of parts and usage, the times are believable.
However I will not attempt to repeat the experience.

One question though - why not spray the nitrous after the turbo?

Tryed it both ways on the SRT.
1st tryed spraying after the throttle body and car picked up pretty good (about 3 tenths).
Then used the same nitrous nozzle and jet size and mounted before the turbo,ran it again at the track that way the same night and car picked up (about 6 tenths).

So when I put the bottle on the PT I installed the nitrous nozzle before the turbo because thats were the SRT made more power.Also the same thing on the Grand National(tryed both ways and before turbo showed the biggest gain).

Remember my system is dry also.
If it was a wet system I wouldn't want to spray it before the turbo.
I know the nitrous and fueL is supposed to atimize(I'm not spelling that right ATIMIZE;The nitrous and fuel mixed together is what I mean).
But I don't think I would want the fuel going through the turbo,pipes and intercooler.
So if I had a wet system I would definatly spray it after the throttlebody.

tthrift,
Your PT was that rich with Stg.1 (9.6)? At 18lbs. of boost?

What I was going to do was get Stg.2 injectors with my Stg.1 computer and the map clamp and still run the dry nitrous jet but up the jet size to like a .036'' or bigger and check it on the wide band.

One of the guys in the SRT club has Stg.2 injectors on his Stg.1 SRT and other mods of course and he has his car clamped at around 12.0.
He is running around 13.1/109 motor.
When the clamp is off his is at like 9.0.

And yes I got to get over and get the PT on the wide band for sure so I know.If thats the case like what yours showed maybe I won't have to get the bigger injectors.That would be cool.

George

[bigtommy83]

how did you get the stock 15 steelies to work without rubbing on the caliper? did you use spacers or what year steelies did you use?