392 Swap and Techco SC Install by 03HDFB

9 minute(s) of a 68 minute read

Updates:
I haven't hit the drums yet...I've been working with Russ Anema via e-mail. Its working out quite well!! I'm still running the 3.125" and 5" pulleys to get a solid tune. My OBDII and Zeitronix data logs are capturing all the needed data and Russ has been Johnny on the spot.....kicking me back tunes! I have (3) new iterations to try out this weekend....which should put me ready to play the pulley game.
The motor's running perfectly....pulling 5-6 PSI......with lots of power!
G.T.

3/12/10

Update:
Well, the weather here sucks....but I've managed to test tunes for about a week and have solidified my 6 PSI no meth tune!! Yeah....pretty Jazzed!
I've noticed at peek boost (6psi) I'm dropping 10 PSI of fuel pressure at the rails....not affecting my AFR's but none the less. I'm double checking my Kenne Bell BAP opperations, but it looks like I'll be reworking the fuel delivery system to move to my next boost level!!
It's all good though....I still have plenty of RND time before the season starts!
G

3/21/10

The Stage 3 of my build is working just as planned! The car is build great power and is pretty street-able. I still have yet to hit the drums.....I've been tuning on the street with all my sensors....and the tune is pretty much spot on. I still have (1) code that's giving me some trouble P2173 Throttle Actuator...a catch all code! Russ has another tune for me to try....that might take care of it!!
With my street tire....or my old Dr's.....I could pretty much roast the tires as far or whenever I wanted to....I'm still only pushing 5 PSI....and Peak about 6 PSI. During a Freeway cruise at 50....I was able to bark the tires....with a stab of the throttle!!
I'm in the process of reworking my fuel delivery system, Because I'm dropping 10 PSI fuel pressure at the rails when I Peak at 6 PSI boost....even with the Kenne Bell BAP turned all the way up!! It's not affecting my AFR's, but I have some more pulley's waiting to be installed.....as well as my Meth injection kit....that's just itching for me to be turned on!!!
I'm running the NEw Nitto NT05R's 315x35x20's.....Its a nice compound!!! I gave them a good heat up lastnight.....and even on Street Blacktop (Not Track Prep'ed) I was able to hook up.....and it felt GOOOOOOOOOD!
I'm only gona run 5 PSI with no meth on April....Then Swap some pulley's...Tune on the street to get a solid tune......Then finally go hit the drums and tune for the meth! I'm getting close!!!

3/25/10

Update:
Well, the 5-6 pasi tuning is just about wrapped up!! I'm gona gather another 6 WOT runs to finalize the HP end at this PSI. I had (1) nagging code.....That Russ resolved and all is good! The car runs great and is making good power.
I'm Gona hit the Bremerton Test N Tune April 2nd to find the 1/4 mile E/T at this level......and have some fun!! Then, Back to the garage to Install the new fuel delivery system, Swap the pulleys, test fire the Meth Kit. I'll tune on the street again with the Help of Russ Anema ... and make a solid tune at the new PSI level.....then head to the Dyno to solidify it and tune for the meth!
Nothing but Smiles Right Now!!
G.T.

5/10/10

Well,
Finally made it to the track to test out my 5 psi / No Meth set-up. the Da's hovered around 243 most of the day. I ran 92 Octane at 4400 Lbs with 20" Nitto NT05R's Dr's (315's on 9" wheel @ 20 PSi). I'm still running abit fat at WOT....about 10.3-10.5 AFR and also haven't put the car on the drums yet...Russ and I tuned the car on the streets. The car ran flawless....but I'm glad the new tranny is almost here!!!
I got (4) runs in...all I needed to close the book at 5 Psi... All (4) runs were 11.44x's @ 118.95x MPH with 1.59x 60'. Yeah....very consistant!!!
So, I just recieved my fuel delivery upgrade...pretty stoked to install it!! As soon as I have the fuel pressure where I want it...I'll be slapping on 4-5 more PSI and tune for the meth injection. I'll tune the meth...on the drums, so I can get some dyno numbers to tie with my E/T's
All is good here in Washington State!! The weekend track event was the season opener for the Pac N West Car Club Challenge....and we opened the Season with 17 Members on the Mopar Drag Team.....We're shooting for 1st place this season!

6/10/10

Well,
The weather still sucks here. The last (2) track events have been rained out. I've been busy with my buddies build....so I haven't finished my mods needed to up my boost, but I did get the last of the items I wanted for the engine....installed!!! My buddy really wanted my Techco Strut tower brace....so he purchased me the Drake Muscle Brace and had it polished...Its a nice kit and well thought out!! Along with that...I got my Moroso sheet metal Radiator & Steering Res installed and located my Labonte Water/Meth Injection brain. All is good! We have a few more items to finish on my buddies build:
http://www.challengertalk.com/forums/527937-post1.html Then I can work my cooling fan mods to make room for bigger LWR Pulley...Yeah...Up'en the boost!













8/27/10

I've spent the last 2 weeks working fuel delivery mods for my current 12.5 PSI Pulley set-up. I had been running the Arrington twin 255 LPH walbro fuel pump set-up with -6 Braided line out of the tank and #47 Injectors. which got me thru my 5 PSI set-up and most of the way thru my 12 PSI. During tuning of the 12 PSI set-up I noticed a 13 PSI drop in fuel pressure above 4800 RPM.Minus the 12 PSI positive Boost..put me at #35 PSI Flow thru the injectors at WOT. Not a deadly issue..I could fool the system by running #80 Injectors and a great deal of tuning, but I wanted a good Fuel Base incase I up the PSI more or swap for a bigger motor. So, I went to town to accomplish 60 PSI +.thru my entire power band. 1st Off I moded the Arrington Fuel Adapter from both pumps over to the Filter Bucket. Then I Moded the Filter Bucket for a -6 Braided External Return line and defeated the factory 60 PSI pop off Valve. After that I mounted an Aeromotive Boost Ref. Fuel Pressure Regulator in the trunk running -6 Braided lines from Tank to FPR. I went with -8 Braided main fuel line from FPR to the injector rails. Once I had that all solid and looking sweet.I re-installed my Adjustable KB Boosta Pump and set it half way thru its voltage ramp. I didn't have time lastnight to data log my fuel pressure.I just took the car for a quick squirt down the freeway to watch my AFR's. I started this mod with my AFR's spiking to 13.5 to 14.0 @ 6K RPMs as the fuel pressure dropped and now my AFR's are in the 9's and lower!!!! Yeah.picked up over 4 points..plenty of fuel now to do as I please!!! I'll data log today and should have a very solid tune by sometime tonight..Its time to throw the timing back in and adjust the tune!!! The Rocket is back on the Road!!
I'm Pretty Stoked!!
Gregory

Filter Bucket with -6 Braided and Return and fuel out



-6 Main Fuel Line and Return In and -8 Line to Rails....Running thru the Trunk



KB Boosta Pump, Aeromotive Boost ref FPR and -6 Lines thru the trunk



-8 Main Fuel Line and Boost ref Line from trunk to Engine bay



-8 Main Fuel Line Conneted to fuel Rails



Final Product