I have completed a so called "stage 1" for my truck, and am pleased with the results. I will drive it for a long while and enjoy it. I relaly dont dare to add more to it now because of the stock driveline and trans. It has great power and is real fun to drive
My truck is an early 99 ext. cab long bed. and I have added a home built open element air intake, Predator tuner at 100HP, boost and pyro gauges(pre-turbo), and a Magnaflow 4 in SS, with 3.5 DP. My only last issue to resolve is the overboost situations when you stand on it, I have regulator coming for the MAP sensor. It willingly tries to blast past 25 psi of boost. With the new exhaust, I dont have to stare at the pyro so much, it seems to have lowered EGTs about 100-200 degrees over my previous setup of stock exhaust and Walker BTM muffler, (no soot can). The exhaust system has added more midrange and upper RPM power, and will easily light up one tire, (its a peg leg truck ). In fact off the line traction is an issue now.

Those of you that may have dynoed similar combinations, or have seen numbers with this type of combo, where approx. may I be at for power?

Many thanks to those of you who have given me advice!

Eric

 

Eric,
I am at the exactly same point with my truck. We have done almost the same mods and I am anxious to see the answers to your post.

 

TTT , anyone?

 

I was at a dyno event yesterday, and saw similar trucks put down numbers in the 300hp range. That dyno is notorious for understatement, however. The real numbers might be in the 310-320rwhp range.
I hope this helps.

 

I doubt if you are more than 270-280 rwhp with the SES light on. It'll probably push right around 300 whe you fix that.

 

eeglot I have a stupid question, why do you have your pyro pre-turbo, dont you want the temp of the outlet air not the incoming.Just asking I never had to deal with a turbo before.

 

No. The EGT gauge is there to protect the engine, not the turbo, so we mount the pyro as close to the exhaust manifold as possible.

 

Yep........I am getting both turbo, and wastegate codes, sometimes when I really get on it. I will add the regulator, and then possibly even add a Big head wastegate

 

As cookie said, the pyro is there to protect the engine, not the turbo. The best place to mount the probe is in the exhaust manifold. This gets the actual reading of the exhaust temps. Any probe that is mounted post-turbo can only help you make an educated guess as to the exhaust temps.