Do the hypertech and Jet chips really work or is it just ? deos anyone have any of these in there car? If they work wich one is better for an increse in Hp

 

They work, just NOT well enough to be worth the money they cost. You DO NOT make big gains in horsepower using a Prom (chip) in the ECM on stock engine.

 

I was told that there is a member named Kevin Lorenzen, who's Dad goes by Dyno Don. I'm trying to reach them to burn a Chip for my 89. If you locate them, shoot me an e-mail

I had a Hyper Tech Chip before when I had an 89 Vette motor in it. Now it has a lower compression motor and an accell intake. My stock prom no longer works well.

 

89RagDude, you can reach Kevin here:

https://www.thirdgen.org/forums/member.php?u=133

 

If you go read on the DIY prom boards they talk all about those chips. None of it is good. They add a little timing advance and tell your fans to come on sooner. Thats about it. Do not waste your money.

 

your better off having brian at tbichips.com burn you one then buying those. the best option is a DIY yourself tuning like dynamicefi.com