Patriot h/c dyno
Thread Starter
Teching In
Joined: Sep 2008
Posts: 9
Likes: 0
From: Greensboro NC
Patriot h/c dyno my 99 ss with the ls6 stage 2 heads and the 225/229 580/590 114lsa NO BOLT-ONS made 360hp 350tq.
I cant post my dyno sheet at this time (i dont know how) the tourqe curve was very nice making peak tq at 4600rpm and peak hp at 6000rpm. this package made excelent power (through stock exaust manifold) and pulls very strong from around 2500-6400.
This is my first cam ls1 car, i kinda wish i would have went with a bigger cam but the drivablilty and gas mileage is great. its a 6 speed car with a 4:11 gear gas mileage in the city is around 18-19 and on trips around 24-26.
I didnt plan on heads and cam before bolt-ons (long tubes) but i ran into some valvetrain problems. The person that tuned the car said with long tubes alone i should easily see around 410-420hp. so i guess we will have to wait and see if hes right because im out of money.
I cant post my dyno sheet at this time (i dont know how) the tourqe curve was very nice making peak tq at 4600rpm and peak hp at 6000rpm. this package made excelent power (through stock exaust manifold) and pulls very strong from around 2500-6400.
This is my first cam ls1 car, i kinda wish i would have went with a bigger cam but the drivablilty and gas mileage is great. its a 6 speed car with a 4:11 gear gas mileage in the city is around 18-19 and on trips around 24-26.
I didnt plan on heads and cam before bolt-ons (long tubes) but i ran into some valvetrain problems. The person that tuned the car said with long tubes alone i should easily see around 410-420hp. so i guess we will have to wait and see if hes right because im out of money.
Awesome! 
You're saying you did that with an EGR LS1 intake? That's cool.
I have a '99 Z28 that same exact PP cam. I have long tubes, an LS6 mani, and a lid with no tune yet. I also have some stock '04 Z06 243's coming my way right now. Hopefully, I put down good numbers after the heads and tune. I'll let you know how I do in this thread and in PM. Wish i had the money for some aftermrket heads, but i got these for $500 and am broke, so the other $500 or so that it would have taken to buy some PP stage II's wasn't possible.
You're saying you did that with an EGR LS1 intake? That's cool.
I have a '99 Z28 that same exact PP cam. I have long tubes, an LS6 mani, and a lid with no tune yet. I also have some stock '04 Z06 243's coming my way right now. Hopefully, I put down good numbers after the heads and tune. I'll let you know how I do in this thread and in PM. Wish i had the money for some aftermrket heads, but i got these for $500 and am broke, so the other $500 or so that it would have taken to buy some PP stage II's wasn't possible.
thats awesome gas mileage wise, i was thinking of doing h/c with a custom cam slightly bigger than thatbut i went 12 bolt instead... awesome numbers btw, cant wait till my funds peak so i can deplete them
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Don't worry, the stock 243 heads are the BEST budget head you can buy. Get a good valvejob and they will perform within 90% of what the "budget" portings will do. The as cast ports are really good on those heads.