Procharger on stock internals?
The way that i understand it, i'm no expert, so if i say this wrong please correct me...
Number 7 has an issue because of the way our manifolds are designed (not designed for boost). The incoming boosted air dose not get dispersed well. Most of the air rushes into the manifold, and hits the back of the manifold, and gets directed to the #7 cylinder. So that cylinder runs leaner than others, and hence the reason its the first to go on a stock motor.
This is also why the tune is important, you need to make sure there is enough fuel going to it, while keeping in mind that the #7 will (because of the design) run leaner
My tuning is this friday, I'm on the stock bottom, I should be over 500HP to the wheels. Depending what it puts down, ill be putting a meth kit on it for added safety.
Thanks...
--Mike
Number 7 has an issue because of the way our manifolds are designed (not designed for boost). The incoming boosted air dose not get dispersed well. Most of the air rushes into the manifold, and hits the back of the manifold, and gets directed to the #7 cylinder. So that cylinder runs leaner than others, and hence the reason its the first to go on a stock motor.
This is also why the tune is important, you need to make sure there is enough fuel going to it, while keeping in mind that the #7 will (because of the design) run leaner
My tuning is this friday, I'm on the stock bottom, I should be over 500HP to the wheels. Depending what it puts down, ill be putting a meth kit on it for added safety.
Thanks...
--Mike
Now, what about this scenario -- You say it's because of the way the intake manifold is designed? What if you throw a FAST 90mm on there?
Well, that definitely makes sense to me.. So the safest thing to do when nearing that 500 mark, would be to run it a little rich, so #7 doesn't lean out?
Now, what about this scenario -- You say it's because of the way the intake manifold is designed? What if you throw a FAST 90mm on there?
Now, what about this scenario -- You say it's because of the way the intake manifold is designed? What if you throw a FAST 90mm on there?
Again I by no means an expert, and i think you will find that this is a highly debatable subject, and i don't have ANY experience with the FAST stuff. But about the best advice i can give, and what I personally am doing, is just saving for a forged bottom end. Especially if your looking for 500+.
And the added fact that boost is like a drug, you will eventually want more!!!
I know i was that way when i had my turbo buick, and i will be like that with this car! Hope this helps...
Thanks...
--Mike
TECH Enthusiast
Joined: Jul 2006
Posts: 747
Likes: 0
From: sofla
Heres a 7 psi P1SC setup on a stock bottom end with AFR 205s and a TraK cam, pretty stout numbers, and the bottom end is still alive to tell about it...in fact, its getting twins next week....
(This is a comparison of the Head/cam N/A set up to the same with 7psi...made 580 here, but we had belt issues, a new bracket was installed, along with 60# injectors up from the 42s used here, and it made 613rwhp at the same boost setting)
Note the fat A/F, we left it even fatter with the 60's...
(This is a comparison of the Head/cam N/A set up to the same with 7psi...made 580 here, but we had belt issues, a new bracket was installed, along with 60# injectors up from the 42s used here, and it made 613rwhp at the same boost setting)
Note the fat A/F, we left it even fatter with the 60's...
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
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
11 Second Club
Joined: Oct 2007
Posts: 429
Likes: 1
From: Columbus, OH
I am running a stock bottom end, stock heads, and stock(but ported) intake. 7.9 pounds of boost. On a Mustang Dyno- it pulled 543rwhp. Car was done at 22k miles, has 30,600 now- and works great.. I have seen cars with 10 pounds of boost on a stock bottom end, but thats really the limit..
When my motor was in my car, they had it set at 12 pounds of boost, and did one dyno pull on a mustang, and it pulled 685rwhp.. lol- The motor would have not been worthy of lasting set at 12 pounds of boost.. went conservative- 7.9 pounds..
When my motor was in my car, they had it set at 12 pounds of boost, and did one dyno pull on a mustang, and it pulled 685rwhp.. lol- The motor would have not been worthy of lasting set at 12 pounds of boost.. went conservative- 7.9 pounds..
I am running a stock bottom end, stock heads, and stock(but ported) intake. 7.9 pounds of boost. On a Mustang Dyno- it pulled 543rwhp. Car was done at 22k miles, has 30,600 now- and works great.. I have seen cars with 10 pounds of boost on a stock bottom end, but thats really the limit..
When my motor was in my car, they had it set at 12 pounds of boost, and did one dyno pull on a mustang, and it pulled 685rwhp.. lol- The motor would have not been worthy of lasting set at 12 pounds of boost.. went conservative- 7.9 pounds..
When my motor was in my car, they had it set at 12 pounds of boost, and did one dyno pull on a mustang, and it pulled 685rwhp.. lol- The motor would have not been worthy of lasting set at 12 pounds of boost.. went conservative- 7.9 pounds..
11 Second Club
Joined: Oct 2007
Posts: 429
Likes: 1
From: Columbus, OH
Make sure- of a good fuel source!!
I have had a couple issues with my torque arm (4 bolts that attach to the rearend.. (12 bolt moser) They were coming loose- so i fixed with some lock washers, and some red lock tite..
No problems so far. If you have a stock bottom end, you will have no problems with 8 pounds.
Make sure- of a good fuel source!!
I have had a couple issues with my torque arm (4 bolts that attach to the rearend.. (12 bolt moser) They were coming loose- so i fixed with some lock washers, and some red lock tite..
Make sure- of a good fuel source!!
I have had a couple issues with my torque arm (4 bolts that attach to the rearend.. (12 bolt moser) They were coming loose- so i fixed with some lock washers, and some red lock tite..
After that it's in your best interest to just break down and upgrade pistons/connecting rods..
A condition exhibited by a worn-out internal combustion engine when the piston rings no longer efficiently seal the combustion chamber, allowing compressed air and fuel to escape the cylinder and thus power is lost and emissions are increased. The engine also usually burns oil. Mine was very bad. I had a breather on my valve cover and it was smoking alot. You dont want blowby. It pretty much means your motor is done. Atleast mine was.
just dynoed 566rwhp/505rwtq on the dynojet at Dez Racing (thanks Slowhawk).
thats with a stock 98 bottom end and some sorta blower cam at 8-9psi.... Don said it had more left in it but I wimped out.... would like it to last till winter.
thats with a stock 98 bottom end and some sorta blower cam at 8-9psi.... Don said it had more left in it but I wimped out.... would like it to last till winter.
A condition exhibited by a worn-out internal combustion engine when the piston rings no longer efficiently seal the combustion chamber, allowing compressed air and fuel to escape the cylinder and thus power is lost and emissions are increased. The engine also usually burns oil. Mine was very bad. I had a breather on my valve cover and it was smoking alot. You dont want blowby. It pretty much means your motor is done. Atleast mine was.
And what blower cam
? ran all last year (3000+ miles) at 500rwhp, just got it dynoed a few weeks ago. been to the track once since the tune up and I beat it like a rented mule. Its all about the tune, I think that I would trust a mail order tune from Don
(slowhawk) before I would let anyone else touch my computer
(slowhawk) before I would let anyone else touch my computer