More boost?
Thread Starter
TECH Regular
Joined: Nov 2010
Posts: 443
Likes: 0
From: Your GF's pants
More boost? Ok guys, so I've got a plan for a 415 CID LS3 Block in the makes with a 10:5:1 compression ratio. There will be a TVS 1900 going on top of it with a 2.8" pulley. But this setup only makes roughly 10LBS with L92 Heads. I want to make more boost so I can achieve more than 700 HP. What should I do to increase it, because I'm stuck going with a S/C. Is it in heads? Or cam?
Thanks,
Robbie.
Thanks,
Robbie.
Ok guys, so I've got a plan for a 415 CID LS3 Block in the makes with a 10:5:1 compression ratio. There will be a TVS 1900 going on top of it with a 2.8" pulley. But this setup only makes roughly 10LBS with L92 Heads. I want to make more boost so I can achieve more than 700 HP. What should I do to increase it, because I'm stuck going with a S/C. Is it in heads? Or cam?
Thanks,
Robbie.
Thanks,
Robbie.
How much boost the blower can produce depends on many variables.
* Cubic inch. The larger the engine the less boost it will make with a supercharger.
* Headers and exhaust. A better flowing system will produce less boost, requires a smaller pulley to regain the loss in boost. Ultimately though, more power will be gained.
* Camshaft and heads. A camshaft with some overlap will leak out some boost through the valves. Better flowing heads react a lot like a better flowing exhaust system.
* Altitude. Elevation plays a big part in how much boost is produced. Those people living in the higher elevations have to spin the blower harder to see boost.
* Condition of engine. An engine with real good sealing rings will ultimately produce more boost than one with worn rings.
* Rpm. An engine that is spun up higher in the rpm range will normally produce more boost.
Bob
__________________
ATI ProCharger and Moser Sales 260 672-2076
PM's disabled, please e-mail me
E-mail: brutespeed@gmail.comob@brutespeed.com
https://brutespeed.com/ Link to website
ATI ProCharger and Moser Sales 260 672-2076
PM's disabled, please e-mail me
E-mail: brutespeed@gmail.comob@brutespeed.com
https://brutespeed.com/ Link to website
Thread Starter
TECH Regular
Joined: Nov 2010
Posts: 443
Likes: 0
From: Your GF's pants
I'm building a custom engine. And I already have an MP1900 sitting here that came off a 6.0L. The cam for this engine, (Not the one in my sig) is a ZR1 cam but that can be changed if it meets the needs of being streetable and has a wide power range, like from 1900 to 6500. The heads I have are CNC/Ported L92's. On the shortblock build, I'm studding the heads and running LS9 Gaskets. I watched a video of Granatelli's 402 smallblock with the same compression, an MP122HH @13Lbs, and trickflow heads build 725HP, and 759TQ. I figure if I can achieve the same specs with more cubes I should make ~750HP or more. What do you guys think?
I think you'd be better off building a cheaper shortblock and spend the saved money on upgrading from the 1900 to the 2300. Maybe they have a trade in plan?
I think you can make 750hp at the motor with a 400+ cube motor and the 1900, but I doubt it'll do that to the wheels. Either way you'll be maxed out. I'm betting a cheaper 370 with the 2300 and better heads would make more power. Is money an issue? Do you already have the LS3 block?
I'd just hate to see you starving a nasty 400+ cube motor with the smaller 1900 blower.
I think you can make 750hp at the motor with a 400+ cube motor and the 1900, but I doubt it'll do that to the wheels. Either way you'll be maxed out. I'm betting a cheaper 370 with the 2300 and better heads would make more power. Is money an issue? Do you already have the LS3 block?
I'd just hate to see you starving a nasty 400+ cube motor with the smaller 1900 blower.
Thread Starter
TECH Regular
Joined: Nov 2010
Posts: 443
Likes: 0
From: Your GF's pants
I wish they had a trade in or else that would be numero uno on my list lol. Isn't the 122 smaller than the 1900 anyways? Yes money is an issue because I don't have there isn't enough to get a 2300 maybe later after I get this built and straightened out I'll do it but my 415 shortblock is already on order and being built. Right now I'm just trying to make the most of what I've got, but I might be able to afford a cam with this job and maybe more work on these heads. But a 2300 for a truck... I don't have that much to spare at the moment. I'm doing all the tuning myself and I dint want to push over 800 at the flywheel because I think that that is all the aluminum blocks can handle.
Trending Topics
Thread Starter
TECH Regular
Joined: Nov 2010
Posts: 443
Likes: 0
From: Your GF's pants
I'd like for some cam specs to look at with no more then .610 lift though. Also any tricks on the heads? Or better yet can I make this Maggie perform better? I can go down to a 2.7 wheel but I might risk belt slip. Or is there an overdrive pulley that someone manufactures? Any ideas like that?
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 Thread Starter
TECH Regular
Joined: Nov 2010
Posts: 443
Likes: 0
From: Your GF's pants
I also forgot to mention that this truck has custom 1 3/4 inch one off headerrs, stock cats, and true dual 3 inch pipes into a magnaflow exhaust, exiting out with two 2 1/2 inch over axle tips. The reason I chose 10:5:1 compression was to accommodate upwards of 7 psi of boost to make power. I went heavy duty on the head gaskets and decided to do studs so later on I could put more boost to this engine. Thanks Bob for all info you posted.
Last edited by IDRIVEAG8GT; Dec 20, 2010 at 11:17 AM.
Thread Starter
TECH Regular
Joined: Nov 2010
Posts: 443
Likes: 0
From: Your GF's pants
Sorry for all the extra posts. I'm doing it off my Blackberry and I keep leaving things out, but there's no way to go back and re-edit the previous post. Anywho I really know you guys want me to go with a bigger Supercharger but I just don't have that much dough right now. I'm stuck with what's coming and its exactly what I want for an engine. Regardless its going to make big horsepower though.... Right? and as soon as this truck gets out of the shop and makes me a little money I WILL end up going with a bigger charger.
HP Turbo is in your hometown, just don't pay them 100% upfront for a turbo system. Bob
__________________
ATI ProCharger and Moser Sales 260 672-2076
PM's disabled, please e-mail me
E-mail: brutespeed@gmail.comob@brutespeed.com
https://brutespeed.com/ Link to website
ATI ProCharger and Moser Sales 260 672-2076
PM's disabled, please e-mail me
E-mail: brutespeed@gmail.comob@brutespeed.com
https://brutespeed.com/ Link to website
