Trying to make some massive power
#1
Trying to make some massive power
Hi guys I have an opinion based question for all of ya. As noted in my sig., I have a blown LT1 with forged internals. The LT1 is still a 350 and is running 9lbs of boost right now, with a custom blower cam. My goal is to sometime relatively soon reach a peak output of 500-600rwhp. Right now, I have close to 450hp at the crank. My question is, whats the best (cheapest & reliable if possible) way to get nother 100rwhp or so...not wanting to do nitrous. Should I do an LE2 head job..also swap cam out or what? Or should I drop the blower and just go with a h/c combo. Or should I just do a stroker kit and keep the blower? If I do a stroker it would be a 383. And one last question, can I Just change the crank and do a .030 overbore, instead of buying a whole kit when I already have forged parts?
Other mods: Pretty much full boltons, wanting to still do 1.6 rr next year.
Any suggestions and reasoning why would be appreciated. I have to know how much money to save up too. Thanks.
-Adam
Other mods: Pretty much full boltons, wanting to still do 1.6 rr next year.
Any suggestions and reasoning why would be appreciated. I have to know how much money to save up too. Thanks.
-Adam
#2
>if money is no object then go with a better (bigger head unit) and as always more flow = more horse power so do a better s/c cam and heads.
I really like having N2O with my T-trim, but hey thats me.
I really like having N2O with my T-trim, but hey thats me.
#3
stock internals? replace them and add more boost. low compression pistons and all forged internals would go a really long way...and be reliable. without knowing everything in your motor i cant really suggest anything.
we need to know if it's tuned, what injectors your running, intake, exhaust, throttle body, heads, rotating assembly, rockers/lifters, fuel pressure, ECM tune...and any other info you can give.
for now, a 355 blower setup will net you somewhere in the 600 range
we need to know if it's tuned, what injectors your running, intake, exhaust, throttle body, heads, rotating assembly, rockers/lifters, fuel pressure, ECM tune...and any other info you can give.
for now, a 355 blower setup will net you somewhere in the 600 range
#4
All of the internals are forged, I have a 52mm throttle body, I believe 42lb injectors, stock heads and an fireall ignition box. I have a 4'' K&N conical filter, a borla catack, stock 1.5rr's and long tubes w/off road y-pipe....like I said almost full boltons. Everything is all setup to take a beating on the inside. I have a pully for 12lbs of boost waiting to be installed. I also had it dynotuned. I just like the lowend grunt of a 383. So I should keep the cubes 350 and do a head job keeping the blower?
Last edited by BMWKillR; 10-28-2006 at 01:15 PM.
#6
Find out the compression ratio. That is the limiting factor on how much boost you can safely run. I'd get a set of Trickflows due to increased chamber(to lower comp.) and have them ported out by a respected head porter. 500 Hp is more than possible with a 355 and boost. Good luck.
#8
If you have low enough CR, simply up the boost.
If you can't because of the CR, or don't want to up the boost, changing from the stock heads to a set of fully ported aftermarket ones on your blower car will EASILY gain you another 100 hp.
If you can't because of the CR, or don't want to up the boost, changing from the stock heads to a set of fully ported aftermarket ones on your blower car will EASILY gain you another 100 hp.
#10
-Adam
#11
Your traction vs. power is going to depend on your suspension.
I have Nitto DR's in the back, along with 590 RWHP on 3.73's. My suspension is set up perfect, and my cam doesn't really make the crazy power until the boost kicks in, and by that time I am already rolling. I still spin a bit, but if I heat the tires up well, and granny shift (meaning not taking it up to 7,000 RPM) then the spinning is almost non existant even with my near 600 RWHP.
Your CR is extremly low IMO (I am not sure why you wanted that low actually), so if everything is forged, you should be able to handle a SHLOAD of boost! I wouldn't stop at 12 #'s if you are looking for an easy 100 RWHP, I would find a pully to max out the boost. (BTW, what supercharger do you have?) You can finese power by fine tuning your suspension. I feel as though I am almost maxed out on finesing mine though. IMO 600-675 RWHP is about the most you will be able to control without loosing a vast amount of traction (at least for a street car) and thats maxing out on suspension goodies.
It all really depends on;
1. how much you want to spend
2. what kind of setup you want your car to have for the given RWHP (this will primarily depend on what you are looking to do. Is it a street car? Are you like me in the sense of just wanting max power for traction? Are you just looking to break a RWHP # for a dyno sheet?, ect.)
I have Nitto DR's in the back, along with 590 RWHP on 3.73's. My suspension is set up perfect, and my cam doesn't really make the crazy power until the boost kicks in, and by that time I am already rolling. I still spin a bit, but if I heat the tires up well, and granny shift (meaning not taking it up to 7,000 RPM) then the spinning is almost non existant even with my near 600 RWHP.
Your CR is extremly low IMO (I am not sure why you wanted that low actually), so if everything is forged, you should be able to handle a SHLOAD of boost! I wouldn't stop at 12 #'s if you are looking for an easy 100 RWHP, I would find a pully to max out the boost. (BTW, what supercharger do you have?) You can finese power by fine tuning your suspension. I feel as though I am almost maxed out on finesing mine though. IMO 600-675 RWHP is about the most you will be able to control without loosing a vast amount of traction (at least for a street car) and thats maxing out on suspension goodies.
It all really depends on;
1. how much you want to spend
2. what kind of setup you want your car to have for the given RWHP (this will primarily depend on what you are looking to do. Is it a street car? Are you like me in the sense of just wanting max power for traction? Are you just looking to break a RWHP # for a dyno sheet?, ect.)
#12
Your traction vs. power is going to depend on your suspension.
I have Nitto DR's in the back, along with 590 RWHP on 3.73's. My suspension is set up perfect, and my cam doesn't really make the crazy power until the boost kicks in, and by that time I am already rolling. I still spin a bit, but if I heat the tires up well, and granny shift (meaning not taking it up to 7,000 RPM) then the spinning is almost non existant even with my near 600 RWHP.
Your CR is extremly low IMO (I am not sure why you wanted that low actually), so if everything is forged, you should be able to handle a SHLOAD of boost! I wouldn't stop at 12 #'s if you are looking for an easy 100 RWHP, I would find a pully to max out the boost. (BTW, what supercharger do you have?) You can finese power by fine tuning your suspension. I feel as though I am almost maxed out on finesing mine though. IMO 600-675 RWHP is about the most you will be able to control without loosing a vast amount of traction (at least for a street car) and thats maxing out on suspension goodies.
It all really depends on;
1. how much you want to spend
2. what kind of setup you want your car to have for the given RWHP (this will primarily depend on what you are looking to do. Is it a street car? Are you like me in the sense of just wanting max power for traction? Are you just looking to break a RWHP # for a dyno sheet?, ect.)
I have Nitto DR's in the back, along with 590 RWHP on 3.73's. My suspension is set up perfect, and my cam doesn't really make the crazy power until the boost kicks in, and by that time I am already rolling. I still spin a bit, but if I heat the tires up well, and granny shift (meaning not taking it up to 7,000 RPM) then the spinning is almost non existant even with my near 600 RWHP.
Your CR is extremly low IMO (I am not sure why you wanted that low actually), so if everything is forged, you should be able to handle a SHLOAD of boost! I wouldn't stop at 12 #'s if you are looking for an easy 100 RWHP, I would find a pully to max out the boost. (BTW, what supercharger do you have?) You can finese power by fine tuning your suspension. I feel as though I am almost maxed out on finesing mine though. IMO 600-675 RWHP is about the most you will be able to control without loosing a vast amount of traction (at least for a street car) and thats maxing out on suspension goodies.
It all really depends on;
1. how much you want to spend
2. what kind of setup you want your car to have for the given RWHP (this will primarily depend on what you are looking to do. Is it a street car? Are you like me in the sense of just wanting max power for traction? Are you just looking to break a RWHP # for a dyno sheet?, ect.)
I have a vortec V-trim i believe (was on the car when i bought it) and the compression was already set that low w/ a dynotune. Boost is fun, but lacks the lowend grunt that a stroker or even a H/C combo might give. Idk how much boost the blower can put out reliably and consistenly.
#13
I have a vortec V-trim i believe (was on the car when i bought it) and the compression was already set that low w/ a dynotune. Boost is fun, but lacks the lowend grunt that a stroker or even a H/C combo might give. Idk how much boost the blower can put out reliably and consistenly.
#14
I have a vortec V-trim i believe (was on the car when i bought it) and the compression was already set that low w/ a dynotune. Boost is fun, but lacks the lowend grunt that a stroker or even a H/C combo might give. Idk how much boost the blower can put out reliably and consistenly.
#15
The CR is good! Low static CR + boost is the way to make big hp on crappy pump gas. I agree with the poster who said water injection + more boost. Water/alcohol injection is also very helpful making hp on the swill coming out of the gas pumps these days. Max out your blower at the desired rpm and see what kind of power it makes. What kind of duration on the cam and what blower?
Rich
Rich