The one important factor that I see so many people ignore when chasing the big HP numbers is beefing up the rest of the drivetrain to support it. Reliable, big power costs. Applying said power to the pavement efficiently costs even more.
Ls motor question
- Thread starter mobileaudio25
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I hear ya man. I'm 34 now, but bought my Cutlass at 17 and it has been through a whirlwind of changes over the years.
In regards to either supercharging or going turbo, it's more of a preference thing IMO.
With a blower, there is no lag as the boost comes immediately when stomping the loud pedal. Where as with turbo's there can be boost lag if the turbo(s) are too big to spool off idle.
Another thing to consider is going with a blower you HAVE to pin the crank. There is no balancer keyway on the crank snout of LS engines. Failure to do so will cause the balancer to spin on the crank from the added tension/force the supercharger puts on it.
I had my body mounts replace about 500 miles ago with rubber mounts, I wish I would have went poly.
I have adjustable uppers and lower on the rear, big front sway bar, with Grand Prix bar and jounce bars. I have Grand National rear seat bracing with a rear sway bar and the rear frame horns tied. I also have fender to core support bars and firewall to core support bars. My car is very solid and handles great. I also have radiator cross bars, aftermarket transmission crossmember.
Do you think I will still need extra chassis reinforcement?
I think you'll be fine with that set up. Good body mounts are usually the most often overlooked. The GN bracing and shock tower bar also make a big difference.
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Yeah I know my turbo 350 won’t hold up to long. I have about $1500 in my rear end and I’m hoping that that holds up once I add new moser 28 spline axels. Fully adjustable suspension and I have a set of mickey Thompson drag radials on the rear. I plan on spending around 1500-2k on a transmission.
Yeah I know my turbo 350 won’t hold up to long. I have about $1500 in my rear end and I’m hoping that that holds up once I add new moser 28 spline axels. Fully adjustable suspension and I have a set of mickey Thompson drag radials on the rear. I plan on spending around 1500-2k on a transmission.
Yeah I custom fabbed up a grand national brace and am about to place my order for a rear shock tower brace from umi. You think my chassis should be able to support the power with all of those bolt ons? Frame is in good shape too
LSA supercharger and this:
https://www.summitracing.com/tx/parts/hpe-hp93/overview/
Should have no problems hitting your power goals and you start with a fresh engine. You could go stock computer or go with Megasquirt since you have a TH350. All accessories would be cheap to pick up on Craigslist. I'm a fan of the Canton baffled oil pan and Holley engine/trans mounts.
https://www.summitracing.com/tx/parts/hpe-hp93/overview/
Should have no problems hitting your power goals and you start with a fresh engine. You could go stock computer or go with Megasquirt since you have a TH350. All accessories would be cheap to pick up on Craigslist. I'm a fan of the Canton baffled oil pan and Holley engine/trans mounts.
If you are going forced induction go with the sturdier truck (cast iron) block.
I have:
A Procharged LS2 (6.0L);
A heads/cam/intake/nitrous LS1 (5.7L); and
A (soon to be) twin turbo 4.8L.
Only two of those combos will make 500+hp at the wheels all day everyday. The other one just sounds really cool and scoots okay - better when you push the button.
The thing is you can do as much with your 355 Gen I SBC as you can with the LS. If you spent the money on a good valvetrain, heads, and intake you could have a very stout engine (as stout as an equal max effort LS 5.7L) without needing a bunch of swap parts. This approach has its advantages.
That said, I sold off my old SBC stuff for a reason. The LS-family of engines is just that good.
A Procharged LS2 (6.0L);
A heads/cam/intake/nitrous LS1 (5.7L); and
A (soon to be) twin turbo 4.8L.
Only two of those combos will make 500+hp at the wheels all day everyday. The other one just sounds really cool and scoots okay - better when you push the button.
The thing is you can do as much with your 355 Gen I SBC as you can with the LS. If you spent the money on a good valvetrain, heads, and intake you could have a very stout engine (as stout as an equal max effort LS 5.7L) without needing a bunch of swap parts. This approach has its advantages.
That said, I sold off my old SBC stuff for a reason. The LS-family of engines is just that good.
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