[Enslaved]

Hi all,

I recently acquired a 2019 SS 1LE. Its essentially stock in current form.

I have been looking all over for a sticky thread or other good resource that has comparisons of bolt on boost options. I haven't been able to find anything super comprehensive. If that does exist somewhere, can somebody point me that way? Apologies in advance.

Otherwise, I am looking to boost this thing whilst keeping stock internals for now. Understanding that 5-6psi seems to be the accepted "safe" range. I was a 'Supra guy' and tuner for nearly 20 years within the JDM world, so I have a sound understanding of engines, tuning, etc. That said, I am not up to speed with the chevy world norms.

Any help here is much appreciated.

[KingLT1]

5-6psi if limited to pump gas and stock fuel system. Upgraded fuel system 7-8psi with at least 93 octane and a little VP octanium wouldn't hurt. If you can run Ethanol that would be best and you could push 10-11psi with proper fueling and crank case ventilation. You could probably Google my screen name and find plenty of posts discussing this over the years.

[Enslaved]

Originally Posted by KingLT1

5-6psi if limited to pump gas and stock fuel system. Upgraded fuel system 7-8psi with at least 93 octane and a little VP octanium wouldn't hurt. If you can run Ethanol that would be best and you could push 10-11psi with proper fueling and crank case ventilation. You could probably Google my screen name and find plenty of posts discussing this over the years.

Fair enough. Had it in my head the 5-6psi was the 'reasonable' zone for the internals. Didn't realize there was more headroom with a fueling increase. nice.

I'd love to use E. Used it on all my cars in Michigan. Unfortunately, in the peoples republic of New York - virtually no E85.

I will absolutely check out your posts. Thanks for the tips.

[Enslaved]

There seems to be an interesting paradox between doing an NA build and a boosted build. Trying to figure out whats the most bang for the buck without breaking things.

Thinking about getting the gen 5 whipple (3L) kit. All things I'm finding point to this being a bolt on with only a tune required. Is this generally accurate?

Then I start thinking about changing the cam, springs, removing DOD (lifters) and whatnot which gets me going down the NA rabbit hole.

Any advice on the best place to waste 10-15k is?

[Joshinator99]

Originally Posted by Enslaved

There seems to be an interesting paradox between doing an NA build and a boosted build. Trying to figure out whats the most bang for the buck without breaking things.

Thinking about getting the gen 5 whipple (3L) kit. All things I'm finding point to this being a bolt on with only a tune required. Is this generally accurate?

Then I start thinking about changing the cam, springs, removing DOD (lifters) and whatnot which gets me going down the NA rabbit hole.

Any advice on the best place to waste 10-15k is?

If you do a blower I would definitely try to get some E in the mix like King suggested. The high compression, non-forged, pistons need all the octane they can get. Doing the fuel system is a place to blow a bunch of money lol. I’ve got more than $15K into my fuel system alone… So pick a power goal and make sure you don’t skimp on fueling. The stock LT1 fueling is pretty useless on a forced induction build.

[Enslaved]

Looking like I will be pulling the trigger on the Edelbrock 2650 varient. Seems to be the most polished package from what I can tell. I'm sure each variation has it's own drawbacks compared to the others.

Looking at the fuel system side of things - it would appear i may have the higher volume low side pump (just basing this off forum posts; 2019 ss 1le). So... lt4 HPFP and injectors should be enough to reliably get this edelbrock setup going? Any other fueling options that dont invovle spending $1500 on a lousy OE mechanical pump? cheaper/better to go with port injection instead? or in conjunction with?

SO much to learn here. Pardon my ignorance. Thanks again for the feedback gents.

[Joshinator99]

Originally Posted by Enslaved

Looking like I will be pulling the trigger on the Edelbrock 2650 varient. Seems to be the most polished package from what I can tell. I'm sure each variation has it's own drawbacks compared to the others.

Looking at the fuel system side of things - it would appear i may have the higher volume low side pump (just basing this off forum posts; 2019 ss 1le). So... lt4 HPFP and injectors should be enough to reliably get this edelbrock setup going? Any other fueling options that dont invovle spending $1500 on a lousy OE mechanical pump? cheaper/better to go with port injection instead? or in conjunction with?

SO much to learn here. Pardon my ignorance. Thanks again for the feedback gents.

The answer is easy. It depends. How's that? LMAO

Ok, it actually is straightforward. Need to know how much power you want to make. And do you have access to E85. And do you plan on building the shortblock at some point. Those are probably the three biggest questions that need answering. Then we can give you some great options.

[RobZL1]

I know a guy who will be selling a set of used (~25k miles) LT4 injectors and HPFP in a few weeks...

[Enslaved]

Originally Posted by Joshinator99

The answer is easy. It depends. How's that? LMAO

Ok, it actually is straightforward. Need to know how much power you want to make. And do you have access to E85. And do you plan on building the shortblock at some point. Those are probably the three biggest questions that need answering. Then we can give you some great options.

Appreciate the response.

E85 is unobtainium in my area (recently relocated to upstate NY from Michigan). Really quite sad - especially being a 'Green' state. So the answer here is a hard NO - as much as I would love to run nothing but E85 and did in all my cars in michigan.

For the time being, 550-600rwhp is a good spot to end up for a year or two? seems reasonable from what I've been reading.

I will absolutely be building the block at some point. Being a Supra guy who never had to touch a bottom end until 700+hp, this one stings a bit. But yes, I will be doing rods/pistons/cam, etc in the next year or two.

For now, lets just assume that edelbrock blower is showing up and the car is a stock 19 SS 1LE for now.

[Joshinator99]

Originally Posted by Enslaved

Appreciate the response.

E85 is unobtainium in my area (recently relocated to upstate NY from Michigan). Really quite sad - especially being a 'Green' state. So the answer here is a hard NO - as much as I would love to run nothing but E85 and did in all my cars in michigan.

For the time being, 550-600rwhp is a good spot to end up for a year or two? seems reasonable from what I've been reading.

I will absolutely be building the block at some point. Being a Supra guy who never had to touch a bottom end until 700+hp, this one stings a bit. But yes, I will be doing rods/pistons/cam, etc in the next year or two.

For now, lets just assume that edelbrock blower is showing up and the car is a stock 19 SS 1LE for now.

So, take @RobZL1 up on his offer for LT4 HPFP and Injectors. Add a JMS voltage booster to the 1LE in-tank low pressure pump. Swap out the plugs for some Brisk colder plugs from Griffin Motorsports. That’ll let you run 550-570 WHP on 93 octane with good results, since the Eddie 2650 cooling is better than a stock LT4 blower.

Once you build the bottom end, you’ll need to drop the compression to keep running 93 octane and yet make more power by spinning the blower harder. I was able to make around 825-850 WHP on 93 octane with compression closer to 10:1. I’d usually run a little Boostane to help keep things safer since 93 sucks lol. I eventually got a big fuel system and made so much more power on E.

Hope that helps.

[Enslaved]

Follow-up question...looking down the road, is it worth the effort/cost to also swap the Cam when adding the blower? (Let's assume the fuel situation is addressed for sake of argument).

Yes I know the heads and pan will be off at this point and it would be the perfect time to drop in pistons......... however, I want to get next season out of the stock bottom end ideally then crack the bottom open the next winter.

[Joshinator99]

Originally Posted by Enslaved

Follow-up question...looking down the road, is it worth the effort/cost to also swap the Cam when adding the blower? (Let's assume the fuel situation is addressed for sake of argument).

Yes I know the heads and pan will be off at this point and it would be the perfect time to drop in pistons......... however, I want to get next season out of the stock bottom end ideally then crack the bottom open the next winter.

No, I’d just do the cam when doing the bottom end. Just my 2 cents.

[Enslaved]

Originally Posted by Joshinator99

No, I’d just do the cam when doing the bottom end. Just my 2 cents.

lol fair enough.

Meth injection seems to be a pretty popular thing on these cars... thoughts on adding that into the mix with the blower?

Is there a prefered kit/brand in this community?

[KingLT1]

You have to tear the engine down to the shortblock to install a cam so you might as well do pistons at the same time and save a chunk in labor.

Far as meth injection, it's better than only running pump gas, not as good as blending E. You get much better distribution spraying high octane fuel like E through 8 injectors vs spraying a single nozzle of methanol in front of the throttle body. As long as you are not using it as supplemental fuel and more for octane and cooling it should be fine. I would run methanol injection a little richer to account for the leaner cylinders.