[cjperformance]

Originally Posted by White1SS

If you run full E, at 7psi, is a LT4 fuel system upgrade still necessary ?

Yes, or port inj. Ethanol takes 30% more volume of fuel to hit stoich air/fuel ratio. So basically ethanol will require even more fueling capacity than gasoline.

Honestly id just go port inj out of the gate. I was running into limits on the LT4 stuff quickly on ethanol.

[White1SS]

Would 10k get this done :


Stage ll ProCharger.
LT4 fuel upgrade
Flex fuel system
Dyno tune.


~ 600 whp ?

[Joshinator99]

Originally Posted by FH212

That's very true. I am one of them. No 93 in my State and E85 is hard to get also. I am screwed. After the reading in this thread and others, I am going to either just do full bolt on's or just sell my SS and try to find a super low mileage ZL1 this winter. Heck with it.

Lower compression drop-in forged pistons and rods are $1800 from GPI. They are stronger than OEM LT4 components and I can personally vouch that they can take an absolute pounding. No need to sell your car my man.

[Joshinator99]

Originally Posted by White1SS

Would 10k get this done :


Stage ll ProCharger.
LT4 fuel upgrade
Flex fuel system
Dyno tune.


~ 600 whp ?

If you’re able to do the work yourself, definitely. That’s not a hard install IMO.

[FH212]

Originally Posted by Joshinator99

Lower compression drop-in forged pistons and rods are $1800 from GPI. They are stronger than OEM LT4 components and I can personally vouch that they can take an absolute pounding. No need to sell your car my man.

Maybe a N/A build would be better for me? I would do that for sure if its safer.

[KingLT1]

Originally Posted by White1SS

Would 10k get this done :


Stage ll ProCharger.
LT4 fuel upgrade
Flex fuel system
Dyno tune.


~ 600 whp ?

You could also find a used low mileage ported stock LT4 blower(<3000), LT4 fuel system, jms booster, keep boost around 7psi. Shouldn't have a problem getting all this for under 10k. . The car will have a much fatter power curve with the LT4 blower. That should put you in the 580-600whp range. As long as you have no plans for more power, the fuel system will be adequate. If you do 38% lobe cam, then you can get close to another 100whp out of the fuel system. But you might as well do rods/pistons if going that far. Many shops pull the engine for a cam install anyway.

[White1SS]

Is race fuel an option in lieu of E ? I have no issue with the idea of using E, and feel I understand its benefits, it's just an availability issue that I feel would turn into a real hassle.



What octane would be safe to run with 7psi on a hot Summer day ? I always put 94 in my stock SS, but there are numerous shops around where I could purchase various levels of race fuel. Would mixing 94 with race fuel to net say, 100 octane , provide enough knock/detonation protection and still allow for max timing for optimum power ?

[cjperformance]

Originally Posted by White1SS

Is race fuel an option in lieu of E ? I have no issue with the idea of using E, and feel I understand its benefits, it's just an availability issue that I feel would turn into a real hassle.



What octane would be safe to run with 7psi on a hot Summer day ? I always put 94 in my stock SS, but there are numerous shops around where I could purchase various levels of race fuel. Would mixing 94 with race fuel to net say, 100 octane , provide enough knock/detonation protection and still allow for max timing for optimum power ?

Not getting into race fuel or specific octane numbers to do specific things, but pure ethanol is 109 octane for reference. E85 can actually vary between about 60% to 85% ethanol, the rest being gasoline. So effectively E85 has an octane of 100-105 depending on the blend.

Ethanol has other beneficial cooling characteristics compared to gasoline so it isnt just about the octane. Its also more forgiving of over-rich conditions too (or so ive heard).

[KingLT1]

The main benefit of Ethanol is it's ability to pull heat out of the cylinder on combustion. This is why Ethanol loves compression and why it doesn't gain nearly as much power on the older LS stuff.

When you are putting boost to a engine that has some of the tightest ring gaps to ever roll out of GM's assembly plants, you want to keep cylinder temps in check so the rings don't butt and break a piston.

The next issue is the variance in ring gaps on the LT1. I have seen some reports of some engines being as tight as .07. If yours happens to be this tight then you might be SOL. I have also seen reports of compression being as high as 12:1 and not the advertised 11.5:1. Most LT1's are around 10-12 thou on ring gap. For reference the LS3 was 15 to 19...so much more boost friendly.

The tuning window is very narrow on the LT1.

Another important issue often over looked is blow by and crank case pressure. Get a vented catch can!! Oil blow by will cause detonation and break pistons.

You will also want the LS3 timing cover seal.

[JANNETTYRACING]

Originally Posted by Jmcmanus626

Question for all the engine modders out there. I finally got a 2017 2SS, and I'm looking to eventually supercharge and get more RWHP from my car. I know about swapping internals for forged and all that but my question really lies in fuel and the likes for such. I'm aiming to get around 850hp and was curious if 91 octane is still feasible for such a build and HP or if at that point switching to an e85 flex fuel kit would be the better route. Can the LT1 still run that high of HP on 91 or no? Apologies if this is posted on the wrong section. Any advice or help on this topic would be appreciated!

If you are looking to do this in stages then I would start with foundation parts.

Long tube headers high flow catted 3 inch X pipe back to stock muffler.

Flex fuel sensor, and LT4 fuel system

Then you can think about supercharging, and there are many options.

We prefer the top mount supercharger for there simplicity, fit, finish and performance.

You can safely run up to 6psi on 91 8 psi on 93, , 10 on E-85 with no internal engine modifications and proper tuning.

Roughly 550 RWHP, 600 RWHP 650 RWHP respectively.

A cam upgrade can add up to 100 RWHP to these numbers.

The over the counter tuning that comes with the supercharger won't be usable at all.

We sell complete packages with everything needed including custom tuning equipment and calibration.

Feel free to call we are always available to take a call to talk through your budget and goals.

Ted.

[Jmcmanus626]

Originally Posted by JANNETTYRACING

If you are looking to do this in stages then I would start with foundation parts.

Long tube headers high flow catted 3 inch X pipe back to stock muffler.

Flex fuel sensor, and LT4 fuel system

Then you can think about supercharging, and there are many options.

We prefer the top mount supercharger for there simplicity, fit, finish and performance.

You can safely run up to 6psi on 91 8 psi on 93, , 10 on E-85 with no internal engine modifications and proper tuning.

Roughly 550 RWHP, 600 RWHP 650 RWHP respectively.

A cam upgrade can add up to 100 RWHP to these numbers.

The over the counter tuning that comes with the supercharger won't be usable at all.

We sell complete packages with everything needed including custom tuning equipment and calibration.

Feel free to call we are always available to take a call to talk through your budget and goals.

Ted.

You have no idea how stoked I am right now seeing you guys give me your input! You seem to read minds cause the headers, exhaust, flex fuel and lt4 fuel system were the first things I began looking at and planned on knocking out.

I was then going to look at an Edelbrock complete supercharger kit for my engine, top mounted so again you seemed to have read my mind lol.

I was also looking at forged internals and a cam so I'm glad to know I was on the right track! But I will keep this saved for reference and might take you guys up on that call and advice as I progress! Much appreciated for all the advice and direction!

[JANNETTYRACING]

Originally Posted by Jmcmanus626

You have no idea how stoked I am right now seeing you guys give me your input! You seem to read minds cause the headers, exhaust, flex fuel and lt4 fuel system were the first things I began looking at and planned on knocking out.

I was then going to look at an Edelbrock complete supercharger kit for my engine, top mounted so again you seemed to have read my mind lol.

I was also looking at forged internals and a cam so I'm glad to know I was on the right track! But I will keep this saved for reference and might take you guys up on that call and advice as I progress! Much appreciated for all the advice and direction!

Awesome, I am happy to do so, I wish the forums were more active, I really enjoy the comradery.

I am always available phone, email, or our message system on my site.

We stock everything Camaro so we can ship same day.

Look forward to talking with you.

Ted.

[White1SS]

Originally Posted by JANNETTYRACING

Awesome, I am happy to do so, I wish the forums were more active, I really enjoy the comradery.

I am always available phone, email, or our message system on my site.

We stock everything Camaro so we can ship same day.

Look forward to talking with you.

Ted.

Hello Ted,
Do you offer a ProCharger package ? Something ~600whp on 94, maybe 650whp on 94 with a bit of race fuel added in ?
Thanks,
Joe

[WiggyB]

Originally Posted by White1SS

Hello Ted,
Do you offer a ProCharger package ? Something ~600whp on 94, maybe 650whp on 94 with a bit of race fuel added in ?
Thanks,
Joe

If I was to do it all over again to get in that 600-650whp range I would do the LT4 highside, JMS BAP, headers and a P1X Procharger. That should get you where you want to be and keep you from over doing it.