[cjperformance]

Originally Posted by FH212

What about us people that the best gas we have available is 91 at our higher altitude? Are we just cursed?

Yes

[Joshinator99]

Originally Posted by FH212

What about us people that the best gas we have available is 91 at our higher altitude? Are we just cursed?

If you really can’t find E85 then meth is probably your next best bet.

[FH212]

E85 is really scarce in my area. Closest station is 30 miles away. I wanted to add a Magnuson 2650 and headers to my car. Guess I will rethink doing anything to it.

[GreyGhost702]

Originally Posted by FH212

What about us people that the best gas we have available is 91 at our higher altitude? Are we just cursed?

I feel your pain. It's simply a cheap-factor for petrol companies. Since air pressure is lower at higher altitudes, you don't need the octane to protect against knock. In a standard NA vehicle. 91 is also a design minimum for most factory FI vehicles, which is what goes for premium fuel in higher elevations. So, there's really no demand for higher octane fuels in those regions. The car enthusiast population is far too small to create demand for 93. I think the only reason some stations carry E-85 is just for some kind of government kickback.

Originally Posted by Joshinator99

If you really can’t find E85 then meth is probably your next best bet.

What about Torco? I'd rather put that in my gas tank every fill up than rely on the meth to hit when it's supposed to.

[KingLT1]

If you used meth/alky like it was originally intended to be used then it's a non issue. You simply setup the IAT spark table to add timing @ X temp where the meth would cool the air temps too. And if it failed to activate, the timing would remain at a conservative level.

Where folks run into trouble is relying on it for supplemental fueling...if it fails to activate then you go lean, and then... Boom.

[Jmcmanus626]

Originally Posted by cjperformance

E85 for sure. My build is basically E85, port inj, procharger. I did a 3k stall conv too, but wish i had stuck with a stock stall.

I estimate my power level to be high 600whp maybe as much as 700.

Even with DRs, on the street, 1st and 2nd gear are useless at wot, and theres no traction at wot until 35-40 mph. Plus on a wot downshift it can suddenly rip the tires loose even at 50/60 mph.

I think i was happiest at around 550-600 whp. Fun to drive at that level without the huge fear of breaking loose all the time.

I think you would only need to go higher if you are planning on wowing folks at the track. I ran 10.8@131 before I added port inj and smaller pulley. I should have just stopped there. More just doesnt add anything for a primarily street driven car for me.

I appreciate all the info on this topic thank you! I might not go that high, idk yet, always wanted to build on a camaro but I might just sink it in the 650 range then.

[Jmcmanus626]

Originally Posted by KingLT1

91 isn't enough octane for the LT1 NA let alone adding boost. Have shops put superchargers on these engines with 91 for fuel...yes. But they don't run close to what the dyno numbers they get out of them show because you have to be very aggressive with timing retard in regard to air temp on the street. Those cooled down hero dyno pulls are about 75-100whp higher than what you will actually be getting on the street in the warmer months.

I would just do a LT4 fuel system, 7-8psi, and run E60. Make 600-620whp... Simple easy to tune setup without any additional complex fuel systems needed and plenty of fun for a streetcar. The Ethanol will allow you to maintain max timing even when it's hot which equals much more consistent power. If you want to push further than that for power, 700whp is about max I would push a stock bottom end LT1. Port Injection/Low side upgrade and 10-11psi will get you there. Or if you want to stay DI only for fuel then you will need +30 injectors, LPE HPFP, and JMS low side booster.

This is fantastic information! Thank you for the input!!

[Germansheperd1]

Originally Posted by Jmcmanus626

I appreciate all the info! It's been very helpful! I WISH I could have a ZL1 but that's forever out of my price range sadly, but building on my super sport over time is a much more feasible option hence why I started asking here for opinions on these things. Would love to drive one eventually but I'm very happy with the SS just like I said I'm petty and hate hellcat owners. Hahahah.

I'm definitely gonna start looking at some E85 flex fuel kits then so I can at least get some planning together for when I start building.

How is a ZL1 out of your price range? A ZL1 is 15k more than an SS. It’s going to cost you 15k to do a blower properly.
Trade it and buy a ZL1 if you want forced induction.

[arpad_m]

Originally Posted by Germansheperd1

How is a ZL1 out of your price range? A ZL1 is 15k more than an SS. It’s going to cost you 15k to do a blower properly.
Trade it and buy a ZL1 if you want forced induction.

Nope. He'd be lucky to get $30k for his 2017 2SS, then has to turn around and buy a ZL1 that is at least $60k. The successful trade ship sailed quite some time ago on this one.

[FH212]

Originally Posted by arpad_m

Nope. He'd be lucky to get $30k for his 2017 2SS, then has to turn around and buy a ZL1 that is at least $60k. The successful trade ship sailed quite some time ago on this one.

This is very true. One of the reasons I have not done it yet. I’m not interested in a ZL1 with high mileage just to make it affordable to me. I’ll keep my special ordered 2,500 mile SS and mod it.

[Jmcmanus626]

Originally Posted by arpad_m

Nope. He'd be lucky to get $30k for his 2017 2SS, then has to turn around and buy a ZL1 that is at least $60k. The successful trade ship sailed quite some time ago on this one.

You hit what I was going to say right on the head. Getting one with low milage in my price range, on a trade, near impossible let alone finding one for sale in my area. At least with my ss, I can pace out and not rush or over spend. I can buy a mod here and there, take the time getting everything I need and save up and then get it all done at my pace with no rush or worry.

[WiggyB]

Originally Posted by Jmcmanus626

You hit what I was going to say right on the head. Getting one with low milage in my price range, on a trade, near impossible let alone finding one for sale in my area. At least with my ss, I can pace out and not rush or over spend. I can buy a mod here and there, take the time getting everything I need and save up and then get it all done at my pace with no rush or worry.

The best part about building your SS is that you do it the way you want it. Puts a smile on my face knowing I did it my way.

[arpad_m]

Originally Posted by Jmcmanus626

You hit what I was going to say right on the head. Getting one with low milage in my price range, on a trade, near impossible let alone finding one for sale in my area. At least with my ss, I can pace out and not rush or over spend. I can buy a mod here and there, take the time getting everything I need and save up and then get it all done at my pace with no rush or worry.

Originally Posted by WiggyB

The best part about building your SS is that you do it the way you want it. Puts a smile on my face knowing I did it my way.

Couldn't agree more with both of you Yes, a ZL1 is a stronger foundation, but nothing like having a build that is exactly how you would've configured the car had GM allowed you to, and of course any extra power is a great amplifier for the smiles per gallon "metric"

[Jmcmanus626]

Originally Posted by WiggyB

The best part about building your SS is that you do it the way you want it. Puts a smile on my face knowing I did it my way.

And there is no "rush". It's at my pace and I don't need to worry about if the car, is even available to buy. I have it, I can then get it to how I want without worry if it will even be option. Plus I like projects that keep me busy and teach me something new.