[Evansa22]

Ported blower with bolts ons. Wondering how much horsepower I can get going from e25 to full e85 which is around 70% here. Contemplating heads/cam package which would give me a nice bump. However I'm wondering if I go port injection and run full e, it might give me the jump I'm looking for without opening up the engine. Also the port would be a few k cheaper parts/install. Let me know your thoughts, thanks

[BlaqWhole]

Heads and cam ARE opening up the engine tho. Unless you mean pistons and rods which won't be an issue at those levels.

With that setup, 100 octane, and Kong X, you'll be at least 890 horsepower. To the wheels.

[KingLT1]

Probably 30 whp.

[Stephen12ZL1]

as long as there is an appropriate tune with proper timing and fueling I would agree with 30rwhp

[Evansa22]

Originally Posted by BlaqWhole

Heads and cam ARE opening up the engine tho. Unless you mean pistons and rods which won't be an issue at those levels.

With that setup, 100 octane, and Kong X, you'll be at least 890 horsepower. To the wheels.

Should have clarified, thinking one or the other. If I go port, wouldn't be doing heads/cam, so not opening it up. Gonna dyno it Friday and see where its at, hoping around 675 whp but we'll see. MAD ported blower with 8% upper at 13.5 psi. Big gulp, 103 tb, 2" headers, jms booster

Originally Posted by KingLT1

Probably 30 whp.

Thanks King, always appreciate your input/knowledge

[Evansa22]

Originally Posted by Stephen12ZL1

as long as there is an appropriate tune with proper timing and fueling I would agree with 30rwhp

Right on, might just be holding out and do the heads/cam. 30 horses for the cost of port doesn't seem like the right direction as I won't be trying to push more air, just more ethanol

[Camaro1973]

Originally Posted by BlaqWhole

Heads and cam ARE opening up the engine tho. Unless you mean pistons and rods which won't be an issue at those levels.

With that setup, 100 octane, and Kong X, you'll be at least 890 horsepower. To the wheels.

HAHAHAHA I just got the joke..




EPIC. lol

[Evansa22]

Originally Posted by BlaqWhole

Heads and cam ARE opening up the engine tho. Unless you mean pistons and rods which won't be an issue at those levels.

With that setup, 100 octane, and Kong X, you'll be at least 890 horsepower. To the wheels.

Wanted to ask you a question on your build in regards to the Whipple. Does it not require hood modification or special valve covers like the 2650 does? Could be a selling point for some over the maggie

[BlaqWhole]

Originally Posted by Evansa22

Wanted to ask you a question on your build in regards to the Whipple. Does it not require hood modification or special valve covers like the 2650 does? Could be a selling point for some over the maggie

No special valve covers are needed. I haven't really looked at the under part of the hood but I don't remember anything sticking out as being modified or cut. I understand that the 2650 did require extra modifications to be installed. I still thought it was worth the extra money to have the better blower. And again, I am happy with my setup considering that when the 2.9 is maxed, the 2650 would probably be just as maxed. But the 2650 guys are typically making more HP with less boost on the same octane gas with other similar mods.

What fueling mods are you considering to allow you to run that much Ethanol? I am currently talking with my builder about the possibility of upgrading to be able to run full E85. We're going over the costs. It is a lot but I don't believe in skimping out. Gotta pay to play.

[Camaro1973]

Originally Posted by BlaqWhole

No special valve covers are needed. I haven't really looked at the under part of the hood but I don't remember anything sticking out as being modified or cut. I understand that the 2650 did require extra modifications to be installed. I still thought it was worth the extra money to have the better blower. And again, I am happy with my setup considering that when the 2.9 is maxed, the 2650 would probably be just as maxed. But the 2650 guys are typically making more HP with less boost on the same octane gas with other similar mods.

What fueling mods are you considering to allow you to run that much Ethanol? I am currently talking with my builder about the possibility of upgrading to be able to run full E85. We're going over the costs. It is a lot but I don't believe in skimping out. Gotta pay to play.

No other modifications are needed with the 2650 except either cutting the stock valve covers and relocating the coil packs or replacing with after market covers.

[KingLT1]

If I was doing a LT4 build and had ethanol available first thing I would do is raise the compression...especially when doing a cam that kills dynamic. Ethanol loves the compression and you don't have spin the supercharger as hard to make power.

If I ever do rods/pistons in my LT1, I will be keeping stock compression that way I won't ever need to worry about maxing the Whipple 2.9 out to make power. Should be able to make the same power with 2-3psi less boost compared to stock LT4 compression.

Now if we are talking a pump gas build then yea lower compression is a must.

[Evansa22]

Originally Posted by BlaqWhole

No special valve covers are needed. I haven't really looked at the under part of the hood but I don't remember anything sticking out as being modified or cut. I understand that the 2650 did require extra modifications to be installed. I still thought it was worth the extra money to have the better blower. And again, I am happy with my setup considering that when the 2.9 is maxed, the 2650 would probably be just as maxed. But the 2650 guys are typically making more HP with less boost on the same octane gas with other similar mods.

What fueling mods are you considering to allow you to run that much Ethanol? I am currently talking with my builder about the possibility of upgrading to be able to run full E85. We're going over the costs. It is a lot but I don't believe in skimping out. Gotta pay to play.

At the moment I'm considering the SPI port injection kit from weaponx, Crawford is all out of stock until they get caught up. Only thing negative I saw about the Crawford is it says the fore double or triple in tank pumps create a lot of heat and for road course could be an issue. If I go cam then might do +30 injectors which won't get me to full e85 but I'll gain a nice bit of horsepower just from the cam/heads so wouldn't worry about going full ethanol.

Originally Posted by KingLT1

If I was doing a LT4 build and had ethanol available first thing I would do is raise the compression...especially when doing a cam that kills dynamic. Ethanol loves the compression and you don't have spin the supercharger as hard to make power.

If I ever do rods/pistons in my LT1, I will be keeping stock compression that way I won't ever need to worry about maxing the Whipple 2.9 out to make power. Should be able to make the same power with 2-3psi less boost compared to stock LT4 compression.

Now if we are talking a pump gas build then yea lower compression is a must.

There's a few e85 stations near me but I want to keep the ability to run 91 and not have the worry about detonation. So far tuning on e has been great even tho I can't run much. No knock and car has been running really strong other than cooking one of the msd wires

At this point, however much power im making, car feels like a rocket 1st-3rd gear. Its only at speeds that would be very illegal on the street which it feels like it could use some more kick

[KingLT1]

Yea then I would leave compression as is.

[CW3SF]

Originally Posted by Evansa22

Ported blower with bolts ons. Wondering how much horsepower I can get going from e25 to full e85 which is around 70% here. Contemplating heads/cam package which would give me a nice bump. However I'm wondering if I go port injection and run full e, it might give me the jump I'm looking for without opening up the engine. Also the port would be a few k cheaper parts/install. Let me know your thoughts, thanks

Just curious why you are only running e25? Do you have a JMS booster? If you only have bolt ons right now (headers, catback, throttle body and CAI) you could run up to e60 at sea level with only a JMS booster on your low side. If you then port the blower, you should be able to run somewhere around e50ish. Your tuner will be able to check your headroom on pump and injector at that point and let you know what blend is safe. Are you opposed to the booster?