Need 3800 advice - 911

[Yaj Yak]

It seems that everyone that is blowing l26's up, are running asinine amounts of timing on e85. It usually doesn't work well on our cars.

Also, keep in mind that if you go with a l26, you will either need to turn the boost down or get more mods to keep knock down from the higher compression.

yeah im fine with that. i only run like 14psi anyways.

 

[Xtant12]

How would you control that on a supercharged application, just stick to a 3.4 pulley?

 

[Xtant12]

I'll have xp cam, 1.6 rods rockers gen5 charger and ic, intake and exhaust on e85 with 80 lbs injectors. You think I'll blow it up??

 

[SaturdaysGS]

i think id be okay l26'ing my car. would be better for street fun. get some pep in its step to get rolling. run lower boost. im cool with that

I think we have similar set ups, except I'm L26. I did however push a headgasket, but admittedly I was being extra hard on the car (rather than my usual hard) running 15lbs.

 

[GTPpower]

Oh jeez....i didn't realize you had that many mods. You could probably run a 3.0 at least.

 

[Xtant12]

That makes me feel better

 

[1quick]

I think we have similar set ups, except I'm L26. I did however push a headgasket, but admittedly I was being extra hard on the car (rather than my usual hard) running 15lbs.

What gaskets? I was running 17psi on a stock l26 head gaskets and bolts, head studs would help prevent that though

 

[1quick]

I'll have xp cam, 1.6 rods rockers gen5 charger and ic, intake and exhaust on e85 with 80 lbs injectors. You think I'll blow it up??

My buddy is running a 2.8 on that set up on 93 octane

 

[1quick]

I would think that set up on e85 with an l26 should be able to run a 2.8 maybe more, the top swaps seem to favor boost over timing, I ran a 3.0 on e85 with no intercooler on a l26 with s1x cam in my 2006 gp

 

[Xtant12]

My buddy is running a 2.8 on that set up on 93 octane

Yeah, as soon as I heard you can blow a rod I got worried, but I don't think I'll make that much power. I'll finally be part of the 300+club though!

 

[SaturdaysGS]

What gaskets? I was running 17psi on a stock l26 head gaskets and bolts, head studs would help prevent that though

Stock gaskets and bolts. Still need to fix it lol

 

[b4black]

Use your knock sensor to determine the pulley size and/or timing to run. No knock, add some timing or pulley down. If it's knocking, go the other way.

The higher compression L26 will just push you closer to the KLSA (knock limited spark advance) sooner. So either a bigger pulley, or less timing.

If you're not watching the knock sensor, then you're driving/tuning blind.


I was running a 2.9" pulley with 24* timing and everyone was freaking out about it being too much. I had zero knock most of the time (just a little knock once in a while). I dropped to a 2.7" pulley and backed out 8* of timing (back to stock 16*). I then added 4* until I was on the edge of knock again. In the end, car ran the same ET either way.

 

[Xtant12]

Well they called me yesterday to make the call. I'm going to do the heads, this way everything is all new. They said the heads will be done Friday and they can start the swop. I'm very excited!

 

[Xtant12]

I know everyone is going to have something to say about this, but I made the call to lose the E85. I don't like having to carry a 5 gallon gas tank with me everywhere I go.

 

[RICH17]

How fast do you run out of 16 gallons?

 

[1quick]

I got 16mpg on 100lb injectors with twin 340lph pumps e85 of course

 

[b4black]

With the amount of money you have in this car, you should invest in HPTuners. Then you can easily swap between gasoline and E85 when you want.

And play with different timing and pulleys.

 

[Xtant12]

On a full tank of Premium it used to last me about 335 Miles when I did 85 I would get 189 to 200 miles

 

[Xtant12]

Driving nicely I got about 330ish

 

[PANDA]

If you want gas mileage buy a Honda. Keep E85

 

[Xtant12]

Nice to hear from you panda!

 

[Xtant12]

I want to be able to go on a cruise with you guys and not have to worry about running out of gas all the time

 

[10sec]

Then get HPTuners and change the tune when you want to run gas. It's like a drop in the bucket after you get the bill from them to do all of that shit to your car. You're really leaving a lot power on the table for a convenience that you'll only need a few times. It'nit?

 

[smug]

I have an L26 with a 2.6 pulley, 20+ degrees of timing on E85 right now and it has not blown up yet.

I am actually thinking of going back to 93 octane gas, the correct pulley, and timing.

 

[Xtant12]

Update- They emailed me and said they have the L26 rebuilt and all my stuff from the old motor installed. They want to get it in today or Friday and hoping for the Dyno Monday or Tuesday.. I'm excited!

Hey Smug, thanks for your post. It helped with my choice of the L26.