My new e85 16g setup!!

[JayRolla]

I have never knocked on e-85. The most i can ever remember was maybe .5 counts.. So i'm confused why you are having such a rough time with it.

Ahh yea me too, thats why I think its PK. My brother can run 28psi and more timing than me and only thing he has is the stock 1g pistons and I have the 2g pistons.

 

[Black_Bullet]

Ahh yea me too, thats why I think its PK. My brother can run 28psi and more timing than me and only thing he has is the stock 1g pistons and I have the 2g pistons.

Though, the engine does get noiser the more power you make and PK is highly possible, but even if you guys are right, dont take the chance of it being real knock out of the picture, try those things I mentioned up above and see if it clears any knock up.... Besides the loosening up the knock sensor idea, the other things I suggested shouldnt really help that much if It were really just fake knock. Perhaps the car will respond better if you went even a tad bit leaner since it did show some improvement going leaner than your last AFR so far.
There is a such thing as rich knock, a sloppy tune would cause that.

 

[gsxtasy]

Ahh yea me too, thats why I think its PK. My brother can run 28psi and more timing than me and only thing he has is the stock 1g pistons and I have the 2g pistons.

e85 should take higher compression well, since it's so knock-resistant. I know if i built another engine it would have at least 9:1. I don't think that would be your problem, i have 8.5:1's right now and have never knocked either, even at crazy lean afr's. Maybe you still have some pump gas still in there? I'm not sure, but it sounds fishy.

 

[JayRolla]

e85 should take higher compression well, since it's so knock-resistant. I know if i built another engine it would have at least 9:1. I don't think that would be your problem, i have 8.5:1's right now and have never knocked either, even at crazy lean afr's. Maybe you still have some pump gas still in there? I'm not sure, but it sounds fishy.

I have filled it twice already since the first tank so it should be full of e85 now. I leaned it out to between 11.1-11.3 and it seems to stay under 8 counts of knock. But sometimes it will get a lot more and thats why I think its PK sometimes.

I loosened the knock sensor and it didnt do anything. I still get 49 counts while cruising pretty much all the time. I think I'm going to replace the lifters and maybe a new knock sensor. Also swap the plugs tomorrow with a stage colder/non projected.

 

[JeffGST]

Forget about the part throttle knock.

Also, you do have base timing set correctly at 5 degrees BTDC, right??

 

[JayRolla]

Forget about the part throttle knock.

Also, you do have base timing set correctly at 5 degrees BTDC, right??

I dont worry about the part throttle knock, but it loves to stay with the high rpms sometimes. I have base timing at 0*!!! because I thought timing may be too high with the safc correction. I dont know if putting it back will make knock worse if its real knock.

 

[turboglenn]

Don't forget to cvhange your filter soon too! ( just in case it's a fuel issue starting to arrise) I took min eoff after 5 tanks and i could barely blow through it at all. I was amazed how clogged it got. I took it apart and took pics of the paper element inside, but i don't have them hosted right now.

I now have the fuel lab 818 filter with 10 micron SS element inside and my car is running a lot richer than it used to on the same pulsewidth. Also i was getting a good bit of knock daily before changing the filter, that's why i bring it up. I haven't seen any knock since gettign the flow up

 

[JayRolla]

Don't forget to cvhange your filter soon too! ( just in case it's a fuel issue starting to arrise) I took min eoff after 5 tanks and i could barely blow through it at all. I was amazed how clogged it got. I took it apart and took pics of the paper element inside, but i don't have them hosted right now.

I now have the fuel lab 818 filter with 10 micron SS element inside and my car is running a lot richer than it used to on the same pulsewidth. Also i was getting a good bit of knock daily before changing the filter, that's why i bring it up. I haven't seen any knock since gettign the flow up

Thanks glen, that will be my next upgrade. I just wanted the boost juice now. I do love the boost even if it gets some knock. Still fun, I just dont want to kill this new motor. Im going to have my mechanic look at the tune, he knows his stuff with e85.

 

[wishihadatalon]

Another reason MSnS is becoming a more recomended ECU by myself around here. After tuning Ajax's car on the newer version of MSnS i have to say, while other ECU makers are sitting idle letting people be happy with what they produce the guys at megasquirt are definitely taking strides that are putting them ahead of the game in aftermarket ECU performance.

P.S. I am getting around 200 miles per tank on the corn juice myself (not too different than what i was getting on a rich pump gas tune)

Open source ftw

 

[wishihadatalon]

Thanks glen, that will be my next upgrade. I just wanted the boost juice now. I do love the boost even if it gets some knock. Still fun, I just dont want to kill this new motor. Im going to have my mechanic look at the tune, he knows his stuff with e85.

Are you ever checking your plugs? Those will give you a very good idea of real knock or not.

 

[JayRolla]

What should the plug look like if I'm seeing knock, also what should it look like when you get preignition?

 

[JayRolla]

Well took the car up too the mountains for a cruise. Leaned her out to around 11.1-11.3 and she seems to like it a lot better. I think im between 4-6 counts max of knock. Starting to beable to tell the difference between real knock and PK I think.

Sucks though because on the way back my clutch fork broke!! Have to have it towed over 60 miles and then pull the tranny. How fun!!

 

[DSMsOwnYourV8]

ouch man that sucks... I'm about to order some injectors and buy greddy e-manage from my brother, and I'll be running E-85 too.

 

[JayRolla]

ouch man that sucks... I'm about to order some injectors and buy greddy e-manage from my brother, and I'll be running E-85 too.

Sweet man, yea i have to have it towed from woodland park. Car is running awesome. Thing breaks lose in second somtimes now when boost hits, expecially if turning just a little. You will love the stuff. My 1200cc's are sitting at 58% max IDC so I have lots of room to work with now.

Have Kevin and Jack tune it for yea, they did wonders with my brothers car. Im going to have them look over my tune and see what they think about the little knock I am getting. I want to turn the boost up too around 28-30psi!

 

[turboglenn]

That sucks your fork went out, it's always the little stuff that stops teh big fun

I'm glad you're getting the car dialed in! I'm guessing i need another pump now before i can proceed any further. I also need a different wastegate cap so ican run more boost. it's always something.

You hsould pay a visit to omaha and feel your car at only 1300ft above sea level That 5k+ crap would drive me insane, but i do breathe a lot better myself up there. It's the only place i've been where allergies didn't just kill me.

 

[Black_Bullet]

^ Nah he should come down to Fl were its sea level and he wont need e85 to break loose in 2nd

Jayrolla, sorry about your clutch fork.
If your making a lot more power this would be the time the weak stuff breaks on you randomly.

I was going to ask, why do you think you have so much phantom knock, what harsh vibrations do you have? ANything touching that shouldnt be, or balance shaft removal?

Well i removed my balance shafts and it didnt change much, I had a ton of PK when my 3in megan DP used to sit smack against my T case and I had to dent in the flex section some for clearance.
I also disabled the PK under like 3k with my chip, after those things my PK is hardly present unless I downshift hard or jump on the 2step too fast.

 

[wishihadatalon]

What should the plug look like if I'm seeing knock, also what should it look like when you get preignition?

http://www.dragstuff.com/techarticles/reading-spark-plugs.html

I don't know the ins and outs but I mainly look for specks on the porcelain part of the plug. I am going to be doing quite a bit more research and application with all of this very soon.

 

[turboglenn]

Back on th topic of knocking on E85. AS i stated earlier in my other post, i too was getting knock even in the 11's on AFR when i was forcing fuel through the clogged ass stock filter (even though it was new when the e85 swap was done) Now that i have a decent filter and line from it to the rail, I'm still not getting enough fuel from the pump, but i just did a 3rd gear full pull at 25psi and 23* timing and the AFR's were from 12.8 - 13:1 the whole way through the pull and i didn't see one degree of timing get pulled. My point being it may not be so much AFR as it is a requirement of a "steady" supply of fuel the entire time.

I got the fuelab 818 95-99 eclipse kit from extreme psi and it's not solved all my issues but it's made fuel delivery a lot better!!.

I'm still waiting on a new 255HP and to get a new alternator in hopes that i will finally have enough fuel.

On a side note. Dropping from 43 psi BFP to 36psi helped get me from over 100% iDC down to 96% a the end of the power-band, so you might give that a try as well.

keep us updated!

 

[JayRolla]

^ Nah he should come down to Fl were its sea level and he wont need e85 to break loose in 2nd

Jayrolla, sorry about your clutch fork.
If your making a lot more power this would be the time the weak stuff breaks on you randomly.

I was going to ask, why do you think you have so much phantom knock, what harsh vibrations do you have? ANything touching that shouldnt be, or balance shaft removal?

Well i removed my balance shafts and it didnt change much, I had a ton of PK when my 3in megan DP used to sit smack against my T case and I had to dent in the flex section some for clearance.
I also disabled the PK under like 3k with my chip, after those things my PK is hardly present unless I downshift hard or jump on the 2step too fast.

Well on my last car I didnt have Pk. But I dont remember if it was before the swap to the new body or when I did my new head that caused the PK. My buddy built the head and didnt use the revised lifters like I thought he was so Im pretty sure that is the issue.

I will replace the line and filter ASAP, but money is tapped. Have a newborn coming in a couple weeks!!!

 

[DSMsOwnYourV8]

Sweet man, yea i have to have it towed from woodland park. Car is running awesome. Thing breaks lose in second somtimes now when boost hits, expecially if turning just a little. You will love the stuff. My 1200cc's are sitting at 58% max IDC so I have lots of room to work with now.

Have Kevin and Jack tune it for yea, they did wonders with my brothers car. Im going to have them look over my tune and see what they think about the little knock I am getting. I want to turn the boost up too around 28-30psi!

Awesome man I can't wait... I'm going to order some 1600's today from Mapperformance for only $339 shipped. Soon i'll have the e-man and i'll definitely take it to jack to tune it for me. We should go cruising after we get everything running right.

 

[JayRolla]

Yea that will be fun. I have a little group with me and my friends, its usually me with 5 other 1g's and an evo that cruise. You would make 7 dsm's!!

 

[DSMsOwnYourV8]

haha for sure. I have another friend from Pueblo with a 1g, and a buddy with a Silver Evo - you might have seen it at my house - i'll bring them along.

 

[JayRolla]

Yea ive seen that silver one. My buddy have a blue evo. About to through in some 950's and have the ecu flashed so he can also run e85. A guy in denver made 360whp at 26psi on a stock evo with e85.

 

[DSMsOwnYourV8]

Jesus that's good, this Evo has a boost controller and a fuel pump, he has a hard time keeping these things on the road or he would have more done. He has a 3" waiting to get put on, but he doesn't know where he can take it to in the Springs where they will put it on because it wipes out the cat.

 

[JayRolla]

Jesus that's good, this Evo has a boost controller and a fuel pump, he has a hard time keeping these things on the road or he would have more done. He has a 3" waiting to get put on, but he doesn't know where he can take it to in the Springs where they will put it on because it wipes out the cat.

Take it too Jacks if he has the exhaust. My buddy has the cheap ebay kit and its very nice. Jack used too do exhausts but now is too busy with the trannys. But kevin will install it for him if you buddy cant do it himself.

Tell him to get some big injectors and take it too revolutions. He can through e85 in and they can flash the ecu and tune it for him. Can make good power with just the setup he has.