Deff get the shifting problem figured out before hitting the nitrous. This could have bad results with the motor.


Do you have a RPM performer plate? I have the same thing on a carbed 383 13:1 motor. I switched the plate out for a zex perimeter plate right before race day. I also use a 4500 psi nano bottle, so my system is totally unique to my app.

I would say based off my results with the 58N/61F and 25 deg. I think you need to pull more to be safe and work your way back up. And get some 110 mix going on or something.

 

U think i need more timing pulled with stock compression and e-85? I think if i mix in 110 its gonna mess my tune up since its tuned for e85. I would think itd richen it up can anyone confirm this?

 

Yes its a performer rpm plate, id never had issues shifting it before just fri nite. I like ur car to jr, wish i made that kinda power on motor.

 

Thanks man, You might be right about the 110. Get a hold of raceone85.com this guy is really good with E85 and nitrous. He could for sure hook you up.

 

Ill make an approx 1/8 run tomm evening and put a couple plug pics up

 

I'd stick with straight E85.

 

heres a couple plug pics from a 2-3 pull, not as long as id like to go but i was running out of room. what i am getting by reading these is it may be a little rich still (afr peaked at 8.0 but was mostly 7.6-7.9) timing seems pretty good (on the bend and not the flat) theres a slight honey color up till about the first thread. im not sure if these pics are going to work well for anyone (they are from my cell until i find the cord for the camera to upload from it) let me know your opinions. this was with a 68n/57f 25 deg of timing 4000 on. thanks for all the help guys.


also i pulled plugs from num 8 and num 1. 8 is first pic 1 is second

 

anyone have suggestions on what i should try? might go back to the 1/8 fri not sure what i should do differently

 

I agree, use straight e85, and if you pulled these plugs properly and that was at least a decently long pull here is my advise, if not disregard it.

remember dont get caught up with where timing needs to be, there is no magical place where it has to be, where your motor is happy is where it needs to be. The pics are hard to see anything and I hate making a suggestion based on something hard to see, but it looks like the plugs match your afr 7.6 is still to rich, you want to try and get into the ~8.5ish area if you are you using the e-85 scale or .87 lambda. did you wipe off the strap of the plug? Timing looks to me like its just starting to put some heat on the tip or it could be my screen, but none the less if it were mine id pull some more timing out and make sure you get the fuel right first, as you lean the car out you may start to see some heat come into the strap. your plugs look to clean for e85, its not even burning the cadium off the base ring, that base ring when you start leaning the motor out will start turning an oxidized color and work its way around the base, you want to see between 1/2 and 3/4 of a turn. did you clean the plugs with carb cleaner? I want to make sure you bare doing everything right before going forward. remember reading an alcohol plug is basically backwards to reading gasoline.

 

i did spray them with cleaner after i pulled them, im going to have to get more fuel jets to lean it out more, im a little suprised with an 11 jet spread on e85 that its still rich but plugs and wideband cant be wrong. im thinkn i need to make a longer pull and check again. these plugs now have about 10 miles of drive time on them, could i make a pull and shut it down and get an accurate reading or do i need to put a new set in? i know a new set would prolly be best but itd prolly be tues now before i could get a set in. i do have 4 new and the 2 that i put pics up of, prolly not ideal but could i put two new in a couple cylinders and read off those? what nitrous jets with interchange with my edelbrock kit or do i need to get jets from edelbrock?

 

how long was the pull approx? i always use brand new plugs and as should you to get in the habit when you start sneaking more n2o later on down the road. Really we need you to make a full pull and get some really good plug pics, whats your hottest cyl?

 

i would have to say mayb 3/4 of an 1/8. i have a straight i can spray it and then coast and turn into shop drive but that night i was having issues with it hitting the wot switch and when i got it to spray finally i wasnt at the right spot in road (ended up pushing car like 1/2 mile to pull plugs). it seemed to me that 8 was the hottest. i think what ill do this time is put a couple new plugs in and make a longer pull then pull those new ones to read and get another set on order. ended up not going to track last night so i havent sprayed it since these plug pics.

 

i would say if your limited with plugs at least get us a plug pic form cyl 8 if that is your hot cyl and make sure its a least an 1/8 mile you may not have ran the car long enough to create any heat.

 

ok will do thanks

 

no problem man! if you want shoot me a pm with your number and i will share with you what plugs should look like on e85

 

Branden can help you more than I can on E85, but couple things first.

You have to do a longer pull. You will never know truly how much heat is being put into the plug on a short pull, you have to duplicate as close as you can or exactly as you would run it at the strip.

As Branden said though the cadium is just BARELY beginning to show and burn off so you have generated no heat at all in the plug.

Let us know how it goes and take pictures for us.

I would like to see the heat closer to the flat portion myself, but for now let's just focus on getting you straight with a longer pull and getting more heat in the plugs.

I honestly wouldn't make any changes on the tune-up until you can get us pictures of a true 1-3 pull. Then go from there.

Do you have any bigger nitrous jets that you could up the nitrous jet some with and leave the fuel alone?

 

My next n20 jet is 78 which with the 57f i would believe to be too lean. I need more jets. Do u have jets that will work in my edelbrock plate at tick martin?

 

I would contact Steve Johnson at Induction Solutions. We don't have any in stock that will, if you would like I can call him and order them, but you can just as easily.

And yes that would be too lean I would think.

 

Ok i will try to contact him. What jets should i get first for the 68n and also mayb fuel jets if i put in the 78n

 

I would go to a 55 and a 54. You'll want it at 8.3 according to my math to start getting it where it's going to want to be. That should put it around 12.4 on the gas scale if it's 8.3 on E85 scale. 8.4-8.5 would equal 12.6-12.78.