Under boost you can literally blow out the candles if you have too much gap.
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Under boost you can literally blow out the candles if you have too much gap.
Are the stock coils that weak?
Boost creates more static compression and it's harder to fire a spark in high compression. The coils are great but things start working against you. Even nitrous applications require you to pull the gap down. GM even recommends only .045" gap on plugs now instead of .060" like they used to call for on HEI vehicles.
First of all look at o2 sensors on bank 1/2 sensors 1/2 mine still work and set no codes .. but dont work correctly.. they never see rich.. they just go from .440-.460 in a loop over and over... Next with the whipple .. did you disconnect the whipple box? .. There is a resisor in the harness... Mine was on the MAF plug.. it will show the truck reading -40 degrees at all times... Looking for Codes .. Thats Simple Autozone Stuff... Someone that can Read Data will be a much better help... Bolth scanners have that option.. I will be its the Intake air temp.... it will read well below zero all the time...
OK Is your Intake Air temp sensor relocated? It won't matter that much but I know exactly what your problem is. At least I believe it is the same problem I have. The whipple gets hot and your intake temps get high. REAL HIGH. This causes knock and well it just sucks. Feels like the truck falls on its face. If it has been sitting all night and is a COLD morning. I bet it runs like a raped ape for a minute or 2. I hope it is something else but I feel your pain.Even in 40 degree temps my whipple gets HOT. The intake air temps will be over 125 just cruising. If you nail it or 1/2 throttle the temps sky rocket. I have see over 250 degrees with just a half throttle. My meth kicks in and it will drop down to the 80's but as soon as I let off the gas the temps sky rocket. My truck just gets slower and slower. I ordered a 10lb pulley from whipple and they sent me the wrong one. I was hoping to see if turning the boost up would help at all. I am also going to put the factory air box back on in hopes that it will lower intake air temps. :puke:
I am currently looking for an engine and a nitrous kit and will most likely be selling the whipple real soon. I am really unhappy with them for not making the truck system with an intercooling setup.
If I don't find and engine I might build a custom intercooler system for it by putting an edelbrock carb style intake with intakeelbows.com. I think that would cure my problem.
Read this also.
http://www.silveradoss.com/forums/in...141&hl=whipple
Good luck.
The resistor will be placed in the harness by who ever installed the kit.. its not built into the box... it makes the computer see Sub Zero intake Air temps.. so it keeps it really rich... The am not 100% sure on your Problem Zeake .. What did you do with the Vacume lines on your truck when u removed the Whipple electronics?? !!! I have an idea on whats going on with yours as i am typing this..... The Bypass valve on the Lower left side of the whipple ( its controled by the whipple Box with an electric solonoid) whats going on now is your whipple is in boost mode ALL the time... It never gets to relive that case pressure/heat... At cruise speeds does your boost guage read Vacume also ? mine would cruise around 15" ... you need to Re route the Vacume lines on your truck Zeake so that the Bypass will work ... Its on the under side of the whipple.. its a round Black box with 2 sets of Vacume lines... also just a little upstream will be the small solonoid with two wires that run to that to on/off that controls that vacume... so at light throttle it will relive the case pressure and the blower will spin free...
As far as Plug Gap... .30 gap is fine like Red Said.... No Matter what type of engine it is... I think the big caps in stock form Help Idle a motor idle clean for Sniffer testing.. but its very hard on the Coil and Wires... I run an Whipple on a Big car with an MSD 44 and gap the plugs @ .015 That isnt a typo !!
I'm new to the LSX motors but no stranger to boost. There is no way I would run a plug gap that small unless I was running a Mag.
SangerRat .... U think .030 is small??...
I have ditched the whipple tuner for Nelson's whipple tune beleive it or not Whipple recomended Nelson performance to me for my PCM rather then use thier setup. Also the intake temp is if anything a little high I don't have the exact #'s but the mechanic with the tech2 has all of theose live data #'s documented. He is gathering as much info as he can and going to talk with Nelson. the truck does run better when cold but still like ace. I still have not replaced my cam sensor yet, my 2yr old daughter spent the night at the hospital dehydrated from chucking everything she put in fro two days. Thanks for all the help and I will get a vid up tomorrow after the cam sensor.