Just saying... I had the sane issues he's having. Called my tuner he thought I was getting spark blow out. Went 1.5 steps colder "br8es" no more issues.

All in all I hope you get it figured out bro!

 

My boost gauge is reading 25.5-26. I got the fuel pump from lancershop.com I'm getting with my tuner Saturday to go over the logs and everything together. At that point ill find out the boost/load cut. And get back to you all. As of right now I've done second third and fourth gear pulls getting the same issue at the exact rpm in every gear.

 

There is nothing wrong with .018 as a plug gap. I run it in every Evo I put plugs in from stock turbo to GT42R. Just made 918whp on the stock ECU, a non CDI ignition, and NGK BPR8ES plugs with that gap. There is also nothing wrong with 280 cams on a stock turbo. This is the problem with the internet, for every good response there are 10 others with misinformation.

 

There is such thing as too short of a gap. I wouldn't go lower than .022 with his setup. I still think 272 would have been a better match all around but hey if he just wants to drag race and rev the **** out of it to make power then I guess go for it lol

 

280 cams and stock Viii turbo and valve springs also might want to look up the vendors here and pick a good reputable shop to take the car to. People on here can only help so much, personally I'd take it somewhere and pull the wallet out before you end up paying for a new motor and whatever else. Your mods list isn't adding up right and knock after a tune isn't a good thing.

 

Probably the best advice so far. And hope the guy that says 280 with stock 8 turbo/no mivec is a good idea is not his tuner.

 

if they are hks 280s then they are pretty mild compared to lets says s2's or kelford 272. I had hks 280's with stock 9.8 turbo and it was still fun as hell and not laggy at all.

 

Good point, not all 280's are the same

 

My mods are just fine. You gotta realize I am just beginning this mods list and doing things slowly and safely. My tuner is reliable and very experienced. And I ask him before I do/buy any mods. I trust what he tells me and he would take full responsibility of something were to happen.

On to the matter at hand. I will be gaping the plugs back to .022. And will be meeting with him Saturday to reflash the tune and check everything from before and after. I am leaning toward fuel issue. But we will see. As far as taking it to a shop. I have a shop that I use and they have done every mod aside from little stuff that I did but they did my clutch and trans. Cams timing belt alignment injectors and fuel pump along with tuning it every time for every mod step by step.

 

Stock plugs and 26psi....

 

Plugs are bpr8es

 

Your right, there is such thing as too short a plug gap and .018 is definetly not too small. This has been proven on the tons of Evos driving around with ZERO issues on that gap. 272's work well with a stock turbo as do some 280's. I know this since I have seen thousands of dyno pulls with stock turbo Evos that use both 272 and 280 cams. I don't speak from "internet" experience, I speak from actual real world experience. Seeing them on the dyno/track, swapping cams on the dyno and seeing the difference etc.

 

The guy that said that has actually built fast Evos and not just read about them on the internet. The same guy speaks from real world experience instead of what he reads on the internet.

 

Check the ground on your cam angle sensor.

 

Put in bold for clarity since it you now say some 280 cams and I can speak from real world experience as well And I'm sure it may run at 0.018 but a higher gap would be more efficient with his setup. Most 280 cams are too aggressive for an 8 turbo, no mivec, and not a lot of supporting mods...