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There are probably only a few people on the forum that could correctly estimate at what timing you need. I'm not one, and I doubt that those who could will because they are paid tuners. Suggest you hit the dyno and tune for peak power while watching for knock. Back off 1-2 degrees from the timing where you first see peak power.
Im sure you would be doing a few People a favor by letting us know who the tuner was. I wouldn't want someone else to have to go through this....
bump, kind of shady how this guy just disappeared after that tuner obviously blew his motor up..... would love to know what ******* was response for this. there is no way that was unintentional, seriously.
I used to be able to run huge amounts of timing before with the following upgrades:
MR Cams, 850cc injectors, FP Green Turbo, Piping, Mishimoto Intercooler, 3" Exhaust, Turbo Elbow and High flow manifold with no cat and set at 25psi boost going down to 22psi.
Now I have fit some HKS 272 cams and I am having a huge problem with knock when the boost kicks in.
Yesterday I started working on eliminating the knock and put the boost down to 21psi and I've realised that I'm removing so much timing just to try and get it to not knock.
What do you guys think? Am I removing too much timing? Could there be something else that isn't working right? Like too little fuel?
I used to be able to run huge amounts of timing before with the following upgrades:
MR Cams, 850cc injectors, FP Green Turbo, Piping, Mishimoto Intercooler, 3" Exhaust, Turbo Elbow and High flow manifold with no cat and set at 25psi boost going down to 22psi.
Now I have fit some HKS 272 cams and I am having a huge problem with knock when the boost kicks in.
Yesterday I started working on eliminating the knock and put the boost down to 21psi and I've realised that I'm removing so much timing just to try and get it to not knock.
What do you guys think? Am I removing too much timing? Could there be something else that isn't working right? Like too little fuel?
You still have too much timing. Also, when you are building your timing maps keep in mind that timing shouldn't make large jumps from one cell to the other. And for a given load timing shouldn't go up and down as rpm increases and for a given load timing shouldn't go up and down as rpm increases. Example I see where you have 12 then 7 then 11 at 240 load. You also have a jump from 1 degree to 16 degrees in the 240 load column.
I would start with a totally stock timing map if I were you, or copy any pump gas timing map in this thread that was deemed good. Or pay a professional like TSComp to tune it for you.
I highly suggest that alot of you guys starting off please do some more research that is not specific to tuning evos but EFI in general. Some of the timing maps posted are HIGHLY aggressive and just plain random.http://www.barnesandnoble.com/p/engi...lickid=3x24151
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Jul 11, 2015, 11:01 AM
