Dyno Worries, Ease My Mind

[mSHOCKERp]

Ok, so I dynoed my car on a Dynojet when all I had done to my car was a Forge BOV and I pulled 155 whp, I found that to be ok numbers but my car was pinging like a b**** so we stopped everything real quick. Now I have done a custom FMIC/3" Turboback with Corksport S-Pipe and I am boosting about 8-8.5 pretty steady but I am worried to dyno my car again. Do you think I will be ok or can I do any prep to not get any pinging? I have been told to get some better gas, I usually fill up on convenience store stuff (93 though) because I commute a lot and need to save a little cash but I would be willing to fill up with whatever is needed to make sure my engine doesn't go pop. Any tips would be greatly appreciated, if everything will be straight than I will post up the dyno sheet right after I get it done. Also, should I go back to the Dynojet or should I go to another shop and use a Dynapack? I would assume the Dynojet is ok and that way I could tell what my difference in HP/TQ is more accurately since I wouldn't be switching dyno technologies. Thanks in advance guys/gals!

Mike

 

[Kooldino]

Check your plugs, your gap, and run some seafoam.

Also, like you said, better gas could help.

 

[Drumfreak]

Use BP/Amoco 92, its the best out there IMO. Get one heat range colder plugs. NGK coppers, not sure on the part number but you can find them in a search. I'd worry more if you don't go and dyno the car. You can detect detonation on the dyno a lot easier then on the street. If you still ping with these mods get the DSM AFC. I run the that AFC. At the dyno I ran 9 psi all the way to redline and all three pulls were clean with no signs of pinging at all and my AFR topped out around 11.9

 

[Kooldino]

If he's pinging now, the last thing he needs is an EMS. He needs to find the root of the issue first.

 

[MSPRM]

check your plugs, see what they look like

 

[Jeff@Tri-Point]

Check your plugs, your gap, and run some seafoam.

Also, like you said, better gas could help.

My car pings at stock boost with basic bolt ons.. I find my car running around 13:1+ ratio...

I have my plugs gapped at factory specs which is .44 from what the service manual says. The plugs only have a couple thousand miles on them as well.

Sorry for the thread jack.

 

[Knox Joe]

My car pings at stock boost with basic bolt ons.. I find my car running around 13:1+ ratio...

I have my plugs gapped at factory specs which is .44 from what the service manual says. The plugs only have a couple thousand miles on them as well.

Sorry for the thread jack.

I was running that gap and the car ran like s***.

I changed to a .32-.36 gap and she's soooo smooth now.

 

[Brian MP5T]

What were the conditions vefore the Dyno, Was the car very warm from running, did the operator make several test passes, was there good cooling fans IYO.

 

[msp35]

I was running that gap and the car ran like s***.

I changed to a .32-.36 gap and she's soooo smooth now.

+1

 

[crashkelly]

I was running that gap and the car ran like s***.

I changed to a .32-.36 gap and she's soooo smooth now.

+2!

 

[orng1]

I changed to a .32-.36 gap and she's soooo smooth now.

+3

You should be a lot better with a FMIC, less chance of pining but at least add some octane booster to the tank. Some 100octane would be better but so expensive.

 

[Knox Joe]

+3

You should be a lot better with a FMIC, less chance of pining but at least add some octane booster to the tank. Some 100octane would be better but so expensive.

I'm willing to pay $5 a gal, cause the MSP isn't my DD, but no one around here sells anything over 93 unleaded. I can get 110 leaded all day long, but no high octane unleaded gas around here.

 

[orng1]

Throw a gallon or two of that in when you dyno. It wont be full leaded in case you sill have cats, it will increase your octane and threshold for dotonation. I run C16 from time to time, when I know that I'm going to the track I'll add 2-3 gal.

 

[cbr600rx7]

BP is the best around

 

[JDM Sam]

Mazdaspeed Protege factory spark plug end gaps are .028-.032.

 

[MSP_4_CODY]

put in some ngk bkr7e slus in, there coppers, i did and its purrs like i kittie lol

 

[Maxx Mazda]

Ya, if your car is pinging, you've got a few more bugs to work out...