eirk66

I have a Jammin .28 turbo motor

I'm having problems with keeping it cool .. I run O'donel 20% with the turbo plug .12 that ofna offers its a hot plug I don't think they have any others ... anybody have any suggestions?

weather about 70-85

BANKRUPTER

Use a cold plug for one. Hows the air flow to the motor? Can it be increased?

eirk66

there are no cold plugs for my motor... only taper ive been told that fits is the ofna .12 hot turbo plug I havent seen a medium or cold

eirk66

unless this will fit ??
http://nitrohouse.com/images/50000-59999/51004.jpg

eirk66

any one?

supertib

what tuned pipe ?

and most likely its tuning related.... can you give me more details ?

as well the plug your using is fine...

125cchyperman

A hot plug should be fine, but try and cut a hole in the windshield if there already isnt one. Also you could have an air leak depending on how hot it really gets. Where are the temps at when you say you have a hard time keeping it cool. BUt a .12 plug is the same thing as a .15 or a .18 plug. They use the same plug for those engine sizes, so a cooler plug might work if your getting pre-detonation. But if your not then that hot plug will do just fine. I use hot plugs with 20% O'Donell all the time, it's not a big deal.

Also try richening it up a little, you may just be running lean. Run it with the body off and see if you still get the same temps, and if so then richen it up. If the temps still dont go down then you might have an air leak.

supertib

what brand of temp gun are you using ??? most temp guns are way out of calibration...Duratrax being the worst offender

eirk66

ive sealed the engine up and I do have a hole in the windshield and i got it runnin pretty rich at track with body on ran about 270-280


also ordered a cold and medium plug ill try the medium first the guy at my lhs told me to try the side winder fuel instead of O'donel.. says should keep it down about 10 degrese?

supertib

plug temp and fuel are not your problem..... I run OD fuel and the exact same plug your running !......your either tuned poor or your temp gun is reading wrong.....

125cchyperman

I never had any problems with O'Donell running hot. Infact the temp difference between the two fuels for me wasnt a huge difference at all. Not even 10 degree's.

eirk66

its a duratrax one.. the blue one about 25 bucks its some what older but replaced battery not to long ago

cold_reboot

My Feedback: (20)

If you have access to a different thermo I'd try another one. As someone said above, some of the Duratrax thermo's are pretty bad about being off.

eirk66

i borrowed a good temp gun that my buddy uses as a electrician and I ended up buying one today it was the dura TRASH temp gun

thanks guys

supertib

I have seen people ruin their motors based off the information from a way out of calibration gun......... How far out was your Duratrash ?

Also we have found pretty much every brand will go out of calibration at some point or another.

SAVAGEJIM

Supertib has a point. The hobby grade temp guns are really cheap chinese POS's with very inflated prices. The best temp guns to use ar those automotive grade and HVAC grade. Thoe come with a laser pointer to you can be sure that you are aiming at the hotteset part of the plug, and better yet, I have yet to see one of these industry grade temp gus go out of calibration (if that is even posible).

The drawbacks to these industrial grade temp guns i that they are expnsive, at least $100 or so. Also, dont expect to get an accurte reading while standing up and pointing at the plug 3ft down. you will still have to hold is close to the engine when taking the reading.

kweezinarts

atleast the duratrax has the self calibration, i use it on 77 for anodized aluminum. comes set at 100... goes from 1-100 so that could make a HUGE difference in temp...