Originally Posted by JAMMINKRAZY

The 007 is not the same as the JP-1. Not sure who told you that, but they are far from the same. They are both low end/torque pipes but not the same. I don't know much about the OD engines, but a 7mm should be a good starting place for a venturi.

Originally Posted by PsycoB4

thats what it has in it now, and comes with an 8. Just dont knwo what i can do to get more out of her without ruining the life.. the person who sold me the pipe said they are the same pipe just get more milage from the dynamite. If you say they are different, how are they?

Originally Posted by houston

guaranteed they are not the same internals , the 007ht (high torque) is best suited for truggy on small tracks

i will tell you not to expect too much out of the 3 port sport engine

the odonnell engine is a pretty decent little taiwan engine fershur

Originally Posted by dreaux

i know some engines tune different, but i can tell you for a fact anything more then 2 turns out on a jx is too lean. I don't care what the humidity or altitude is. 2 turns out MAYBE. but that is still too lean. Mine stays around 2 1/4 most of the time give or take an hour. All my o.s. engines do

the jx runs colder then the vspec. I had the same problem for a long time until i realized it was not a problem. One of the best drivers in my area runs nothing but jx's and he temps about 175 after a main. I think it has something to do with that oversized block or lightened cooling head. I would always try to lean it out to get it hotter, DONT! You will ruin your engine.

If anything go in on your LSN but anything more then 3 1/8 is getting too lean.

Originally Posted by Jaz240

Your entire tune will start and end with your idle gap. If your gap is set wrong you will always be too rich or too lean trying to get your engine to run right. Set your gap correctly and then tune from there. After you get it make minor adjustments to your idle to bring it all together. Too many people tune the low end to compensate for a bad idle setting. Never more than 1 mm idle gap is a good starting point for a fully broken in engine and make sure it does not close at full brake

Originally Posted by houston

guaranteed they are not the same internals , the 007ht (high torque) is best suited for truggy on small tracks

i will tell you not to expect too much out of the 3 port sport engine

the odonnell engine is a pretty decent little taiwan engine fershur