a different vspec issue...
#1
a different vspec issue...
so i had about 6 gallons on my vspec and the pin that holds the rod broke on the crank. luckily no other internal damage occured. I ended up finding a new crank from a ninja and throwing that in. got to the track and immediately noticed i had to richen things up quite a bit, the motor was idling at like 230 and ever sinse i have had one heck of a time tuning a decent idle on this thing- i have NEVER had this much of a problem before putting this crank in the motor. ive done everything, new bearings, o rings, motor has plenty of compression, it doesnt matter.
has anyone else had this crank in a vspec... ?
has anyone else had this crank in a vspec... ?
#2
I believe the Ninja crank is the .28 from OS
so it may be to big for the components?
so it may be to big for the components?
#3
Tech Master
iTrader: (4)
close but not the same, also, if you put the JX crank in to the v spec, all that pretty coating may wear faster, it was designed for the speed and JX rod which have the lube hole in the back of the rod, the v spec rod gets it's lube through the crank of the v spec, check your rod and crank.
#4
i dont have much run time sinse the swap due to fustration, i would only say a total of an inermittant 5 tanks or so. internally everything still looks good, just cant get a consistent idle. so there is a possibility my problems could be from the crank?
now im stuck... spend more money on this dam motor or just get a plus 4?
now im stuck... spend more money on this dam motor or just get a plus 4?
#5
Tech Master
If you didn't put in the Ninja or SPEED rod there lies your problem.
The stock V-spec rod doesn't have an oiling hole like the ninja or speed rod do. You need that oiling hole if you run the ninja or speed crank.
Your motor is running hot because, most likely than not, you don't have any lube getting between you rod and crank pin.
The stock V-spec rod doesn't have an oiling hole like the ninja or speed rod do. You need that oiling hole if you run the ninja or speed crank.
Your motor is running hot because, most likely than not, you don't have any lube getting between you rod and crank pin.
#6
I just thought I'd say if you go ahead and get a Plus 4 you'll be one happy camper
Awesome engine.
Cheers
Awesome engine.
Cheers
#7
I put a ninja rod, piston, sleeve, and wrist pin into my v-spec. I had to richen things up because of the 5 port but other wise it runs like a champ.
#8
Tech Elite
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so i had about 6 gallons on my vspec and the pin that holds the rod broke on the crank. luckily no other internal damage occured. I ended up finding a new crank from a ninja and throwing that in. got to the track and immediately noticed i had to richen things up quite a bit, the motor was idling at like 230 and ever sinse i have had one heck of a time tuning a decent idle on this thing- i have NEVER had this much of a problem before putting this crank in the motor. ive done everything, new bearings, o rings, motor has plenty of compression, it doesnt matter.
has anyone else had this crank in a vspec... ?
has anyone else had this crank in a vspec... ?
The hollow part of the crank is where your air and fuel mixture pass through- this is probably shaped different so it flows different. A retune would almost certainly be needed.
Also, as mentioned... you need either the Ninja rod or the Speed rod due to the difference in the way they are oiled. VSPEC rod with no oiling hole + Ninja crank with no oiling hole = no lubrication to the rod bushing on the lower end.
Someone said that's the .28 crank... I don't think it is the same, but might be. It is very similar to the Speed crank, but without the counterweights.
There is no reason your combination shouldn't work just fine as long as you use a rod that is appropriate for that crank.
#13
wierd... my rod does have the oil hole for the crank pin. i originally bought the motor used and im almost sure the previous owner changed the piston/sleeve assembly... maybe they put the speed rod in there at the same time.
gonna take it back to the track tomarrow and see what happens...
gonna take it back to the track tomarrow and see what happens...
#14
Tech Elite
iTrader: (25)
wierd... my rod does have the oil hole for the crank pin. i originally bought the motor used and im almost sure the previous owner changed the piston/sleeve assembly... maybe they put the speed rod in there at the same time.
gonna take it back to the track tomarrow and see what happens...
gonna take it back to the track tomarrow and see what happens...
I will be at ARC tomorrow night. I'd be happy to take a look at your engine and help you tune it.
Jimmy Wright