blitz_81

my injector pump is leaking oil on my truck and am looking into just buying another one. i found a 180 pump for pretty cheap and was wondering what i would have to do to it to get it back to a 215 pump or any mods that i could do to it. thanks for the help.

plow

were is it leaking at?

Forrest Nearing

it's not just a calibration thing, there are considerable internal differences between a 180 and a 215

gunracer1

the more i learn, i am starting to figure that the only real differance is in the helix cut in the plungers. but i have not pulled one apart so i can't say for sure.

blitz_81

the pump is leaking oil out of the injector pump timming plug. the threads in the pump were striped out. i put some jb weld around the plug and have pretty much stopped the leak but would like to fix it right. another question is where would i purchase some lazer cut or high flow dv's?

Forrest Nearing

I've heard lots of talk about a timing curve? any truth to that?

Cowhand

I've heard different cam, barrels and plungers.

12valve

Ive FELT the difference!!!

12valve

I PMed you!

gunracer1

as i understand it, the helix cut in the plungers of the 215 do act as a timing advance at part throttle. but work at retarding the timing at full travel. and that 215 pumps work best at 17mm of rack travel. and pumps with out the helix can go on up to 21MM of rack travel. so i really need to play with some pumps i have here at the house. god i have to get the shop done.

Forrest Nearing

I thought 215's were good at 21mm too or is the duration so much that EGT's negate power gains?

12valve

How do you guys measure rack travel??

Forrest Nearing

if it's off the truck, venier calipers work well

wana12v

at 21mm it will make a ton of fuel(600+cc's) but due to the helix it retards fuel timing. 17mm will make 450 cc's wich is plenty for big hp 500+ im not sure how a 180 acts. however the cam in a 215 is great and put in a 160 pump you have a race pump on the cheap

Forrest Nearing

what about 600+? could I stick a 215 cam in a 180 pump and get the same effect?

thanks,

Forrest