can I run a 2002 ho pump on my 2001 5spd non ho motor??? I got 1 for free and motor is basically stock

 

yes

 

I have herd yes and no. do I have to do any mods?

 

From what I have heard, a SO pump can make more power without consequences compared to a HO.

 

I've heard they can be a little doggy without a chip. The HO has the ability to run slightly higher injection pressure with a slightly more aggressive ramp rate on the cam at the expense of smaller plungers.

You'll reach the hp limit of the Ho pump sooner than the SO pump. However, you might be able to pull your injectors and have them set to a slightly higher pressure for a small increase in mileage and power. It would be pretty small though.

Ho motors also have higher compression than the SO motors which accounts for the 10 more HP.


So no you don't have to do any mods but I don't see you gaining much from the swap. You could keep it around as a spare and use it in an emergency if you wanted.

 

Thanks Kazarl that actually is the plan my vp is going bad so my buddy gave me this ho pump so I just wanna replace not really looking for the hp as much as just not wanting to spend $1200 on a new vp44

 

Like you I've heard people say they are just fine and some people say they don't. All i know is the computers doesn't seem to care which pump it is operating.