[YellowSub1962]

<font color="yellow">I'm just about fininshed with my TPI 383 (again). This time I'm putting it together myself, since I can't find a shop to do right and can't afford to have someone do it again.

My question is this. What oil pumps are you guys running and why? I've heard/read that a stock oil pump is fine for volume and pressure up to 6500 RPM. This is a low end motor, it will come apart long before that (5500) and the computer has a built in rev limiter (5200). Also, what is the HP lost to a HV pump vs. a standard pump, I've heard as much as 12HP and as low as 2. I don't care about the 2HP but 12 ponies getting away from me might make the decision easier... I always run high volume/pressure pumps, but is it actually needed and worth the extra cost, and does it out weigh the HP loss??</font c>

 

[Shaker]

<IMG SRC="smilies/laughing.gif" border="0"> <IMG SRC="smilies/rolleyes.gif" border="0"> You have got to be joking right!!! A 383 has 400 HP/400 Torque minimum and you are <IMG SRC="smilies/crybaby2.gif" border="0"> about 2-12 HP. <IMG SRC="smilies/eek.gif" border="0"> <IMG SRC="smilies/laughing.gif" border="0"> Run an electric fan and get the 20HP back so you can get your HP back. ROFLMAO.....I'm running a HV on my 383 and I'm not sweating 2-12Hp cause I'm getting over 425 without Nitrous......

 

[1BDYJ]

I've always used a stock Melling oil pump with the hardened drive shaft.

 

[YellowSub1962]

<font color="yellow">actually, my concerns were two fold- do I need to spend the money (I don't have it right now) and do the benefits of getting the HV pump outweigh the loss of HP. I guess it was pretty poorly worded...Thanks for the input.

I also posted this in the Gen 4x4 section, and got a few different viewpoints. I was not aware that a HP pump has the possibility of causing the bearings to spin on a "tight" motor.

I think I'm gonna get a stock pump and run it with the ARP shaft I already have. </font c>

 

[spoolnaround]

Peter, the stock pump will be just fine.
~Craig