GPM

Just curious, what's the guy running the shop / dyno think the problem is?

dennis r

iTrader: (1)

Hes not sure we think it may be the fuel pump he did some test on it befor I got there and it looks like that may be it. I still want to send my carb out and have it looked at I think

GPM

I ran my 2345 weldon when I dynoed mine, the shop pump would not supply enough fuel. You probably need somewhere between 160 and 180 gph.

Young Performance

Then you have a supply issue. It is either the pump is to small, supply hoses are to small, pickup in the tank (which I doubt) filter is to small (again, I doubt it), etc. If the shop has run 1400 hp in the past, then I doubt it is their supply. If I had to bet, I would say it's the pump. Like I told you on the phone, Aeromotive is very generous on their ratings from what I've seen. I have had pumps that are supposed to support almost 1000 hp start to lose pressure on a NA 700 hp engine above 5000 rpm. That's why I pretty much don't use them anymore. Stick with the Weldon's. They are the best out there. They actually under rate their pumps. They will support more than they say they will. You still need to size it correctly, but you at least have a little margin.
Good luck. Let me know if I can help. I know what you are going through. Been there....done that. I would be glad to offer any advice I may have.
Eddie

dennis r

iTrader: (1)

Thank you Eddie you are always a big help I really appreciate your help

CNC

Dennis,
What did you end up with? Pump? Regulator? Final? HP numbers?

dennis r

iTrader: (1)

I went to a weldon 2025 pump and regulator. But I am going back to the dyno april 9 and will do it all over again.

dennis r

iTrader: (1)

Going back to the dyno in the morning.

GPM

Hope all went well.

dennis r

iTrader: (1)

It went very good new pump fixed everything. his printer stopped working so I don't have any thing to put up here yet .He is going to e-mail me the dyno sheets when he gets them.