lowcountry

iTrader: (1)

Is anyone using a Vintage Air Front Runner system with an MSD intake? The water pump interferes with the MSD right below the throttle body flange. I looks too severe to try and clearance the two parts. Probably would need a good 1/4" - what a pita...


thanks.

Double06

On the LS7 C6 Corvettes there is a little issue like you have but the water pump I have looks different. What water pump is that from? I had to file some off but not as much as what you have there. Are you sing a 90 or 102 TB. BTW if you can use a C6 water pump get the 2010 and later pump the hose that you have taped up in photo was moved over to the drivers side for more clearance with issues like you are experiencing.

lowcountry

iTrader: (1)

Thanks for responding. This is a system that Vintage Air designed. They use their own water pump design based off the LS1. I called them and was told their system is designed around the GM intake. I am using a 102 TB.


The problem is, I have to use their pump if I want to use their 'system' because of the spacing and alignment issues. I already have big $ invested in this approach. I need to try and find a solution using these parts first...

slogo

Time to find somebody to whip up some spacers between intake and head.

98CayenneT/A

Don't know if this is much help but figured I would post.
I run the msd also with the Ls1 water pump where I had that top ear and bolt also. I cut that whole ear off including the bolt side

Double06

Well as it relates to the bolt first use a button head it might give you some more clearance on that part of it.

98CayenneT/A

The throttle body will still hit even if he gets the intake to sit right which even with that bolt completely out is a long shot.

Options are to cut the ear off which is the rout I went or to switch to a Ls2 water pump but it has to be for a corvette. They do not have the top bolt ear.

lowcountry

iTrader: (1)

That's the way I'm leaning at the moment. But I was also thinking about tapping a 4-40 screw on either side of the bolt to help maintain the seal.


You didn't do anything special to help seal?

98CayenneT/A

Nope, I just cut that whole top ear off then grinded it down flush a bit.
If you are running a 102 throttle body and need to use that water pump, that ear needs to go.

lowcountry

iTrader: (1)

Well, I lopped it off - not enough. I still need 1/4" in the vertical direction and 5/16" horizontally (towards the engine). Not much room to clearance the intake/TB and taking that much from the pump will surely hit water. This is not fun.


I'm thinking about buying an LS1 pump (which they used as their model) and seeing what changes they made and whether or not I can make it work.


Any particular year/model pump I should look for?


Thanks.

98CayenneT/A

A Ls2 water pump for a corvette.

Che70velle

iTrader: (6)

I went with the PRW 1434620 pump, and I had to grind the top, AND use 3/4 spacers to get it to clear. A NW 102 is huge!

Double06

I was looking at Edlebrock LS Water Pump it may have a lower top portion that what you have. See what you think.

lowcountry

iTrader: (1)

That's funny. I was looking through Summit last night and saw those - came to the same conclusion. I need to measure the hub height on the Vintage Air pump and see how the two compare. It looks like I may even be able to use the same pulley...


Mucho Gracias!

NHRATA01

iTrader: (10)

I did the same but went with the GTO/Fbody pump with the bell pully - I thought researching showed the Vette LS2 pump didn't have the right alignment to work with the Fbody accessory drive? I haven't installed mine yet, still collecting parts.

98CayenneT/A

I'm pretty sure you would need a spacer for the Ls2 corvette water pump but it does not have that top bolt ear that needs cut/ shaved

bbond105

Can't you use a power steering pump pulley tool to move the water pump pulley in or out as needed?

lowcountry

iTrader: (1)

So, I ordered an Edelbrock pump. It looks like it will clear and the block to hub height is only 1/4" shorter than the Vintage pump. I should be able to just shim it and may be able to even use the same pulley...


I will let ya'll know if it works. Some one down the road is sure to run into this same problem.

Double06

I would cut a piece of 3/16 aluminum same size (and holes) as gasket and put a gasket on either side (sandwich it) and maybe get a bolt that is 1/4 inch longer.

lowcountry

iTrader: (1)

Thanks. I wasn't intending to shim the 'pump' itself. I was going to try and make an adapter that pushed the pulley out 1/4". Seems a lot cleaner and less chance for leaks.