psychobillycaddy

iTrader: (4)

Can someone tell me if this is what the stock V1 pickup assembly looks like?

http://www.ebay.com/itm/CADILLAC-CTS...item27beebe29a

vmapper

iTrader: (8)

Looks like it.
Comes out of the passenger side top of tank.

psychobillycaddy

iTrader: (4)

So I am guessing that means there is no simple drop in fuel bucket upgrade like the V2 or the 8.1 the GTO guys are using?

Im worried that an upgraded pump or BAP is going to cause cavitation because the volume of that bucket is not much.

Im putting in an LS3 with a TVS2300 at 8lbs of boost and a custom boost cam. Were guessing between 550-600 HP which will be about 700 at the crank.

1BADCTS

iTrader: (17)

There are a few guys on here putting down power in the 600 range. They should chime in pretty soon with their fuel setup.

vmapper

iTrader: (8)

GSS342 drops right in the bucket. (identical size)
Go with two, some plumbing, hotwire kit and you would have no problem sustaining 600rwhp.
I would highly recommend to change over to a return and add a FPR on the rails... The pressure varies when your using the regulator in tank...
Several guys with WS6's and such have the same issue.

12-916 Is Holley equivalent

You can also use A Denso 19513-1270 - BUT realize these draw DOUBLE the current.

You can also go with Kyosan 895091-0810 which is a modified Denso (toyota pn 23221-46110 equivalent) Also runs double the current - quiet and is larger so modification of the bucket is a MUST. also flows a hell of a lot 390lph @14V @ 43 psi. hotwire is a must.

I would run a cheaper walbro w hotwire / twin if you think its needed, they are still quiet enough, no bucket modification and run at 65psi - boost referenced... you will not have any issues.

You could still run the BAP on a pressure hobbs switch... but I doubt it would be needed.

Aeromotive 340 is another option... I dont know much about them though... size / current draw etc.

psychobillycaddy

iTrader: (4)

I ordered the racetronix kit and have looked at the pumps. I didnt know the GSS was an idenitcal fit. I will probably go with that one.

My concern though is that small reservoir (sump) that the pump is in. When using the extra fuel required at WOT, how does that thing not empty and overheat the pump or even worse cavitate?

GulfM3

iTrader: (14)

I have a spare sump setup in my shop, I can get you some better pictures if you want. To answer your question, and it's been a while since I looked at the sump, I believe there is a "flapper" door that allows fuel into the sump but not out of the sump. The return line will keep the sump full and even slightly pressurized under most conditions. If you get to a point where the return stops providing pressure on the sump, fuel will flow from the tank into the sump through the "flapper" valve.

I'll try and take some pictures today.

GulfM3

iTrader: (14)

Also, I'm running a Magnavolt, stock pump, rails and 60lb at ~575 hp to the tires. Any more boost and it started leaning out.

psychobillycaddy

iTrader: (4)

OK cool thanks, That is what I was wanting to know. I should be able to upgrade the pump with a BAP at the minimum to meet my needs.

If I go with anything more Ill do a return setup (w) external pump, etc. etc. I just didnt think it was necessary for my goals.

raven154

iTrader: (14)

Bump for fuel pump info. What did you end up going with?

TexVette

iTrader: (2)

In the process of running a magnafuel 4301 setup. Just pulled out the sock stuff and capped everything. Sumping the stock tank on both sides towards the rear.

For 700 horses though, the stock lines might support it. Will be getting close.

raven154

iTrader: (14)

Please keep us posted and take lots of pics!!!

psychobillycaddy

iTrader: (4)

I ended up going with the DeatschWerks DW301 pump. I sent it in to be flow tested in our stock assembly.

I am attaching the results of their pump in our assembly vs the stock pump. As you can see in the results the stock assembly is very restrictive as this pump flows 300lph at 56psi unrestricted