WALBRO 525 LIMITS

[Chuck Leeper]

Respectfully not disclosing my build, just the capabilities/limits of E85 with Twin 525 pumps. The system is run with a #10 feed.

Your "secret" is pretty safe.
If they can't find the coke perp in the WH, your combo will never be outted!!

 

[TType85]

Someone needs to design a dual pick up Hydramat.....
1.Or make a "kit" to remove part of the stock tank top & baffles, and add a replacement top section with a properly designed baffle system...
2. Build a tank to fit the stock location with the proper internals and good access.
It's only money folks!

Ricks Tanks Tank with a DW X2 fuel pump module (only holds the 340's not the 400's unfortunately). Tank also has corner pick ups. Expensive but cheaper than a new motor. I had an issue with the one of the pumps and while it was being warrantied I had a single 525 with a hydramat in the tank and had no issues below 1/2 tank.

 

[BEATAV8]

View attachment 395472
View attachment 395473
Ricks Tanks Tank with a DW X2 fuel pump module (only holds the 340's not the 400's unfortunately). Tank also has corner pick ups. Expensive but cheaper than a new motor. I had an issue with the one of the pumps and while it was being warrantied I had a single 525 with a hydramat in the tank and had no issues below 1/2 tank.

Those Rick's tanks are beauties. Installed one with twin 525 pumps into a pro touring GN.

 

[Chuck Leeper]

I wasn't aware of that being available....
Nice stuff!

 

[BEATAV8]

I wasn't aware of that being available....
Nice stuff!

The last one I saw was $2900 with the two pumps included. Lol I want it!....

 

[TType85]

The last one I saw was $2900 with the two pumps included. Lol I want it!....

It's a hard sell for most people who see the $150 spectra tank and think that is good enough.

 

[Mr.Spool]

The last one I saw was $2900 with the two pumps included. Lol I want it!....

What a bargain

 

[Mr.Spool]

Back to the single 525 thread

 

[Mr.Spool]

I've seen the same even with a stock tank too, and even the station wagon tank which is a deep & narrow design. When getting close to 1/2 tank the ECUGN will catch the fuel pressure drop and activate the safety shutdown. Doesn't happen when the tank is full.
I set the fuel pressure safety pretty tight, 0.1 seconds.

Good thing you have that computer system upgrade!

 

[3.8 LA LEY]

Got some goodies while I was out on vacay Christmas came a little early.

Now I just need some of Eric's 120lb injectors and a saucy ol' tune to hit the streets.

 

[3.8 LA LEY]

Got some goodies while I was out on vacay Christmas came a little early.

Now I just need some of Eric's 120lb injectors and a saucy ol' tune to hit the streets.

 

[ttypewhite]

Got some goodies while I was out on vacay Christmas came a little early.

Now I just need some of Eric's 120lb injectors and a saucy ol' tune to hit the streets.

Here's a overview and install video to aide in your install.

 

[gnmaster2004]

9.87 @ 134 single 525 pump

 

[TType85]

9.87 @ 134 single 525 pump

What fuel were you using? Did you use any volt/pump booster?

 

[gnmaster2004]

E-85 no volt booster

 

[3.8 LA LEY]

9.87 @ 134 single 525 pump

very impressive but I know myself... down the road if i want to upgrade to a 6466 and make some more steam I'd rather have the dual 340's and I'll already have it done.

are you on stock compression? 9.87 with those mods is MOVING

 

[gnmaster2004]

compression is 9-1

 

[3.8 LA LEY]

3700LBS running 9.87 trapping 134mph is around 720-760 crank hp on 1/4 hp estimator..

that means this turbo is good for 620-640whp with this setup how it is.

I was told 6266 all in with decent heads and a small roller cam would be maxed out completely at 560-580whp.

I have seen some of Bisons older posts with what he did with a 62 and it was around upper 590's as well I believe

 

[gnmaster2004]

I haven’t updated my build profile. I run a 6766 turbo and GN-1 unported aluminum heads

 

[3.8 LA LEY]

I haven’t updated my build profile. I run a 6766 turbo and GN-1 unported aluminum heads

ok that makes way more sense