TurboSE

So I'm probably better off to run 3 044s? Does Bosch make a low pressure 044-type (lph, etc) pump? I don't know too much about fuels systems...but common sense tells me that: if all pumps are equal, 1 feeding 2 will eventually starve the 2...like 1 garden hose filling a bucket and 2 draining it. Please correct me if I'm wrong, I've searched for the basics of fuel systems and haven't found answers to the simple things... Once again, thanks for all your help!

That PDF is great! Thanks! I'm planning on running twin Bosch 044's after the surge tank, what type of inline should I run between the cell and the tank? Does it matter if it's high pressure? I was thinking either another 044 or a Walbro 255.

ok...so I need a surge tank, got it. So how's this look? 5 gal cell > 100mic. filter > Walbro 255L lp > surge tank > Bosch 044 x2 > 10mic. filter > fuel rail How big should my surge tank be? Is 1L enough? Will 1 Walbro 255 feed enough gas to the surge tank to supply the dual Bosch's? Is it ok for a surge tank to just be an empty box or does it need some sort of baffling?

For some reason, this post conjures images of an event in the World's Strongest Man competition...the RB Toss!

wow, a lot of great info there too...you guys are great. What's everyone else's opinion on feeding the rail from both ends? I have a Greddy rail and it has a hole in the top (I assume for this purpose). Also, they seem to really like the Bosch 044. Lastly, the last line "If you don’t have a tank with a drag-sump style outlet, you will need a surge tank." This is my fuel cell below, I assume that's what they mean by a "drag style" sump.

what's a good size for a surge tank?

You're a swell guy, remind me to put you on my Xmas card list! You wouldn't want the turbo, it's a T88...Greddy junk!

We actually hoisted my motor by a seatbelt when I bought it, but I don't trust my knot tying ability...

haha...I could just ship it to you and you could figure out how to get it off the stand!!! Thanks for all the help guys!

I think this is the method I finally decided on

I was thinking, nylon rope or ratchet straps...I just wasn't sure the pan would take the weight. Mine sags just like that on my stand, I'm always worried I'll find it on the floor of my garage.

lift an Rb26 short block off an engine stand? Sounds simple enough right? I have an Rb26 short block ready to go to the machine shop, hanging on an engine stand. It sagged a lot on the stand (not the Nissan-style side mount, but the Harbor Freight 2000lb'er), and I'm just not sure how to pick it up with the hoist and not damage the oil pan or the head gasket surface.

Thanks, that's really all I needed to know! I'm gonna mount mine level with the fittings on the sump. Mostly on the street. As long as they're reliable on the street, I should be set. No controller...cha-ching$$ Thanks so much, awesome car BTW! PS - Walbro vs. Bosch...both flow the same according to tests, any reason I should pick one or the other? once again HybridZ, you guys are the greatest!

More questions....are your Walbros below the sump (as I've been told they should be)? Have you had any issues with air in the fuel (does your cell have a foam insert)? Do you use any type of controller? What type of HP are you making? Is your Z a street car? Any answers/help would be awesome!

Nice set-up...that's the kind of set-up I want to run. One question, would it be better to have the filter before the pumps?

my cell is bottom sumped with a foam insert, so would I still need the surge tank...I'd like to avoid running 3 pumps if possible

I don't know much about surge tanks....I plan on mounting my pump(s) below the fuel cell, so would I still need one? Would the set-up go something like this? cell > surge tank > pump(s)

From what I've read on the Bosch pumps, I was figuring I would have to run 2. Would I just wire them on two seperate lines in paralel or both inline? I am already rewiring my whole chassis, and I'm at the point I need to start thinking about wiring pumps/controllers. Would I need two controlers for dual pumps? Thanks for the NISMO tip...I was looking at Sard's, but I've heard other places they're more for top-end. I'll check on NISMO's offerings. Same with the fuel rail and regulator... Thanks for the great tips and all the help!

1cc/1hp is a good rule to remember. As for the Bosch 044, I've done a little research on them, from what I've read...they don't flow as much as the A1000, can anybody give some specifics (a place to search) on the Bosch 044 as an external pump? Also, the noise isn't a huge issue.

I'm starting to plan my fuel system for my RB26 project. What I have so far is a rear sump 5gal. vented fuel cell (with foam, -10AN out/-8AN ret). I also have a Greddy fuel rail. The car will mainly be a street car but will see some light strip time. I'm looking to feed between 500-600whp (with room to grow later, if I ever feel that isn't enough). My original plan was to just go with Aeromotive's whole A1000 catalog. Cell > 100mic. filter > A1000 pump w/A1000 controller > 10mic. filter > Greddy rail > A1000 FI bypass regulator. I will not be reusing the stock fuel lines, instead running braided -10AN from the cell and -8AN return. My questions are: What size injectors would you recommend? Is there a more reliable set-up? Money's not really a concern, I have nothing but time. I'm running a PFC for tuning if that makes any difference in injector selection.

maybe I'll slap an RB into my Durango when she gives up the ghost...this looks like a very cool project...

Mods, I guess this can be closed....thanks for the help!

also a good answer...I really appreciate all the help!

Thank you for your answer, I've been chewing on this question all day. So for 700-750whp is a Cometic good enough, or would you go higher end? PS - That answer makes more sense than any of the others I've received...

I've asked this question on a few RB forums and always received mixed responses and reasons. I'm in the process of rebuilding my block and I've looked at several head gasket manufacturers, and the big names (Tomei, Cosworth etc.) don't seem to make a gasket in any size smaller than 87mm. I haven't pulled my internals yet, but the rest of the motor has been in excellent shape so I don't think I'll have to bore all the way up to 87mm. My questions: If I'm running 86/86.5mm pistons and and use an 87mm head gasket, will I run into any problems? Also, what is everyones opinion on Cometic head gaskets?