Have a 1988 TPI 350 in a 77 FJ40. Anyone know of someone that has successfully completed a similar install? Would like to get some ideas on fuel delivery and misc info. Thanks, Keith

Ahhh, Newbie... See the upper right hand corner, where it says "S-E-A-R-C-H"??? Give it a whirl...

Also, at the top of the page, where it says "Before asking any tech questions"?? Try that one, too!

:flipoff2: :shaking: Fawkin Newbies

He Keith,
Where you at in the state? I am now doing the fuel supply an my TBI conversion, so we are probably pondering the same stuff. I live in North Bend. What did your TPI come off of (Vette, Camaro?)
Information:
I have a canister style fuel filter that filters the big chunks before they get to the high pressure pump. Then after the pump I have it go the the Chev truck fuel filter (cut the o-ring tube ends out of a Citation in the local boneyard). I bought 3/8 steel tubing for the supply and 5/16 for the return lines. I bent them to fit to the body (trans cover) and they feed at the rear of the engine (where the TBI fittings are).

I am also going to build (eventually) a reservoir for the fuel to draw from so the cruiser won't starve for fuel at angles or hard turns if the tank is low on gas. Here is the link to the idea for the TPI fuel system with a "surge tank" :
http://www.sdsefi.com/techsurge.htm

This guy has lots of info on his site:
http://www.customefis.com/

Have to get mine finished, cause I start a new job in 2 weeks.

:usa:

Got my '76 FJ40 running with the 1991 305 TPI a few months ago. NV4500 behind it and a split case from a 1987 FJ60 too.

built a surge tank for the fuel out of a 1978 Charcoal canister. Cheap electirc pump moves fuel to it, through a inline filter(Cheal Fram) then to the reservoir then to the HP pump and through an EFI filter....

Works without a hitch... Nearly 1.5 quart capacity reservoir will be enough for a lot of of camber shit. Simple to build if you can wield a propane torch and braze with homedepot stuff. I built mine in an afternoon.

electric fuel pump for the low pressure is a cheap TRW soleniod thingcommmon to most auto parts stores.
HP pump is a 80's datusn 280Z pump from under the left rear wheel. Theyare all of $20 at the pick your part so spares are CHEAP and I can get 9 of them before Iam out the cost of one new aftermarket pump.

Your motor will be a MAF type I think. I did not have to deal with that (1991-MAP motor) so no help there...

Let me know if you have anymore Q's...
-Brett

I have a Mallory 60FI pump. I found that when I had an inline fuel filter in the inlet (suction) of the pump, only about 3/8" on the inlet side of the filter would fill. Motor runs ok, but doesn't seem to have to top end I was expecting for 4-10 gears and 32"s. I have found that the filter MUST be in the discharge side of the pump. But then again, the ole girl is pretty fat (heavy). Thanks for the input, I live in the Puyallup area. My email is MeanDanish@aol.com or keith.envolsen@York.com if you would like to chat about the TBI, although much different in pressure requirements.

The only diff should be the pressures. They both need supply line, return line, and injection filter. The extra filter I use on the suction side is a low restriction cartrige type (cartrige inside a screw-on steel housing). It is used to pull any big chunks out before going through the high pressure pump. I put it on years ago to keep rust from my aux tank away from the carb. Now the aux tank is way too bad to use any more....had to change filter each tank of gas or more often. It would have sediment 1/2" deep in the housing, and the filter totally plugged.

The "injection" filter you are talking about, are you referencing the type of filter that uses the GM "O-ring" double flare stye fittings (Female both ends)? I was thinking of using a NAPA cartriage style, to get around the oring fittings, this way I can adapt from 3/8" pipe thread to 3/8" SAE flare which is a lot more common. Do you see a problem with this, or is it wise to use a quote on quote "injection" filter. The motor is out of an IROC Z from 1988. I am using the stock Toy. return line, and stock (5/16"?) supply to the engine compart. Not sure if this is really bad or not.

The injection filter is the oring style OEM filter. The cartrige style is shown in the back of the NAPA catalog. The early caddy seville used this cartrige style filter, but it does not filter as fine as a fuel injection filter. I only have 2 injectors to protect, you have 8. I would use an injection filter with hose type connections on the high pressure side, rather than the cartrige one. Several foreign cars used these, heck there's one on my wifes 88 cherokee (5/16 line).

I chose the OEM filter because I have less to remember when I go to the parts store.:rolleyes:

OK! I changed my mind on the filter. I found a filter that has 3/8" nipple for hose on one end and 3/8" inverted flare (for steel tubing or add another hose fitting) on the other. The inverted flare screws right on the end of my 3/8" steel supply line (brake line at the parts store) that goes up to my TBI.

Fram # G3693 NAPA # 3094
Flow goes in hose fitting/out inverted flare fitting

Fram # G3692 / NAPA # 3093 is the same configuration but flows the opposite direction

You can also buy a fitting to go into the inverted flare end to connect to whatever size hose you are using (if you don't connect to tubing).

Think I have the setup now. Spoke with quite a few people. All say that the FI pumps are made to push, not pull. I am going by the directions as well now. Going to mount the Mallory pump under the body, basically near the under seat tank. Next, and the discharge of the pump, going to run the inverted flare o-ring style connection to a efi filter (as recommended by you). Out of the EFI (inv. flare) to the supple connection of fuel rail. Return will use factory 5/16" line. If this works, will update.