IDI project questions

[seawalkersee]

The belt will probably be fine, but I would run a pair of V's. The reason I say it will probably be fine is because of the boost at engine speed. Prior to me getting my PS turbo, I was going to do a blower and thought came up with the specs for the M90 blower I was going to use. At Max RPM, the 3.8 engine was like 20 cfms less than the 6.9 at max RPM.

SWS

 

[88 Ford]

you put a single v belt on there???

That bypass, just wire it closed. thats fords way of bypassing boost to reduce load under part throttle conditions.

Just fyi if you have a single v belt unless its cogged. I run a M112 with a intercooled kit on my 5.4 crown victoria. I blow belts off the blower and you can see the belt dust trail coming off the back side.

I figured and I will wire it shut then. In your opinion what would be the best way to do that?

Also why do you think the belts blow off? And how often does it happen?

 

[88 Ford]

The belt will probably be fine, but I would run a pair of V's. The reason I say it will probably be fine is because of the boost at engine speed. Prior to me getting my PS turbo, I was going to do a blower and thought came up with the specs for the M90 blower I was going to use. At Max RPM, the 3.8 engine was like 20 cfms less than the 6.9 at max RPM.

SWS

I'm kinda confused on the double v belt thing. Could you explain in depth? Also have you finished your Powerstroke turbo project? Also what size of pulley were you gonna use in your supercharger setup? I know mine is bigger but I'm just curious. Lol

 

[seawalkersee]

Two pullies or machine one of the alt pullies to fit. It was a thought since anymore than 8 psi will start to really put a strain on the pully. I had a factory pully on it. I JUST got the stuff for the PS turbo this weekend. I am still waiting on the rebuild kit for the turbo.

SWS

 

[Goose_ss4]

it is too bad that you can't run a water to air intercooler like on the old detroits. sat underneath the blower, and fed into they intake. then just plumbed the turbo straight into supercharger. I also have seen them on marine aplications where they have another water/air between the turbo and blower with a wastegate.

 

[Goose_ss4]

also another bummer is that you can make it gear driven. like off the injection pump gear would be nice, but you would need to fab your own cover and mount. then you would not need to worry about belts and pullies.

 

[88 Ford]

Two pullies or machine one of the alt pullies to fit. It was a thought since anymore than 8 psi will start to really put a strain on the pully. I had a factory pully on it. I JUST got the stuff for the PS turbo this weekend. I am still waiting on the rebuild kit for the turbo.

SWS

My plan was to make a pulley tensioner setup to keep the belt tight. You think that will keep it from skipping? Is that what you meant about 2 pulleys or did you mean to piggyback 2 pulleys?

Also, to hijack my own thread lol, explain your stroker turbo setup?

 

[88 Ford]

Goose both your ideas a really cool, but yeah that would be a ton of work for sure. I do have a huge air-to-air intercooler though and it actually works really well.

 

[seawalkersee]

Two pullies or two belts like on the alt. V-belts are prone to slipping anyway you look at it. If you look at the old hot rods that have that setup, they have 2,3,4 belts sometimes. The further you wrap the belt around it, the better and more surface area/contat you will have.

My turbo setup is going to be in about the factory place. I am actually going to get it ready for the mock up today. I have the PS exhaust from the manifolds through the down pipe. If they fit, and I can run them in the same spot without too much hassel and money to make oil lines, I will be good to go. I have the IC pipes and an aftermarket IC here at the house...Essentually, if I had a PS engine and computer, I could turbo it...

SWS

 

[88 Ford]

Two pullies or two belts like on the alt. V-belts are prone to slipping anyway you look at it. If you look at the old hot rods that have that setup, they have 2,3,4 belts sometimes. The further you wrap the belt around it, the better and more surface area/contat you will have.

My turbo setup is going to be in about the factory place. I am actually going to get it ready for the mock up today. I have the PS exhaust from the manifolds through the down pipe. If they fit, and I can run them in the same spot without too much hassel and money to make oil lines, I will be good to go. I have the IC pipes and an aftermarket IC here at the house...Essentually, if I had a PS engine and computer, I could turbo it...

SWS

Ok I understand a little better now. I guess it'll just take some experimantation to get it right. Lol

Your turbo setup sounds like it might work. I just wonder if its gonna clear the top of the engine. Also are you going to put new exhaust manifold mount to fit an idi cus a Powerstroke manifold doesn't fit right?

 

[Diesel_brad]

I would convert your supercharger pulley to a serpentine. ALOT more surface are to prevent slipping

 

[88 Ford]

I would convert your supercharger pulley to a serpentine. ALOT more surface are to prevent slipping

I would have to change all my pulleys to do the correct? Or would I have to change everything like the water pump and the alternators themselves? I guess what do this kind of job entail?

 

[seawalkersee]

AFAIK the exhaust is the same. They look the same, but smaller ports. I will have to check tomorrow for that and will post back.

Also, I was thinking about this tonight and thought you may not want to close the bypass valve all the way. Reason being, if you have cold days, and a mitsu starter, the blower pumping pressure MAY be just enough pressure to keep it from starting. Like this, if you are at 2psi at idle (thats pretty good), it will be trying to force that in the cyl when it starts when it should be bypassing it. Is it an auto or stick? If it has a TPS, then you can use that to activate a selonoid to close it off idle and open at idle. This may allow you to have an instant 4-5psi off idle which would be what you are looking for.

SWS

 

[88 Ford]

I have a ZF5 tranny. The TPS is a throttle position switch correct? What trucks have a TPS? Sorry if that's a dumb question. . Also, I probably could find the original solenoid if need be.

 

[Fordsandguns]

The e4od trucks have a "tps". It's called something like FIPL or something like that.