1-4 lbs of boost on banks turbo

[Chrismohan]

I just installed a used banks sidewinder turbo on my 89 f350 7.3. Im only getting1-4 lbs of boost. I installed the same setup on my 86 with a 6.9 and its night and day. Probably getting 13 lbs of boost on the 6.9. I have no muffler just a straight pipe to the front of the rear wheel. Is that too much restriction. Should i make it shorter. Does the fuel need to be turned up. Its the same system, whats wrong

 

[Macrobb]

I just installed a used banks sidewinder turbo on my 89 f350 7.3. Im only getting1-4 lbs of boost. I installed the same setup on my 86 with a 6.9 and its night and day. Probably getting 13 lbs of boost on the 6.9. I have no muffler just a straight pipe to the front of the rear wheel. Is that too much restriction. Should i make it shorter. Does the fuel need to be turned up. Its the same system, whats wrong

Hm... Deja vu here... I'm pretty sure I saw this exact same post over on Fte about 5 minutes ago...

My response:
Fuel is needed. Exhaust won't matter enough to worry about; even with a stock muffler and full 2.25" exhaust it should spool fine.

And the question about how much to turn it up:

As far as you can. The turbo will handle more fuel(when spooled up) than a stock IP can provide, by about 50 RWHP.

 

[79jasper]

No need for two threads.

Sent from my SAMSUNG-SM-G890A using Tapatalk

 

[Sidewinded_idi]

Idk what happened to my response but I have the latest generation sidewinder kit and my ip is turned all the way up and still needs way more fuel. I only get a tiny bit of smoke when I gun it then it's gone but when my wastegate was hooked up it was hard to build boost and topped out around 6psi, I disconnected the wastegate and now it tops out at 13 and builds it quickly, I do have full 3 in straight pipe though

 

[Chrismohan]

Hm... Deja vu here... I'm pretty sure I saw this exact same post over on Fte about 5 minutes ago...

My response:
Fuel is needed. Exhaust won't matter enough to worry about; even with a stock muffler and full 2.25" exhaust it should spool fine.

And the question about how much to turn it up:

As far as you can. The turbo will handle more fuel(when spooled up) than a stock IP can provide, by about 50 RWHP.

Thanks, what do you mean the turbo will handle more fuel than what a stock ip can handle. Are you saying the motor and ip cant handle the turbos full potential

 

[Chrismohan]

Idk what happened to my response but I have the latest generation sidewinder kit and my ip is turned all the way up and still needs way more fuel. I only get a tiny bit of smoke when I gun it then it's gone but when my wastegate was hooked up it was hard to build boost and topped out around 6psi, I disconnected the wastegate and now it tops out at 13 and builds it quickly, I do have full 3 in straight pipe though

I have 3 1/4 pipe all the way out from turbo

 

[Chrismohan]

I have 3 1/4 pipe all the way out from turbo

And i dont have a wastegate

 

[bj_idi]

The turbo will eat up more fuel than what the ip can output even when turned up all the way. I would head stud it if you plan on going over 10lbs also a pyrometer would be in your benefit

Thanks, what do you mean the turbo will handle more fuel than what a stock ip can handle. Are you saying the motor and ip cant handle the turbos full potential

 

[Chrismohan]

The turbo will eat up more fuel than the ip can output even when turned up all the way. I would head stud it if you plan on going over 10lbs also a pyrometer would be in your benefit

I have a pyrometer and wouldnt the 89 have the necessary studs for 10-13 lbs of boost. This is a 7.3

 

[bj_idi]

Turn the fuel up behind the ip cover on pass side. Sure it might last for a little while but if you plan to go over 10 lbs I'd stud it

 

[Sidewinded_idi]

My research showed many people run 13-15 psi safely on the 7.3. I run 13 no problem stock

 

[Chrismohan]

Turn the fuel up behind the ip cover on pass side. Sure it might last for a little while but if you plan to go over 10 lbs I'd stud it

Ok thanks

 

[bj_idi]

I have the same kit would spike 15 lbs lost head gasket that's just my .02

 

[Chrismohan]

I have the same kit would spike 15 lbs lost head gasket that's just my .02

Was it a 6.9 or 7.3? The 7.3s were a lot stronger

 

[bj_idi]

Was it a 6.9 or 7.3? The 7.3s were a lot stronger

93 7.3 granted it did last over 2 years turbo and I wasn't too easy on it but not studding it was always a thought in the back of my mind.