RE: 98 Jimmy Turbo using Typhoon parts: (Full Version)

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RE: 98 Jimmy Turbo using Typhoon parts:

  

swartlkk -> RE: 98 Jimmy Turbo using Typhoon parts: (2/28/2008 4:50:36 AM)

You shouldn't plug a return line in a return type system.  At the least it should be just a higher pressure regulator.  It should also be a hi-po pump...

  
drperry -> RE: 98 Jimmy Turbo using Typhoon parts: (2/28/2008 4:56:47 AM)

That's what I thought, lol.

It was a Powerdyne kit the guy installed...

"Well it comes with, what is basically a fuel pressure regulater. It mounts down by the fuel filter. It goes inline with the return line so basically when it sees boost. It blocks off the return line which ups your fuel pressure or maxes out your fuel pump. Our pumps are capible of 90 psi. I put my fuel pressure gauge on it and drove it. The fuel pressure went to 85 PSI at 7 PSI boost."

Is what he had to say...

I just couldn't see that being good for the pump in any way...

UR50SLO -> RE: 98 Jimmy Turbo using Typhoon parts: (2/28/2008 5:56:36 AM)

quote:

"Well it comes with, what is basically a fuel pressure regulater. It mounts down by the fuel filter. It goes inline with the return line so basically when it sees boost. It blocks off the return line which ups your fuel pressure or maxes out your fuel pump. Our pumps are capible of 90 psi. I put my fuel pressure gauge on it and drove it. The fuel pressure went to 85 PSI at 7 PSI boost."


That's a FMU.... That's what I've been ranting about.  It's a total Pile of $hit. It's a terrible way to fuel a boosted engine. The only correct way to fuel it is with a custom program where you can change the actual Injector duty cycle and ignition timing along with MANY other perameters that need to be changed for a engine that is seeing boost. 99% of making good power and reliabilty along with retaining Fuel Milage and drivability is the tune. I've seen guys throw thousands of dollars on good parts and have a crap tune and hurt their car or not even come close to making the power they thought they were going to. It's hard to spend money on somthing that's not "tangable" or you can't see... A tune is just that... You can't "see" it or feel it and alot of people miss that inportant step.
And don't go to a Dyno to tune stuff. That's a total joke. I've never been to a dyno with any of my stuff and don't see a point. There's alot of other factors on a vehicle than just the rear tire rolling resistace.  Wind drag, "real road drag" resistance of the rest of the car rolling... fuel slosh in the tank for take off. Among alot of other things that a Dyno can't properly simulate.
Going to a dyno to tune Wide Open Throttle (WOT) for 4-5pulls isn't going to get you anywhere close to a real tune. The numbers they come up with on the dyno are never acurrate anyway. They can vary a number of inputs to make it read whatever they want. It's a racket.
You need to tune WOT LAST... .... Everything before WOT is where you spend most of your time driving. It comes first.
Ok.. I'm going to finish taking pictures of this fuel pump assembly and post them for you guys so your not paying 300.00 for a junk pump and sending unit from A-zone or Advance.

UR50SLO -> RE: 98 Jimmy Turbo using Typhoon parts: (2/28/2008 7:18:35 AM)

Hope this helps someone who wants to do a cheaper better fuel pump for the sending units like this one. The Warbro 255lr/hr pump is 99.00 through www.fullthrottlespeed.com
Here's the process.
Dis-assemble with screwdriver. Push in the two tabs on each side of the slide in plastic center section.. it comes apart. Remove all old parts from inside.. including the black plastic line/rubber gromits ect. Gut everything.
I put the pump back in the black rubber jacket that was on the old pump. It sets the right depth for the new one. It's snug.. .but it'll go on. Light oil might help slid it on.
The pump comes with all hose/clamps/wire harness adaptor. Plug and play.
I cut approx 1/4 to 1/2" off the hose it comes with since the pump is on "springs" and you have to push it down some in the tank.. By cutting that small peice off it pre-loads the springs and it shouldn't kink the hose when you put it in the tank. If you leave it too long there's a chance when you push it down into the tank it could fold too far and kink the rubber feed line......
That's really it. I filed the top of the sending unit by where the wires plug in so I could get the screwdiver/clamp on a little deeper....
Hope that helps,Scott~
[image]http://www.michaelrenz.com/upload/files/255apart.JPG[/image]
All apart and gutted (above)
[image]http://www.michaelrenz.com/upload/files/255Unusedoldpumparts.JPG[/image]
This is all the stuff you won't need (above)
[image]http://www.michaelrenz.com/upload/files/255Oldnewparts.JPG[/image]
All parts... tools old/new and kit.
[image]http://www.michaelrenz.com/upload/files/255together.JPG[/image]
This is almost together. Need to cut that much off the hose (excess to load the springs)
Then slide it all back down into the housing and make sure the fuel sock(Strainer) is at the bottom. Click the wires together and it should look like this.(below)
[image]http://www.michaelrenz.com/upload/files/255finished.JPG[/image]
Here it is all together and with the box part number for you. That is how much hose I cut off the end to pre-load the springs.
Shouldn't take much longer than 15-20min to do this.
~Scott

swartlkk -> RE: 98 Jimmy Turbo using Typhoon parts: (2/28/2008 7:45:51 AM)

Very cool! 

Did you notice any difference in how the pump installed into your tank?  I would think you would want to reference how much the sending unit compressed initially, then remove a bit less than that amount from the rubber hose.  That hose isn't going to flex like the original accordian style plastic hose.

UR50SLO -> RE: 98 Jimmy Turbo using Typhoon parts: (2/28/2008 7:52:58 AM)

That's about how much I took out of mine. This is a buddy's that he gave me to do for him.
That plastic hose grows over time... it starts out small but it sure ends up a few inches longer over time with exposure to fuel.
The rubber EFI hose that's pictured will "give" a little if you need it to. I don't have the tank here to double check but I'm going off what I did with mine.
Just wanted to mention to anyone looking at doing this that if it's left too long it could bend over and pinch the line. Some tanks may have different depths. Just check while putting the sending unit back in and you'll be fine :)
~Scott

drperry -> RE: 98 Jimmy Turbo using Typhoon parts: (2/28/2008 7:59:05 AM)

Scott... Your avatar is hypnotizing me [:D]

UR50SLO -> RE: 98 Jimmy Turbo using Typhoon parts: (2/28/2008 8:08:30 AM)

I put some other interesting one's you can copy and use.

Hopefully they attatched.

Since All our stuff is turbocharged.. I'm almost Immune to boost... Na.. just kiddin...[:D]

[image]local://upfiles/8222/E2B31FBCD7D7400C873D0B959DD5AF78.jpg[/image]

[image]local://upfiles/8222/36DD17A0CCCC41BC869A1D4DA31825DD.jpg[/image]

[image]local://upfiles/8222/1147CC06AC8A4B09BA30738376EDB250.jpg[/image]

[image]local://upfiles/8222/02C31618C395462EB5D067831BE0E451.gif[/image]

swartlkk -> RE: 98 Jimmy Turbo using Typhoon parts: (2/28/2008 8:13:27 AM)

quote:

ORIGINAL: UR50SLO

Just wanted to mention to anyone looking at doing this that if it's left too long it could bend over and pinch the line. Some tanks may have different depths. Just check while putting the sending unit back in and you'll be fine :)
~Scott


That's exactly why I asked. 

972DRBLAZER -> RE: 98 Jimmy Turbo using Typhoon parts: (3/12/2008 7:34:55 PM)

scott, can you post a schamatic of your fuel injection wireing? i have been thinking of a rearmount turbo. i am interested in how you wired up those injectors on that marine manifold. i can do it myself, but just need to know what wire goes were? another thing, can i do this manifold change before i do my turbo without a computer retune. i would think that my ecm should still work with this manifold, right? thank you.



also, what about the map, and fpr?

UR50SLO -> RE: 98 Jimmy Turbo using Typhoon parts: (3/13/2008 6:28:01 AM)

The Injector wireing go's as follows:
Keep in mind... there is power to all the pink wires with ignition on.
The ECM Grounds the other side of the injectors to make them fire.

#1 injector: (E) Pink and (F) Black
#2 injector: (H) Pink and (G) Green/Black
#3 injector: (D) Pink and (C) Pink/Black
#4 injector: (J) Pink and (K) Light blue/Black
#5 injector: (B) Pink and (A) Black/White
#6 injector: (L) Pink and (M) Yellow/Black

If you take the main injector plug out of the top plenum where it go's to the spider injector.. and take the plastic cover off the top of the plug to expose the wires/connector you'll find the letters that I labled above go with the ports on the connector. Take 2 off at a time (for one injector) and go from 1-6.
(Picture Below)
[image]http://www.michaelrenz.com/upload/files/98injection.JPG[/image]

UR50SLO -> RE: 98 Jimmy Turbo using Typhoon parts: (3/13/2008 2:16:26 PM)

The injectors are slightly larger than your stock 23.1lb/hr injectors. The stock FPR on the Marine intake is set a little higher also.
I think with out tuning it might be rich on start up but not severe. The ECM will learn the rest of the fuel out for the time being. You'll still need HP tuners when your boosted.
~Scott

bitbandit -> RE: 98 Jimmy Turbo using Typhoon parts: (3/14/2008 9:41:57 AM)

Whats you gas mileage like with that setup ?

UR50SLO -> RE: 98 Jimmy Turbo using Typhoon parts: (3/14/2008 2:16:04 PM)

We drove it about 800mi round trip before the manifold change and tuning and got 21mpg on the highway.
I'm sure it's  at least at stock MPG if not a little above since I tuned it.
It just get's around alot better! Lol.
~Scott

If a turbo charged setup is done right and tuned correctly you won't hurt your fuel mileage. You can get positive results from the extra swirl and force the turbo adds even when not in "boost".
Most stock manifolds/cats ect are restrictive and kill effecency and flow. Adding a good turbo setup improves both.
My 89 Turbo Nissan Maxima get's 25mpg city and 30highway... runs 13.40's at 107.89mph. Engine is stock with 240,000mi. I turbo charged and tuned it 60,000mi ago.
[image]http://www.michaelrenz.com/upload/files/Maximacowel1.JPG[/image]

bitbandit -> RE: 98 Jimmy Turbo using Typhoon parts: (3/14/2008 2:34:59 PM)

Hmm, i like the sound of that, time to start hunting down parts.
with that hptuner are the "credits" you get with it cars you can use it on or is it how many ECU updates you can do ?

UR50SLO -> RE: 98 Jimmy Turbo using Typhoon parts: (3/14/2008 3:39:24 PM)

With HPTuners... there's Credits like you said... It comes with the ability to tune 4 different GM cars (8credits)
When you go to tune new cars it's 100.00 per car.
The way I understand it if you tune one "example" 98 Jimmy you can then tune any 98 Jimmy/Blazer with out purchasing new credits.
I've not had a "Duplicate" vehicle come in to test it on but that's the way it was presented to me when I bought it.
It takes awhile to get usto working with it but it's not that bad.
I've hacked alot of factory computers... every one has it's goods/bads.
I wish it was more "real time" tuning it'd make it faster but I can live with what I've got. Better than most.
~Scott

drperry -> RE: 98 Jimmy Turbo using Typhoon parts: (3/14/2008 4:05:31 PM)

You do realize you're going to have to post your tuning file up, right? [:D]

UR50SLO -> RE: 98 Jimmy Turbo using Typhoon parts: (3/14/2008 4:42:04 PM)

If any of you have HPTuners I'd be glad to mod your program or send you a version of mine that might suit your truck and setup.
No problem there. You'd have to have the exact setup as mine to use the tune I'm at now.
The timing table would be a good start for a boosted 4.3L.
There's alot to gain from the factory tune ... It's yuck. :)
~Scott

972DRBLAZER -> RE: 98 Jimmy Turbo using Typhoon parts: (3/14/2008 5:27:37 PM)

thanks for that info.

drperry -> RE: 98 Jimmy Turbo using Typhoon parts: (3/15/2008 4:20:57 AM)

quote:

ORIGINAL: UR50SLO

If any of you have HPTuners I'd be glad to mod your program or send you a version of mine that might suit your truck and setup.
No problem there. You'd have to have the exact setup as mine to use the tune I'm at now.
The timing table would be a good start for a boosted 4.3L.
There's alot to gain from the factory tune ... It's yuck. :)
~Scott


If only mine wasn't a hit or miss... HP Tuners doesn't support the '05 S-Series 4.3L [:D]


But soon as I snag HP Tuners, I'll let ya know and we can exchange stock profiles (if it works) and compare differences, lol

  

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