Slowest Ty Ever!

[stashisclay]

I THINK I HAVE TO HAVE THE SLOWEST TY EVER!! i FINALLY GOT TO GO TO THE TRACK LAST NIGHT AFTER MONTHS OF WAITING. WHAT A DISAPPOINTMENT!!!! I REALLY NEED TO GET THIS THING TUNED. i ONLY HAVE 66,000 MILES ON MY TY, BUT HAVE DONE THE FOLLOWING UPGRADES...
3INCH STAINLESS BORLA EXHAUST WITH THE CAT HOLLOWED OUT, TODD-AUSTIN 10-1 CHIP, 20G TURBO, TPI AIR FOIL KIT, FRESH TUE UP..CAPS, PLUGS ,ROTOR, THANKS TO DETROIT TURBO, AND I HAVE A RACETRONIX FUEL PUMP KIT ALSO, "NOT INSTALLED YET". HERE IS THE DISAPPOINTING THING...I RAN A "GULP" 14.8 LAST NIGHT. THIS WAS WITH A GOOD REACTION TIME OF .783, BUT TOP END WAS ONLY 88MPH. HOW BOOKED UP IS ROCKFORD???
HELP,
STASH

 

[dgoodhue]

Re: Slowest Ty Ever!

Please lay off the caps, on the internet capitals is YELLING.

14.8 @88mph sucks especially with a 20g turbo and a chip. You need to look at it with a scan tool and figuire out what is wrong.

 

[Timbo]

Re: Slowest Ty Ever!

At least you didn't get beat by a Maxima.

 

[Raist103]

Re: Slowest Ty Ever!

you should be runnnig 12.8-9's get datamaster or turbo link asap and stop driving till then. 88mph means many problems are going on most likely is knock.

 

[stashisclay]

Re: Slowest Ty Ever!

.....uhh I did get beat by a maxima. whaaaaa
at least he had a turbo and 100 shot.
took him about 10 car lenths of the line, but he got me at the end.

 

[bezerk]

Re: Slowest Ty Ever!

what converter you do have?
a 20G normally requires a higher stall TC to spool up..

 

[JustBeachin]

Re: Slowest Ty Ever!

Low mph can also be related to fuel pump, or clogged fuel filter. Also, do you have an adjustable FPR?

 

[bezerk]

Re: Slowest Ty Ever!

his O2 volts seemed fine on DM

 

[stashisclay]

Re: Slowest Ty Ever!

stock converter, no fpr, but it never feels like it is falling on its face. I've long suspected that it doesn't run right but now i have the proof to back it up. The 20g turbo i put in was a direct bolt up, and no other mods,"so they said" we needed. I will be doing the fuel pump but the wiring in the kit looks pretty hairy. anyone got a dm near by. I'm an indiana boy about 1/2hr from chitown.

 

[bezerk]

Re: Slowest Ty Ever!

you don't need a wiring kit..

what was the time with a stock turbo?

 

[Timbo]

Re: Slowest Ty Ever!

Do you have a 3-bar MAP?

 

[stashisclay]

Re: Slowest Ty Ever!

chip calls for a 2 bar sensor...did I mention a todd austion 10-1 chip?
the one I have calls for the original 2 bar. I never took the truck to the track, with the original turbo. This was my first time.

 

[stashisclay]

Re: Slowest Ty Ever!

I know I don't need a wiring kit, but the kit i got from detroit turbo, had one included. I hear that the walbro draws more amps, and that is what the wiring kit is for.
tony

 

[Divergent Lightning]

Re: Slowest Ty Ever!

do you mean the wiring kit as in the racetronix kit with the fuel pump?

Without a Walboro I would expect a stock 20g truck to run like crap...

I would switch to a 3-bar map chip. As you might be overboosting past the 2-bars and it is cutting fuel because of it.

 

[VermontTy]

Re: Slowest Ty Ever!

I know I don't need a wiring kit, but the kit i got from detroit turbo, had one included. I hear that the walbro draws more amps, and that is what the wiring kit is for.
tony

The wiring kit is to wire the pump more directly, so that it's less apt to see a drop in voltage when there is a large demand in power, i.e. aftermarket electric fan kicking on. Flow on the Walbro can drop off quite a bit when voltage varies; the kit is intended to take care of that.

As for the chip using the 2bar MAP? I'll have to stay tuned to this one. I'd think you bought the 20G so you could run more than 15psi boost. Any chip will read the MAP and other conditions, and provide fuel accordingly.

Wonder if the 2bar map peaks at 15 psi, although boost still may be more. MAP reading 15psi fuels the truck for 15psi, leaning it out? Knocking leading to KR and the truck falling on its face? But mentioned above, DM O2 readings were Kosher. huh........

 

[stashisclay]

Re: Slowest Ty Ever!

First off, let me say thanks for all the help everyone is providing. Always great to have a place to go to get advice. With regards to the wiring, yes it is a racetronixs kit. I think everyone misread the first post......"my ty does not feel like it is hitting a wall", I have acceleration constantly. That's why I am so perplexed.
Maybe I am understanding fuel management wrong. What i mean is even if I install the walbro fuel pump, wouldn't it be getting the same amount of fuel?? I thought I would have to upgrade injectors and have a FPR for any difference to be made.
I bought a 3 map sensor but was told not to run it unless I upgraded either my injectors or got a different chip like the newer ultimate. Does any of this sound correct, or am I just totally missing the boat on this one?
thanks
Stash

 

[stashisclay]

Re: Slowest Ty Ever!

Almost forgot, I don't know where the one member got that my o2 was fine on datemaster....I havne't got a datamaster to run on it yet...??

 

[Timbo]

Re: Slowest Ty Ever!

You should not need to upgrade anything with a 3 bar MAP. Stock injectors should be fine with a 20g, and unless I'm mistaken, if your chip is made for a 2-bar, switching to a 3-bar will have no adverse effects.

 

[sy538]

Re: Slowest Ty Ever!

Maybe I am understanding fuel management wrong. What i mean is even if I install the walbro fuel pump, wouldn't it be getting the same amount of fuel??

It would be getting the same amount of fuel IF the stock pump could pump as much fuel as the truck wants to deliver, which it probably can’t. When I bought my truck it had about 48,000 miles and was 100% stock. It was running lean, calling for 110-120% injector duty cycle, making knock retard, and running mid to high 800s for O2mv. I changed to a walbro fuel pump and it got rid of almost all of my knock, raised my O2mv up to low 900s, and lowed injector duty cycle to ~100%.

You really need to get a scantool on your truck soon.

 

[VermontTy]

Re: Slowest Ty Ever!

Getting a fuel pressure regulator and setting your base fuel pressure to work off is always a good place to start. What are you running for fuel also; I assume at least 91?

As Ian said, put the Walbro in. The harness is supposed to be straight plug & play. In many people's eyes, a FPR and aftermarket fuel pump are must-have safety upgrades to any truck, stock or modded.