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Old 09-07-2005, 04:05 PM   #21
bad360rt
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Originally Posted by 99SL2_Modder
35 ish bucks and I get about 190mpg. I can only imagine. But then again, he's indicated taht he's tuned, so if he doesn't WOT it all the time, he's probably fine on gas.
I get 17.5mpg on the highway in the truck, if I keep my foot out of it, that's 2.5mpg better than I got stock But I have a '93 Cherokee for a beater, and I've been driving the wife's Jetta to work to save on gas. Gonna pick up a '95 Golf from my inlaws in a couple weeks, that'll be my commuter car (56 miles everyday roundtrip to/from work).
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Old 09-07-2005, 04:06 PM   #22
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Originally Posted by 99SL2_Modder
I stand corrected.
LOL It's about as "tuned" as you can get it w/o a standalone. Unfortunately there's no easy tuning options for these trucks. And even with the SAFC I'm running, all I can do is trim the injectors, can't add fuel with our pcm.
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Old 09-07-2005, 04:07 PM   #23
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Quote:
Originally Posted by bad360rt
I get 17.5mpg on the highway in the truck, if I keep my foot out of it, that's 2.5mpg better than I got stock
I get about 19mpg highway. That's about 21 less than stock. Running pig rich sucks.

You're lucky.

*edit*

Quote:
Originally Posted by bad360rt
LOL It's about as "tuned" as you can get it w/o a standalone. Unfortunately there's no easy tuning options for these trucks. And even with the SAFC I'm running, all I can do is trim the injectors, can't add fuel with our pcm.
Megasquirt. Very cheap. 300-ish for complete fuel tuning. like 375-400ish for fuel and spark. Very nice system.
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Old 09-07-2005, 04:14 PM   #24
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How about a mechanical Rising Rate FPR?

As your boost increases the RRFPR's "Boost to Fuel Pressure Ratio" will increase and introduce a fatter and fatter mixture as you go up, assuming your injectors and pump are up to the task.

Standalone setups are nicer, but also a little too expensive for my taste.

EDIT: And i get 24 mpg average. 35 mpg if i stay out of the gas.
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Old 09-07-2005, 04:52 PM   #25
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Yup, the Paxton kit comes with a RRFPR. I bumped the pressure up to about 70psi at idle, which puts me in the mid 80's under full boost, don't want to go much above that. Yeah, cost is what's kept me from a standalone this far. Gonna try bigger airhat injectors, if that doesn't work, just gonna have to start saving my pennies
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Old 09-07-2005, 04:53 PM   #26
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Originally Posted by 99SL2_Modder
*edit*

Megasquirt. Very cheap. 300-ish for complete fuel tuning. like 375-400ish for fuel and spark. Very nice system.
I've thought about that, but no one has tried it on these trucks yet. I'm always skeptical about being the guinea pig, but I might give it a shot. Parish is running it on his 1000+hp truck, so it definitely works.
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Old 09-07-2005, 04:59 PM   #27
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Originally Posted by bad360rt
I've thought about that, but no one has tried it on these trucks yet. I'm always skeptical about being the guinea pig, but I might give it a shot. Parish is running it on his 1000+hp truck, so it definitely works.
Most of the turbo saturns run the MS.

There's a ton of cars running MS and MS2. Ian (the fastest turbo turd that we know of) used a Tec2. Ebay can snag those for significantly less than regular pricing.
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Old 09-07-2005, 10:03 PM   #28
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Nice. What kind of tires are you running on the back end when at the track?
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Old 09-08-2005, 09:01 AM   #29
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Thanks. I'm running 28x13.50 Hoosier QTP's on Bogart D-10's. They were at about 12psi on that run.
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Old 09-08-2005, 09:29 AM   #30
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Originally Posted by bad360rt
I bumped the pressure up to about 70psi at idle, which puts me in the mid 80's under full boost, don't want to go much above that.
Is is possible to get a RRFPR with a more aggressive ratio? like 70PSI @ idle and 90PSI under full boost? That was my thought, don't know about any particular product.
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Old 09-08-2005, 10:37 AM   #31
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Is is possible to get a RRFPR with a more aggressive ratio? like 70PSI @ idle and 90PSI under full boost? That was my thought, don't know about any particular product.
That's an idea. I'm gonna try bigger injectors in the airhat, see how that works, then go from there. Anyone wanna donate to my standalone fund?
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Old 09-08-2005, 02:33 PM   #32
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Impressive numbers. I'm assuming you're running ice in the water/air tank? I would think that would diminish any gains you'd normally see with cooler air. regardless, get the fuel sorted out and the top end should be plenty for 10s.
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Old 09-08-2005, 02:43 PM   #33
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Impressive numbers. I'm assuming you're running ice in the water/air tank? I would think that would diminish any gains you'd normally see with cooler air. regardless, get the fuel sorted out and the top end should be plenty for 10s.
Thanks. Yup, I run ice in the water tank when I'm at the track. I still see a big difference between the heat and cooler air tho. Got some bigger injectors on the way, might hit up Atco, not sure tho, might just wait for Cecil next month, don't want to break something and then miss the Cecil meet LOL
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Old 09-09-2005, 06:51 PM   #34
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What fuel pump are you running? Have you checked its flow chart to make sure it doesnt drop off at 90psi? Higher FP != more fuel all the time.
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Old 09-10-2005, 12:06 PM   #35
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What fuel pump are you running? Have you checked its flow chart to make sure it doesnt drop off at 90psi? Higher FP != more fuel all the time.
I'll look into that, thanks!
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Old 09-10-2005, 02:55 PM   #36
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thats a sick 60' for a RWD truck. You were running slicks right? I wouldn't even get 60' like that in my AWD.
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Old 09-10-2005, 06:30 PM   #37
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thats a sick 60' for a RWD truck. You were running slicks right? I wouldn't even get 60' like that in my AWD.
Thanks! I'm running 28x13.50 Hoosier QTP's. Should be able to hit some 1.5's with a few suspension tweaks and a bigger stall.
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