Power Pipe

pber13 · July 25th, 2009, 01:05 PM

as jive said, you lost boost because the cold air is denser, so the pressure is lower, but you probably gained power because of that colder denser charge. thats probably the difference you are feeling. this happened on muscle mustangs and fast fords' supercharged bullitt project when they dropped the inlet temps drastically

turbot4 · July 25th, 2009, 01:13 PM

Originally Posted by Black Bullitt

I'm not sure how I could do a blow through setup on the Bullitt. The discharge pipes are different than the GTs. I don't have the luxury of a long straight discharge pipe to do it.

where there's a will there's a way...

jivepepper · July 25th, 2009, 01:27 PM

Originally Posted by pber13

as jive said, you lost boost because the cold air is denser, so the pressure is lower, but you probably gained power because of that colder denser charge. thats probably the difference you are feeling. this happened on muscle mustangs and fast fords' supercharged bullitt project when they dropped the inlet temps drastically

Exactly. I can pic up as much as 2lb's in colder air and usually has more o2 in it.

Black Bullitt · July 25th, 2009, 09:08 PM

I'll see tonight when I head out to our local hang out spot at Bass Pro Shop. It should be a lot cooler by now than this afternoon. I'll report back what I found out.

turbot4 · July 26th, 2009, 07:47 AM

lol.....local Bass Pro Shop is the hangout.....
you going to shoot some squirels too?...

you might be a redneck if you hang out at your local Bass Pro Shop shooting squirels out your mustang window

YouTube - WHAT HAPPENS WHEN YOU PUT REDNECKS IN A 2009 MUSTANG BULLIT2

just playing with you....lol
video is pure shit, but the voices rock!!!

sxynerd · July 26th, 2009, 08:20 AM

I make more 3lbs up top with mine on cold days maybe 1lb on hot days.

Somethings else to look for is Maf backwash can be a problem with some setups but it's not an easy fix. The Bypass tube needs to be moved closer to the S/C inlet and placed at a 45* angle... I would start with either moving the maf lower down into the bumper, putting your bypass closer to the TB inlet tube (If it's not already there), or buy a Mini race Bypass.

mustanginky · July 26th, 2009, 10:04 AM

ask a lightning owner what happens when temps get cold. they've had some issues with blowing up in colder air due to more boost.

sxynerd · July 26th, 2009, 12:37 PM

Originally Posted by mustanginky

ask a lightning owner what happens when temps get cold. they've had some issues with blowing up in colder air due to more boost.

Your refering to pegging the small 90mm maf? My buddy blew the bottom of his block but racing on a cold night with a 90. Then I was using the same maf and I blew mine at 488rw on a cold night.

jivepepper · July 26th, 2009, 02:20 PM

That and they're not forged from the factory which I thought was stupid. I run a 90mm but it's a SCT 2400 with a diablo mafia

mustanginky · July 26th, 2009, 05:04 PM

Originally Posted by jivepepper

That and they're not forged from the factory which I thought was stupid. I run a 90mm but it's a SCT 2400 with a diablo mafia

exactly. i thought they had a forged set of pistons but not rods.

Black Bullitt · July 26th, 2009, 11:21 PM

Originally Posted by sxynerd

I make more 3lbs up top with mine on cold days maybe 1lb on hot days.

Somethings else to look for is Maf backwash can be a problem with some setups but it's not an easy fix. The Bypass tube needs to be moved closer to the S/C inlet and placed at a 45* angle... I would start with either moving the maf lower down into the bumper, putting your bypass closer to the TB inlet tube (If it's not already there), or buy a Mini race Bypass.

I have a Vortech setup, so my MAF is already as low as it will go in the fender well. Currently I'm using a turboXS bypass valve. It works the same as the plastic bosch one, but it's metal and was taken off a t-trim aftercooled Bullitt making way more than I am, so I know it works.

I got on it last night and didn't see any improvement in boost. Well, the plus side is I think I'm getting better gas mileage, down side is no gain in boost. Oh, well. It is what it is.

03_StangGuy · July 27th, 2009, 09:24 AM

Post up some pics if your setup, may well be able to notice something.

Black Bullitt · July 27th, 2009, 05:39 PM

It's raining right now. It'll have to be tomorrow for the pics.

MDK210 · July 27th, 2009, 10:03 PM

what up MAN! It's Baker, came up on your thread and wanted to let you know I'm watching you...!

Black Bullitt · July 27th, 2009, 11:06 PM

No, I'm watching you...

July 26th, 2009, 08:20 AM	#26
sxynerd Regular Join Date: Oct 2006 Posts: 457 iTrader: 0 reviews	I make more 3lbs up top with mine on cold days maybe 1lb on hot days. Somethings else to look for is Maf backwash can be a problem with some setups but it's not an easy fix. The Bypass tube needs to be moved closer to the S/C inlet and placed at a 45* angle... I would start with either moving the maf lower down into the bumper, putting your bypass closer to the TB inlet tube (If it's not already there), or buy a Mini race Bypass. Last edited by sxynerd; July 26th, 2009 at 08:23 AM.

July 26th, 2009, 10:04 AM	#27
mustanginky MM Fanatic 2000 gt Join Date: Feb 2009 Location: La grange, KY Posts: 4,259 iTrader: 2 reviews	ask a lightning owner what happens when temps get cold. they've had some issues with blowing up in colder air due to more boost. __________________ Procharged 2000 5 Speed BAB GT, built motor, blower cams, speedy dyno tune 412 hp, 450 rw tq HARDCORE CREW BRIGHT ATLANTIC BLUE CREW #1 MEMBER

July 26th, 2009, 02:20 PM	#29
jivepepper I Post Entirely Way Too Much Join Date: Mar 2006 Location: Under a sombrero Posts: 5,025 iTrader: 1 reviews	That and they're not forged from the factory which I thought was stupid. I run a 90mm but it's a SCT 2400 with a diablo mafia __________________ 665/541 WHP/WTQ 4.6L SOHC 2V ON 93 OCTANE PUMP GAS. NO METH INJ., NO E85, NO RACE GAS, N2O BABY BOTTLES! TRAP=POWER: 11.01 @135, IN SUMMER HEAT, 1350' TRACK, 315/35/17 DR'S

July 27th, 2009, 09:24 AM	#32
03_StangGuy I Poop Entirely Way Too Much Blown 03 GT Join Date: Jun 2007 Location: Long Island NY Posts: 6,917 iTrader: 0 reviews	Post up some pics if your setup, may well be able to notice something. __________________

July 27th, 2009, 10:03 PM	#34
MDK210 Newbie 2001 SVT Cobra Join Date: Jul 2009 Location: Hampton, VA Posts: 49 iTrader: 0 reviews	what up MAN! It's Baker, came up on your thread and wanted to let you know I'm watching you...! __________________ 2008 F150 5.4l Roushcharged: http://s330.photobucket.com/albums/l...0F150%20Roush/ 2001 SVT Cobra 4.6l Procharged: http://s330.photobucket.com/albums/l...20SVT%20Cobra/

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