KB Twin Screw

Dawgfude03GT · September 22nd, 2007, 02:54 PM

I am running stock internals and thinking about doing a Twin Screw. how much boost could I run safely? Also I don't wanna blow out my rear end. Would 4:10 still be a good fit for gears?

HMUSN · September 22nd, 2007, 02:55 PM

3:73's if you plan on a twin screw.

keep it at around 9 psi and TUNE. a tune is your best friend.
keep it under 400rwhp and you will be fine.

Dawgfude03GT · September 22nd, 2007, 03:02 PM

what if I go over 400 HP should I swap out ther rear?

HMUSN · September 22nd, 2007, 03:03 PM

nah.. just don't launch on drag radials all the time.

besides if you do break it that just means it's time to upgrade

ChrisJ · September 22nd, 2007, 03:07 PM

Keep the power under 400rwhp as said before...

But also as said before a tune is the key to the puzzle...Without a good tune you will blow the engine...

The rear end will hold up as long as you dont hit the track to much with it...Drag Radials will kill the rear end...

Dawgfude03GT · September 22nd, 2007, 03:14 PM

yeah I don't plan on throwing those on. its a dailey driver during the summer Ijust want some more getup and blow the doors off any rice rockets that try to step! :-D :award

ChrisJ · September 22nd, 2007, 03:14 PM

Then a KB 2.1 would work just fine...Buy the intercooled version for even more safety...

weems · September 22nd, 2007, 03:15 PM

you should have no problem doing that with a kb

Dawgfude03GT · September 22nd, 2007, 03:24 PM

you dont think 9 psi is too much? or shouold I stick around 6-7?

ChrisJ · September 22nd, 2007, 03:25 PM

9psi is just fine with a good tune...

HMUSN · September 22nd, 2007, 03:25 PM

9psi is fine as long as your tune it on point.

it's all about the tune man.

edit: dammit chris ya beat me.

Dawgfude03GT · September 22nd, 2007, 03:27 PM

@ 9 psi it adds approx 160 HP which throws a stock GT to 420. I have cold air intake and cat back exhaust and throttle body nd upper plenum so that would prolly put me somewhere near 440 ish so then should I stick to 6 PSI? or even 7?

Dawgfude03GT · September 22nd, 2007, 03:27 PM

ok.

invisa stang · September 22nd, 2007, 03:43 PM

Originally Posted by HMUSN

3:73's if you plan on a twin screw.

keep it at around 9 psi and TUNE. a tune is your best friend.
keep it under 400rwhp and you will be fine.

ehh on my fathers car he put a kb on with 11lbs of boost with cold air, bigger throttle body, and exhaust and his car runs just fine

HMUSN · September 22nd, 2007, 03:46 PM

that because he has an on point tune.

an 11psi KB is pushing it on a 2v.

RC02GT · September 22nd, 2007, 05:27 PM

whats about the pricing for KB 99-04 GTs intercooled? there site doesnt work

Fryrice · September 22nd, 2007, 05:28 PM

Why do people ask for advice and then argue with it ?

invisa stang , what does you dad drive ?I can run 20lbs on my motor but that doesnt mean its a good idea .

invisa stang · September 22nd, 2007, 06:33 PM

he drives a 04 gt

Dawgfude03GT · September 22nd, 2007, 06:56 PM

twin screw intercooled is 4999.00

Dawgfude03GT · September 22nd, 2007, 06:57 PM

I've got a 75mm throttle body and an upper plenum is that the best bet for the twin screw?

September 22nd, 2007, 02:54 PM	#1
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 309	KB Twin Screw I am running stock internals and thinking about doing a Twin Screw. how much boost could I run safely? Also I don't wanna blow out my rear end. Would 4:10 still be a good fit for gears?

September 22nd, 2007, 03:07 PM	#5
ChrisJ MuchCoolerThanGTsetGO 2002 Mustang GT SLOW Join Date: Jun 2006 Location: Shepherdsville, Kentucky Posts: 16,281	Keep the power under 400rwhp as said before... But also as said before a tune is the key to the puzzle...Without a good tune you will blow the engine... The rear end will hold up as long as you dont hit the track to much with it...Drag Radials will kill the rear end... __________________ My Junk www.myspace.com/cjobe

September 22nd, 2007, 03:14 PM	#7
ChrisJ MuchCoolerThanGTsetGO 2002 Mustang GT SLOW Join Date: Jun 2006 Location: Shepherdsville, Kentucky Posts: 16,281	Then a KB 2.1 would work just fine...Buy the intercooled version for even more safety... __________________ My Junk www.myspace.com/cjobe

September 22nd, 2007, 03:15 PM	#8
weems Where iss at? 2003 Mustang Mach 1 12.89@104.6 Join Date: Aug 2006 Location: Macon, GA Posts: 3,097	you should have no problem doing that with a kb __________________ Beautiful

September 22nd, 2007, 03:25 PM	#10
ChrisJ MuchCoolerThanGTsetGO 2002 Mustang GT SLOW Join Date: Jun 2006 Location: Shepherdsville, Kentucky Posts: 16,281	9psi is just fine with a good tune... __________________ My Junk www.myspace.com/cjobe

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September 22nd, 2007, 02:55 PM	#2
HMUSN Doc 91 Sonic Blue Goodness 19.83 @ 12mph Join Date: Nov 2006 Location: NJ Posts: 27,311	3:73's if you plan on a twin screw. keep it at around 9 psi and TUNE. a tune is your best friend. keep it under 400rwhp and you will be fine.

September 22nd, 2007, 03:02 PM	#3
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 309	what if I go over 400 HP should I swap out ther rear?

September 22nd, 2007, 03:03 PM	#4
HMUSN Doc 91 Sonic Blue Goodness 19.83 @ 12mph Join Date: Nov 2006 Location: NJ Posts: 27,311	nah.. just don't launch on drag radials all the time. besides if you do break it that just means it's time to upgrade

September 22nd, 2007, 03:24 PM	#9
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 309	you dont think 9 psi is too much? or shouold I stick around 6-7?

September 22nd, 2007, 03:27 PM	#12
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 309	@ 9 psi it adds approx 160 HP which throws a stock GT to 420. I have cold air intake and cat back exhaust and throttle body nd upper plenum so that would prolly put me somewhere near 440 ish so then should I stick to 6 PSI? or even 7?

September 22nd, 2007, 03:46 PM	#15
HMUSN Doc 91 Sonic Blue Goodness 19.83 @ 12mph Join Date: Nov 2006 Location: NJ Posts: 27,311	that because he has an on point tune. an 11psi KB is pushing it on a 2v.

September 22nd, 2007, 05:27 PM	#16
RC02GT Enthusiast 2002 Mustang GT Join Date: Sep 2006 Location: Baltimore, MD Posts: 971	whats about the pricing for KB 99-04 GTs intercooled? there site doesnt work __________________ BBK CAI, BBK shortys, BBK x pipe, Flow's, MGW shifter

September 22nd, 2007, 05:28 PM	#17
Fryrice Hardcore Enthusiast Join Date: Oct 2006 Location: VA Posts: 2,034	Why do people ask for advice and then argue with it ? invisa stang , what does you dad drive ?I can run 20lbs on my motor but that doesnt mean its a good idea . __________________ Fryrice has left the building.

September 22nd, 2007, 06:33 PM	#18
invisa stang Regular 1992 mustang lx notch Join Date: May 2007 Location: shelton, ct Posts: 411	he drives a 04 gt __________________ www.myspace.com/lifeisasboringasdeath rides 1987 ford F-350 XLT Lariat 7.3L idi diesel projects 1979 ford F-350 custom (soon to get 7.3Lidi diesel)

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September 22nd, 2007, 06:56 PM	#19
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 309	twin screw intercooled is 4999.00

September 22nd, 2007, 06:57 PM	#20
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 309	I've got a 75mm throttle body and an upper plenum is that the best bet for the twin screw?