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: 335 iTrader: 0 reviews	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, 02:55 PM	#2
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	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, 03:03 PM	#4
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	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, 03:07 PM	#5
ChrisJ RLY SRS Join Date: Aug 2005 Location: Ft. Meade, MD Posts: 36,743 Blog Entries: 4 iTrader: 9 reviews	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... __________________ 2008 Acura TL Type-S - 2008 EB Ford Expedition - 2002 Boosted GT - Sold Facebook Google+

September 22nd, 2007, 03:14 PM	#7
ChrisJ RLY SRS Join Date: Aug 2005 Location: Ft. Meade, MD Posts: 36,743 Blog Entries: 4 iTrader: 9 reviews	Then a KB 2.1 would work just fine...Buy the intercooled version for even more safety... __________________ 2008 Acura TL Type-S - 2008 EB Ford Expedition - 2002 Boosted GT - Sold Facebook Google+

September 22nd, 2007, 03:02 PM	#3
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 335 iTrader: 0 reviews	what if I go over 400 HP should I swap out ther rear?

September 22nd, 2007, 03:15 PM	#8
weems Tech Exchange Head Honcho 2003 SVT Cobra 11.70 @ 121 Join Date: Aug 2006 Location: Forsyth/Statesboro, GA Posts: 9,050 iTrader: 3 reviews	you should have no problem doing that with a kb

September 22nd, 2007, 03:24 PM	#9
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 335 iTrader: 0 reviews	you dont think 9 psi is too much? or shouold I stick around 6-7?

September 22nd, 2007, 03:25 PM	#10
ChrisJ RLY SRS Join Date: Aug 2005 Location: Ft. Meade, MD Posts: 36,743 Blog Entries: 4 iTrader: 9 reviews	9psi is just fine with a good tune... __________________ 2008 Acura TL Type-S - 2008 EB Ford Expedition - 2002 Boosted GT - Sold Facebook Google+

September 22nd, 2007, 03:27 PM	#12
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 335 iTrader: 0 reviews	@ 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 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	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 Hardcore Enthusiast 2006 Saleen s/c Join Date: Sep 2006 Location: Baltimore, MD Posts: 1,128 iTrader: 0 reviews	whats about the pricing for KB 99-04 GTs intercooled? there site doesnt work __________________ 06 Saleen s281: 3.4 pulley, 39lb inj. KB BAP, steeda cai, steeda belt tensioner, saleen extreme inlet tube, bassani x, magnaflow, MGW, brenspeed tune

September 22nd, 2007, 05:28 PM	#17
Fryrice Hardcore Enthusiast Join Date: Oct 2006 Location: VA Posts: 2,034 iTrader: 0 reviews	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: 423 iTrader: 0 reviews	he drives a 04 gt __________________ [rides 1987 ford F-350 XLT Lariat 7.3L idi diesel projects 1979 ford F-350 custom (soon to get 7.3Lidi diesel) 1992 ford mustang notch (just shell soon to get engine and drive train hopefully)

September 22nd, 2007, 06:56 PM	#19
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 335 iTrader: 0 reviews	twin screw intercooled is 4999.00

September 22nd, 2007, 06:57 PM	#20
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 335 iTrader: 0 reviews	I've got a 75mm throttle body and an upper plenum is that the best bet for the twin screw?

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