can i boost high compression?

skuba · October 11th, 2009, 07:03 PM

i got a 98 gt with forged high compr. pistons. would running boost hurt my motor?

acmillr · October 11th, 2009, 07:05 PM

What are you referring to as "high compression"? Anything under 10.5:1 will handle SOME boost on 93.

skuba · October 11th, 2009, 07:11 PM

10.5 : 1. is what i want to get so ill be fine running about 8-10 psi? if not how much compression will be good with boost?

Thumbie · October 11th, 2009, 07:53 PM

You either want high compression OR boost. Choose your fate

mustanginky · October 11th, 2009, 07:54 PM

i'd only run about 6 lbs with that, not 8-10.

MustangGT06 · October 11th, 2009, 09:23 PM

You'd have to run 100 octane all the time if you run alot of boost.

Doc8224 · October 11th, 2009, 09:29 PM

Originally Posted by skuba

i got a 98 gt with forged high compr. pistons. would running boost hurt my motor?

Originally Posted by skuba

10.5 : 1. is what i want to get so ill be fine running about 8-10 psi? if not how much compression will be good with boost?

You said you have high compression then you said you want high compression. If you don't have high compression yet and you are gonna build a motor and put boost to it then go with lower compression 8.5:1 or 9:1 with forged pistons and boost the hell out of it is what I would do.

DickH · October 12th, 2009, 02:15 AM

if you are going out of your way for a built bottom made for boost, then get 8.5 to 1 and run as much boost as you feel.

Thumbie · October 12th, 2009, 03:20 AM

boost gets you laid

Trick Tuners · October 12th, 2009, 12:41 PM

Sure dude, high compression with boost will make gobs of power, but you can rule out filling up a the pump.

BLOWN2V · October 12th, 2009, 05:01 PM

imo 8.5-1 is too low well depending what blower your running ... i would run 9-1 to 9.5-1 but I wouldnt be looking for much higher unless you want no timing and or have to run race gas

October 11th, 2009, 07:03 PM	#1
skuba Newbie Join Date: Oct 2009 Posts: 2 iTrader: 0 reviews	can i boost high compression? i got a 98 gt with forged high compr. pistons. would running boost hurt my motor?

October 11th, 2009, 07:05 PM	#2
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,120 iTrader: 2 reviews	What are you referring to as "high compression"? Anything under 10.5:1 will handle SOME boost on 93. __________________

October 11th, 2009, 07:11 PM	#3
skuba Newbie Join Date: Oct 2009 Posts: 2 iTrader: 0 reviews	10.5 : 1. is what i want to get so ill be fine running about 8-10 psi? if not how much compression will be good with boost? Last edited by skuba; October 11th, 2009 at 07:21 PM.

October 11th, 2009, 07:53 PM	#4
Thumbie Hardcore Enthusiast 2001 Cobra 14.2@102 (I suck) Join Date: Apr 2009 Location: SF Bay Area, CA Posts: 1,621 iTrader: 0 reviews	You either want high compression OR boost. Choose your fate __________________ 2001 Cobra with SRA swap, modded for twisties MM Cobra Club Member #76

October 11th, 2009, 07:54 PM	#5
mustanginky MM Fanatic 2000 gt Join Date: Feb 2009 Location: La grange, KY Posts: 3,982 iTrader: 2 reviews	i'd only run about 6 lbs with that, not 8-10. __________________ 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

October 11th, 2009, 09:23 PM	#6
MustangGT06 Enthusiast Join Date: Aug 2009 Posts: 569 iTrader: 0 reviews	You'd have to run 100 octane all the time if you run alot of boost.

October 12th, 2009, 02:15 AM	#8
DickH MM Fanatic 2003 gt 5.4 32v on the way Join Date: May 2007 Location: Omaha Posts: 3,945 iTrader: 2 reviews	if you are going out of your way for a built bottom made for boost, then get 8.5 to 1 and run as much boost as you feel. __________________ Before asking a gearing related question click THIS link and enjoy all your saved time. Click here for your tuning needs My slow paced budget 5.4 dohc build

October 12th, 2009, 03:20 AM	#9
Thumbie Hardcore Enthusiast 2001 Cobra 14.2@102 (I suck) Join Date: Apr 2009 Location: SF Bay Area, CA Posts: 1,621 iTrader: 0 reviews	boost gets you laid __________________ 2001 Cobra with SRA swap, modded for twisties MM Cobra Club Member #76

October 12th, 2009, 12:41 PM	#10
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,471 iTrader: 3 reviews	Sure dude, high compression with boost will make gobs of power, but you can rule out filling up a the pump. __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

October 12th, 2009, 05:01 PM	#11
BLOWN2V Regular 2000 10.67 Join Date: Jul 2009 Location: Island Lake, IL Posts: 135 iTrader: 0 reviews	imo 8.5-1 is too low well depending what blower your running ... i would run 9-1 to 9.5-1 but I wouldnt be looking for much higher unless you want no timing and or have to run race gas __________________ 2000 GT 60' 1.42 1/4 10.49 mph 129.8

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