Best Gears With A Turbocharger?

BWAL09 · October 24th, 2007, 03:04 AM

i tried searching.. couldn't find exactly what i was looking for..

what would be the best gear ratio for a single turbocharger? i was thinking 3.55..

EDIT

sorry, its currently auto, but before the turbocharger, i'm planning on doing a 5 speed conversion

TurboLX · October 24th, 2007, 08:02 PM

anything higher then 3.55's will be bad

3.55's is kinda pushing it

SWEET2KSTANG · October 25th, 2007, 03:37 AM

depends on power and set up. a friend of mine had 4.10's in an auto with a s/c and it was great. with an auto you can get away with a steeper gear easy. going to a manual will change that drastically. i have 4.10's and hate them, i am going to a taller slick and probably 3.73'sif i dont get the results that i want. i ran 3.55's for a while, but it will take a lot of power to make the 3.55's work correctly.

Jucostud · October 27th, 2007, 12:50 AM

you want 4.10's with a turbo or centri, 3.73's with a Twin Screw.

TurboLX · October 27th, 2007, 01:07 AM

Originally Posted by Jucostud

you want 4.10's with a turbo

NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!

What are you saying!?!?!

3.8Coastie · October 27th, 2007, 02:42 AM

definitely 3.55 or under for turbo. 3.73 is good for SC. 4.10 is good for N/A autos

TurboLX · October 27th, 2007, 02:49 AM

Originally Posted by 3.8Coastie

definitely 3.55 or under for turbo. 3.73 is good for SC. 4.10 is good for N/A autos

:homo

ChrisJ · October 27th, 2007, 10:34 AM

Turbos love RPMs...

I think with the 5.0 a set of 3.27's would be perfect...

Darrell · October 27th, 2007, 12:03 PM

Originally Posted by BWAL09

i tried searching.. couldn't find exactly what i was looking for..

what would be the best gear ratio for a single turbocharger? i was thinking 3.55..

EDIT

sorry, its currently auto, but before the turbocharger, i'm planning on doing a 5 speed conversion

Depends on the combination, rpm range, etc.

An automatic will hold the boost when you shift. With a manual it will dump the boost between gear changes.

itschristorres8 · October 29th, 2007, 11:50 PM

Originally Posted by Jucostud

you want 4.10's with a turbo or centri, 3.73's with a Twin Screw.

your on crack buddy

TT86 · November 9th, 2007, 04:56 AM

I am runnin 3:73s on my turbo fox, and I break the tires loose in third gear when the boost hits (first and second gear are pointless). Do yourself a favor and get some 3:27s or maybe 3:55s if your not running too much hp. This is (of course) all dependent on what tires and suspension you'll be running. I have full autocross suspension with 17s and G-force TAs.... not so drag friendly... but fun as hell to drive to work every once in a while

mustangmanic · November 12th, 2007, 10:03 PM

omfg!!! 4.10's with any FI would send ur tires to hell!

For any turbo setup, i would stick under 3.55... infact i would just stick with stock gears. once u hit that max boost its gonna drop a load on that drivetrain and if u have a short gear, ur gonna spin no matter what. But with 3.27's u hit that boost, u'll catch trac and just GO!!!!

whtpny · November 13th, 2007, 05:06 PM

don't mean to hijack the thread.. but why should he get something like 3.27s or 3.55s on his car with his turbo? im gonna centri s/c mine but 3.27s are stock and i don't dig em.. is it just different with the 5.0 motors? i was thinking frpp 3.73s or 4.10s in mine..

mustangmanic · November 13th, 2007, 06:13 PM

Originally Posted by whtpny

don't mean to hijack the thread.. but why should he get something like 3.27s or 3.55s on his car with his turbo? im gonna centri s/c mine but 3.27s are stock and i don't dig em.. is it just different with the 5.0 motors? i was thinking frpp 3.73s or 4.10s in mine..

I explained it... kinda. As soon as you hit that boost, if you have a short gear ratio... ur gonna spin. 4.10's will most def spin like crazy 1st-2nd and probabably some of 3rd, 3.73's will most likely spin like a bitch 1st-2nd (if you have a TC, 3.73's are ideal for a SC). An ideal gear ratio would be a 3.55 for a TC 4.6PI and 3.27's in a 5.0. I say 3.27's in a 5.0 because their tq and hp max is reached at a much lower rpm than a modular engine.

TurboLX · November 13th, 2007, 06:45 PM

you will spin all gears with just about anything higher then 3:55's

whtpny · November 13th, 2007, 09:26 PM

Originally Posted by mustangmanic

I explained it... kinda. As soon as you hit that boost, if you have a short gear ratio... ur gonna spin. 4.10's will most def spin like crazy 1st-2nd and probabably some of 3rd, 3.73's will most likely spin like a bitch 1st-2nd (if you have a TC, 3.73's are ideal for a SC). An ideal gear ratio would be a 3.55 for a TC 4.6PI and 3.27's in a 5.0. I say 3.27's in a 5.0 because their tq and hp max is reached at a much lower rpm than a modular engine.

alright, i understand now, thanx man

TT86 · November 14th, 2007, 03:42 AM

Originally Posted by whtpny

don't mean to hijack the thread.. but why should he get something like 3.27s or 3.55s on his car with his turbo? im gonna centri s/c mine but 3.27s are stock and i don't dig em.. is it just different with the 5.0 motors? i was thinking frpp 3.73s or 4.10s in mine..

Click the link in my sig, this little clip takes place in 4th gear... listen closely at the end and hear what I say in the video.... and that is why you don't get 3:73s with twins

whtpny · November 14th, 2007, 09:25 AM

Originally Posted by TT86

Click the link in my sig, this little clip takes place in 4th gear... listen closely at the end and hear what I say in the video.... and that is why you don't get 3:73s with twins

deeeang

wadman · November 17th, 2007, 10:47 AM

Just buy the 4.10s and get some 285 35 - 18 drag radials like I did and freaking blow off the tires in the first three gears. People watching will cheer at you and think your cool. My turbo laughs at my 555r's.

TurboLX · November 17th, 2007, 01:05 PM

lol you will never gain traction with 4:10's

October 24th, 2007, 08:02 PM	#2
TurboLX I Post Entirely Way Too Much 1990 Mustang LX Turbo 8.67@165.91 mph Join Date: Oct 2006 Location: Hidden In NY Posts: 8,496	anything higher then 3.55's will be bad 3.55's is kinda pushing it __________________ Wiring Diagrams, TSB's, OBD Service Codes and Engine Diagrams Available. PM For Info Myspace *Small Block Posse*

October 25th, 2007, 03:37 AM	#3
SWEET2KSTANG MM Fanatic 2000 mustang gt 12.01@114.69 Join Date: Oct 2006 Location: N.W. AR Posts: 4,040	depends on power and set up. a friend of mine had 4.10's in an auto with a s/c and it was great. with an auto you can get away with a steeper gear easy. going to a manual will change that drastically. i have 4.10's and hate them, i am going to a taller slick and probably 3.73'sif i dont get the results that i want. i ran 3.55's for a while, but it will take a lot of power to make the 3.55's work correctly. __________________ stock long block, bolt ons, slicks, and a little squeeze 1/4 E.T. 12.06@114.69 Only two defining forces have ever offered to die for you: 1. Jesus Christ 2. The American G. I. One died for your soul, the other for your freedom.

October 27th, 2007, 12:50 AM	#4
Jucostud Hardcore Enthusiast 2007 Mustang Join Date: Nov 2006 Location: North of Dallas, TX Posts: 2,766	you want 4.10's with a turbo or centri, 3.73's with a Twin Screw. __________________ GT500 Spoiler Club Join the club and get your painted spoiler shipped for $120!

October 27th, 2007, 10:34 AM	#8
ChrisJ The Cable Guy... 2002 Mustang GT SLOW Join Date: Jun 2006 Location: Shepherdsville, Kentucky Posts: 15,400	Turbos love RPMs... I think with the 5.0 a set of 3.27's would be perfect... __________________ My Junk www.myspace.com/cjobe

November 9th, 2007, 04:56 AM	#11
TT86 Regular Join Date: Feb 2007 Posts: 247	I am runnin 3:73s on my turbo fox, and I break the tires loose in third gear when the boost hits (first and second gear are pointless). Do yourself a favor and get some 3:27s or maybe 3:55s if your not running too much hp. This is (of course) all dependent on what tires and suspension you'll be running. I have full autocross suspension with 17s and G-force TAs.... not so drag friendly... but fun as hell to drive to work every once in a while __________________ 69 convertible: 302/ DART heads/Z303 cam/Vic Jr./ 650 DP Tremec w/ 4:10s 86 hatch: 302/ Edel Al. heads/ F303 cam/ twin Garret T3 turbos 10 psi intercooled 52# injectors MegaSquirt II EMS http://www.youtube.com/watch?v=_urWMgS_IRQ

Best Gears With A Turbocharger?

Best Gears With A Turbocharger?

Re: best gears with a turbocharger?

go with 4.10 gears

November 12th, 2007, 10:03 PM	#12
mustangmanic Hardcore Enthusiast 2002 Mustang GT 13.334 @ 106.57 Join Date: May 2007 Location: Indianapolis Posts: 2,497	omfg!!! 4.10's with any FI would send ur tires to hell! For any turbo setup, i would stick under 3.55... infact i would just stick with stock gears. once u hit that max boost its gonna drop a load on that drivetrain and if u have a short gear, ur gonna spin no matter what. But with 3.27's u hit that boost, u'll catch trac and just GO!!!! __________________ Accufab 75mm TB and Pleunm, JLT cai, Steeda Caster Chamber Plates, Eibach Sportline Springs, Tokico Shocks/Struts, FRPP Aluminum Driveshaft, FRPP 3.73's, Hooker LT's, Hooker O/R X, Pypes Violator Catback, SCT Xcal 2. 280rwhp

November 13th, 2007, 05:06 PM	#13
whtpny Hardcore Enthusiast 2002 Mustang GT Join Date: Feb 2007 Location: Gainesville, GA Posts: 1,644	don't mean to hijack the thread.. but why should he get something like 3.27s or 3.55s on his car with his turbo? im gonna centri s/c mine but 3.27s are stock and i don't dig em.. is it just different with the 5.0 motors? i was thinking frpp 3.73s or 4.10s in mine.. __________________ Mods: Fidanza Al Flywheel, Steeda UDP, EMP/Stewart Components WP, PP Plenum, K&N FIPK, Mac Prochamber, Pypes Violator Catback WhtPny's Videos

November 13th, 2007, 06:45 PM	#15
TurboLX I Post Entirely Way Too Much 1990 Mustang LX Turbo 8.67@165.91 mph Join Date: Oct 2006 Location: Hidden In NY Posts: 8,496	you will spin all gears with just about anything higher then 3:55's __________________ Wiring Diagrams, TSB's, OBD Service Codes and Engine Diagrams Available. PM For Info Myspace *Small Block Posse*

November 17th, 2007, 10:47 AM	#19
wadman Regular Join Date: May 2007 Posts: 110	go with 4.10 gears Just buy the 4.10s and get some 285 35 - 18 drag radials like I did and freaking blow off the tires in the first three gears. People watching will cheer at you and think your cool. My turbo laughs at my 555r's.

November 17th, 2007, 01:05 PM	#20
TurboLX I Post Entirely Way Too Much 1990 Mustang LX Turbo 8.67@165.91 mph Join Date: Oct 2006 Location: Hidden In NY Posts: 8,496	lol you will never gain traction with 4:10's __________________ Wiring Diagrams, TSB's, OBD Service Codes and Engine Diagrams Available. PM For Info Myspace *Small Block Posse*

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