Rear end gears for turbo application???

98SnakeHorse · January 30th, 2012, 10:26 AM

So a buddy of mine that is very familiar with installing rear end gears offered to trade me his 3.27's for my 4.10's and install them on my car. My car is turboed and I am wondering if his 3.27's will better or worse my situation. Currently the 4.10's are way too much for m turbo. I'm really wanting 3.73's or 3.55's, but am not sure if the 3.27's would be overkill.

F8L GT · January 30th, 2012, 10:34 AM

lower gears (numerically) will put more load on the engine. More load = more power and faster spool times with a turbo car.

98SnakeHorse · January 30th, 2012, 11:05 AM

Originally Posted by F8L GT

lower gears (numerically) will put more load on the engine. More load = more power and faster spool times with a turbo car.

Yes that is what i'm looking for but am not sure if the 3.27's will be (too much load). Like destroy my low end. My turbo isnt that big so i'm sure there wouldnt be much spool time.

F8L GT · January 30th, 2012, 11:09 AM

i would probably go with 3.55s

99FiveOh · January 31st, 2012, 12:08 PM

From all the threads and people I've spoken to, 327's are like the holy grail gear ratio for turbo applications.

johnGT · January 31st, 2012, 08:43 PM

I would try the 3.27s since you have them at hand. Most turbo/supercharged applications use/call for 3.55s..but the difference between those 2 ratios is only a couple hundred RPM at most...

RioRed95 · February 2nd, 2012, 08:14 AM

I am getting ready to also do gears this spring. I am gonna go 3.55s. I think they will be just bout perfect in a supercharged car. I am pretty sure thats what most of the termi cars ran from the fractory and they seem to be a good all round gear for them.

Bullitt95 · February 2nd, 2012, 09:47 AM

Originally Posted by 98SnakeHorse

So a buddy of mine that is very familiar with installing rear end gears offered to trade me his 3.27's for my 4.10's and install them on my car. My car is turboed and I am wondering if his 3.27's will better or worse my situation. Currently the 4.10's are way too much for m turbo. I'm really wanting 3.73's or 3.55's, but am not sure if the 3.27's would be overkill.

The 3.27s would be an excellent choice. Use them.

98SnakeHorse · February 3rd, 2012, 04:52 PM

Alright, thanks for the input. I will be swapping them out soon. Better powerband time for me!

JakeM · February 3rd, 2012, 11:59 PM

Originally Posted by F8L GT

i would probably go with 3.55s

+1. 3.55's and a taller tire. If they aren't enough or to much then you can adjust tire size accordingly. Also, 3.55's will be nicer on the street.

Bullitt95 · February 4th, 2012, 08:31 AM

Originally Posted by JakeM

+1. 3.55's and a taller tire. If they aren't enough or to much then you can adjust tire size accordingly.

Except that the OP would need to buy 3.55s and he'd also need to buy taller tires, so that's a rather expensive way to go. He can get the 3.27s effectively for free so it makes sense to use them with his existing tires.

99FiveOh · February 4th, 2012, 09:17 AM

Originally Posted by JakeM

+1. 3.55's and a taller tire. If they aren't enough or to much then you can adjust tire size accordingly. Also, 3.55's will be nicer on the street.

I don't think taller tires are even an option for most people. We do have the looks of our cars to consider here and taller tires on an SN95 look like crap! Fox bodies can get away with it but not ours!

January 30th, 2012, 10:26 AM	#1
98SnakeHorse Enthusiast 1995 Mustang Gt Join Date: Jul 2010 Location: Oskaloosa Posts: 708 iTrader: 1 reviews	Rear end gears for turbo application??? So a buddy of mine that is very familiar with installing rear end gears offered to trade me his 3.27's for my 4.10's and install them on my car. My car is turboed and I am wondering if his 3.27's will better or worse my situation. Currently the 4.10's are way too much for m turbo. I'm really wanting 3.73's or 3.55's, but am not sure if the 3.27's would be overkill. __________________ 98 Cobra_stock bs/exhaust [SOLD] 2000 s/c gt, 511rwh 450rwtq [SOLD] 1995 331 Stroker Gt, (Turbo build in progress) - http://www.moddedmustangs.com/forums...-95-5-0-a.html

January 30th, 2012, 10:34 AM	#2
F8L GT !FACEPLATED! 2002 Mustang GT 7.84 @ 86.01 Join Date: Jul 2008 Location: Upper Michigan Posts: 12,917 iTrader: 13 reviews	lower gears (numerically) will put more load on the engine. More load = more power and faster spool times with a turbo car. __________________ MM Bracket Racing Crew Co-Founder ~Its a Drag Car, Not a Show Car~ LINK-->Custom Race Transmission Build<--LINK

January 30th, 2012, 11:09 AM	#4
F8L GT !FACEPLATED! 2002 Mustang GT 7.84 @ 86.01 Join Date: Jul 2008 Location: Upper Michigan Posts: 12,917 iTrader: 13 reviews	i would probably go with 3.55s __________________ MM Bracket Racing Crew Co-Founder ~Its a Drag Car, Not a Show Car~ LINK-->Custom Race Transmission Build<--LINK

January 31st, 2012, 12:08 PM	#5
99FiveOh Regular 1999 Mustang Join Date: Apr 2010 Location: Jacksonville, FL Posts: 204 iTrader: 0 reviews	From all the threads and people I've spoken to, 327's are like the holy grail gear ratio for turbo applications. __________________ 1999 V6 Vert converted to 5.0 EFI with Vortech V2 SQ, Edelbrock Performer intake, BBK shorties, O/R H, Flowmasters, 42lb injectors, 75mm Pro-M with MAFia extender, 255lph fuel pump. SCT tuned 370 rwhp 400 rwtq.

January 31st, 2012, 08:43 PM	#6
johnGT Regular 1995 Mustang GT vert Join Date: Jan 2011 Location: GA Posts: 499 iTrader: 0 reviews	I would try the 3.27s since you have them at hand. Most turbo/supercharged applications use/call for 3.55s..but the difference between those 2 ratios is only a couple hundred RPM at most... __________________ 1995 Mustang GT vert: STOCK, AODE (B&M shift kit), 2.73 gears, red leather, 410,000~ miles. 2007 Mustang GT: 4.6, 5-speed, 3.55 gears, black on black. (dads car) 1975 Camaro LT: 305ci, TH-350, weiand intake, 600cfm carb, 3.42 gears.

February 2nd, 2012, 08:14 AM	#7
RioRed95 Regular 95 Mustang GT Join Date: Apr 2011 Location: Warren, PA Posts: 127 iTrader: 0 reviews	I am getting ready to also do gears this spring. I am gonna go 3.55s. I think they will be just bout perfect in a supercharged car. I am pretty sure thats what most of the termi cars ran from the fractory and they seem to be a good all round gear for them.

February 3rd, 2012, 04:52 PM	#9
98SnakeHorse Enthusiast 1995 Mustang Gt Join Date: Jul 2010 Location: Oskaloosa Posts: 708 iTrader: 1 reviews	Alright, thanks for the input. I will be swapping them out soon. Better powerband time for me! __________________ 98 Cobra_stock bs/exhaust [SOLD] 2000 s/c gt, 511rwh 450rwtq [SOLD] 1995 331 Stroker Gt, (Turbo build in progress) - http://www.moddedmustangs.com/forums...-95-5-0-a.html

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