4.10 gears equivalent hp gain
11-21-2006, 12:52 AM
#21
3rd Gear Member
Join Date: Jun 2006
Location: Houston
Posts: 683
RE: 4.10 gears equivalent hp gain
ok since, from what i have heard 4.10s drop the quarter mile times by about .3-.4, I would say around 15hp would give you that same decrease in times.....idk just trying to help other people see the actual question being asked!
11-21-2006, 01:12 AM
#23
4th Gear Member
Join Date: Jul 2006
Location:
Posts: 1,209
RE: 4.10 gears equivalent hp gain
ORIGINAL: cody6.0
Gears are still a band-aid fix for lack of power.
Gears are still a band-aid fix for lack of power.
11-21-2006, 01:18 AM
#24
5th Gear Member
Join Date: Jan 2006
Location: Orange County, California
Posts: 2,375
RE: 4.10 gears equivalent hp gain
ORIGINAL: cody6.0
Thats because the SOHC allready has no high RPM power and pull. Installing 4:10's is a easy way to make a GT quicker but it also makes it slower overall also.
It's kind of like gearing a old 1988-1992 F-Body with the 305 TBI.
ORIGINAL: sk8erdudex
upgrading to 4.10's lowered my trap speed...
upgrading to 4.10's lowered my trap speed...
Thats because the SOHC allready has no high RPM power and pull. Installing 4:10's is a easy way to make a GT quicker but it also makes it slower overall also.
It's kind of like gearing a old 1988-1992 F-Body with the 305 TBI.
11-21-2006, 01:27 AM
#25
4th Gear Member
Join Date: Oct 2006
Location: Durham, NC
Posts: 1,541
RE: 4.10 gears equivalent hp gain
alrighty taking a basic quater mile/hp calc and the rule of thumb: 4.10s lower et by .3-.4 seconds...here you go
a 3500 lb mustang with 400 hp and 3.27s runs the quarter in 12 seconds
a 3500 lb mustang would run approx 11.6-11.7 with 4.10s making hp gain 30-40 flywhel hp
tuh-duh...(in my opinion) its not too accurate, but i think thats more of what your looking for, try comparing times before and aft using some calculator
a 3500 lb mustang with 400 hp and 3.27s runs the quarter in 12 seconds
a 3500 lb mustang would run approx 11.6-11.7 with 4.10s making hp gain 30-40 flywhel hp
tuh-duh...(in my opinion) its not too accurate, but i think thats more of what your looking for, try comparing times before and aft using some calculator
11-21-2006, 02:15 AM
#26
3rd Gear Member
Join Date: May 2005
Location: tx
Posts: 927
RE: 4.10 gears equivalent hp gain
ORIGINAL: Armydad
Jesus H Christmas! Dudes your reading too much into this. rev limiter? one guy can have a mid pipe? WTF. I didn't ask about racing somebody.
Let me rephrase the question: If a stock 98 ran the quarter in X seconds, then switched to say 4.10 gears and ran the quarter again in Y seconds, Y being lower than X. Now all I would like to know is, if the gearing hadnt been changed, how much more hp would be need to get the same delta. Maybe some of you guys have track info from before and after a gear change, if you have times we can figure out the hp.
ORIGINAL: 01yellowgt
honestly it can come down to a drivers race.
In this instance for an 11.0 pass you will have to raise the rev limiter to cross the 1/4 with 4:10's or going across on the limiter for aways before the 1/4, because it will be trapping 120-125 (so hope the engine is forged). This instance assuming stock engines the higher gear might be the advantage expectiolly if you didnt raise the limiter. 3.27's would be pulling up top, where the 4:10's fell off and got to the point of being on the rev limiter.
for other instances. who ever has there car geared correctly the best for there that setup has the advantage and what they are trapping at mph wise has the advantage. wont get into hp, because enough variable of unknown
for a slower setup one guy can have a mid pipe, and the other have 4:10's in there bolton setup, and that being the only difference would be close.
ORIGINAL: Armydad
That is exactly what I mean.
ORIGINAL: Mark99GT
I think armydad means If you ran, say, an 11.00 with 4.10 gears, assuming all other mods to the cars equal, what kind of HP do you need to be putting down to run an 11.00 with stock the 3.27s Is that what you meant?
I think armydad means If you ran, say, an 11.00 with 4.10 gears, assuming all other mods to the cars equal, what kind of HP do you need to be putting down to run an 11.00 with stock the 3.27s Is that what you meant?
That is exactly what I mean.
In this instance for an 11.0 pass you will have to raise the rev limiter to cross the 1/4 with 4:10's or going across on the limiter for aways before the 1/4, because it will be trapping 120-125 (so hope the engine is forged). This instance assuming stock engines the higher gear might be the advantage expectiolly if you didnt raise the limiter. 3.27's would be pulling up top, where the 4:10's fell off and got to the point of being on the rev limiter.
for other instances. who ever has there car geared correctly the best for there that setup has the advantage and what they are trapping at mph wise has the advantage. wont get into hp, because enough variable of unknown
for a slower setup one guy can have a mid pipe, and the other have 4:10's in there bolton setup, and that being the only difference would be close.
Jesus H Christmas! Dudes your reading too much into this. rev limiter? one guy can have a mid pipe? WTF. I didn't ask about racing somebody.
Let me rephrase the question: If a stock 98 ran the quarter in X seconds, then switched to say 4.10 gears and ran the quarter again in Y seconds, Y being lower than X. Now all I would like to know is, if the gearing hadnt been changed, how much more hp would be need to get the same delta. Maybe some of you guys have track info from before and after a gear change, if you have times we can figure out the hp.
11-21-2006, 02:21 AM
#27
5th Gear Member
Join Date: Jun 2006
Location: Eureka, Mo
Posts: 4,355
RE: 4.10 gears equivalent hp gain
ORIGINAL: HpOoRwSeEr
^ +1 congratulations to the smart kid. I dont have an answer for the question but at least i got what he was asking!!!
^ +1 congratulations to the smart kid. I dont have an answer for the question but at least i got what he was asking!!!
Nitrous? WTF??? [>:]
11-21-2006, 09:34 AM
#28
4th Gear Member
Join Date: Feb 2004
Location:
Posts: 1,895
RE: 4.10 gears equivalent hp gain
ORIGINAL: ponysnake99
alrighty taking a basic quater mile/hp calc and the rule of thumb: 4.10s lower et by .3-.4 seconds...here you go
a 3500 lb mustang with 400 hp and 3.27s runs the quarter in 12 seconds
a 3500 lb mustang would run approx 11.6-11.7 with 4.10s making hp gain 30-40 flywhel hp
tuh-duh...(in my opinion) its not too accurate, but i think thats more of what your looking for, try comparing times before and aft using some calculator
alrighty taking a basic quater mile/hp calc and the rule of thumb: 4.10s lower et by .3-.4 seconds...here you go
a 3500 lb mustang with 400 hp and 3.27s runs the quarter in 12 seconds
a 3500 lb mustang would run approx 11.6-11.7 with 4.10s making hp gain 30-40 flywhel hp
tuh-duh...(in my opinion) its not too accurate, but i think thats more of what your looking for, try comparing times before and aft using some calculator
11-21-2006, 01:40 PM
#29
Administrator
Join Date: Nov 2002
Location: yep
Posts: 16,186
RE: 4.10 gears equivalent hp gain
i agree that ponysnake did a fine job of explaining, but i dont know if youll see THAT much gain...i went from a 4.10 to a 4.56 and only picked up something like a tenth and a half...
cody, keep your stupid comments out of tech sections, or i WILL ban you.
cody, keep your stupid comments out of tech sections, or i WILL ban you.
