LSD or no LSD
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From: buena park, ca, usa
LSD or no LSD
While looking into my new H22a 5 speed swap, i'm not sure whether it matters to me if I have the LSD tranny or not. I think I am questioning myself because of the lack of knowledge in LSD transmissions, and I'm not sure if I should spend the extra money or not.
My questions are:
Will an LSD noticably effect gas mileage?
Will I notice much of a difference while running an F23 w/ bolt-ons?
I dont know if it will make a huge differnce to me, so I'm trying to find some more insight & opinions on the LSD.
My questions are:
Will an LSD noticably effect gas mileage?
Will I notice much of a difference while running an F23 w/ bolt-ons?
I dont know if it will make a huge differnce to me, so I'm trying to find some more insight & opinions on the LSD.
Honda-Tech Member
Joined: Jan 2004
Posts: 6,456
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From: New England, USA
while looking into my new h22a 5 speed swap, i'm not sure whether it matters to me if i have the lsd tranny or not. I think i am questioning myself because of the lack of knowledge in lsd transmissions, and i'm not sure if i should spend the extra money or not.
My questions are:
Will an lsd noticably effect gas mileage?
no, as long as your foot behaves itself.
will i notice much of a difference while running an f23 w/ bolt-ons?
no. It's sole purpose is to ensure equal power to both front wheels. You WILL notice a difference if the transmission is from an h22 as well. It will have a steeper final drive ratio, which will allow faster acceleration, but have a rpm penalty on the highway (way more revs)
i dont know if it will make a huge differnce to me, so i'm trying to find some more insight & opinions on the lsd.
My questions are:
Will an lsd noticably effect gas mileage?
no, as long as your foot behaves itself.
will i notice much of a difference while running an f23 w/ bolt-ons?
no. It's sole purpose is to ensure equal power to both front wheels. You WILL notice a difference if the transmission is from an h22 as well. It will have a steeper final drive ratio, which will allow faster acceleration, but have a rpm penalty on the highway (way more revs)
i dont know if it will make a huge differnce to me, so i'm trying to find some more insight & opinions on the lsd.
Thread Starter
Honda-Tech Member
Joined: Jun 2007
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From: buena park, ca, usa
You WILL notice a difference if the transmission is from an h22 as well. It will have a steeper final drive ratio, which will allow faster acceleration, but have a rpm penalty on the highway (way more revs)
I was under the impression that the "limited slip diff" was found as a PART of the transmission. Your sentence sounds as though the differential is a seperate part from the tranny. Is this correct?
I was under the impression that the "limited slip diff" was found as a PART of the transmission. Your sentence sounds as though the differential is a seperate part from the tranny. Is this correct?
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Joined: Jan 2004
Posts: 6,456
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From: New England, USA
You WILL notice a difference if the transmission is from an h22 as well. It will have a steeper final drive ratio, which will allow faster acceleration, but have a rpm penalty on the highway (way more revs)
I was under the impression that the "limited slip diff" was found as a PART of the transmission. Your sentence sounds as though the differential is a seperate part from the tranny. Is this correct?
I was under the impression that the "limited slip diff" was found as a PART of the transmission. Your sentence sounds as though the differential is a seperate part from the tranny. Is this correct?
They come in three flavors:
Standard (get stuck in the mud) Type
Limited Slip and
Positraction (or detroit locker for the domestic set)
The "Differencial" portion of this discussion refers to the spool-like assembly which houses the Limited slip components.
The "Final Drive Ratio" portion of this discussion refers to the ring set which is bolted to the afore mentioned spool-like assembly.
You can have any combination of differentials having any manner of Final Drive Ratios
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From: Fontanafredda, IT
Your situation is a mixed blessing.
Having the opportunity to pick up an LSD trans at a price you can afford is great. But I'd recommend considering the impact of the H22's gearing on your car.
The H22 trans has shorter gears, as well as a shorter final drive. This is going to shift your RPM range up considerably. IMO, this poses a problem because the F23 isn't a high revving motor, and so, makes most of its power down low and in the mid range.
H22 has the shortest H/F gears, H23 is taller than H22 gears, but still shorter than the F23 gears which are the tallest of the three.
When I had just a few bolt-ons on my car it made 146whp, about 15-20whp over stock. This is when I swapped an H23 transmission on to replace the F23 5-speed. The shorter gears got me off the line faster, but made it VERY obvious that power on the F23 drops off drastically above 5000rpm. It made downshifting on the highway almost futile, because the engine simply doesn't pull very hard over 5k. Gas mileage suffers when you're forced to cruise at 4,000rpm, and even with the stock exhaust, I was required to pack some headache medicine for anything more than a two hour drive. This was all just with an H23, not the shorter H22 trans.
Now reaching the 170whp mark, a 7,000rpm rev limit, and an F23 5th gear installed to replace the H23 5th gear, the car FINALLY feels comfortable to drive play around with, pulling up to redline nicely on the shorter gears.
I'm sorry to ramble on, but after doing my swap, I just want to heed warning to those considering an H22 trans on a stock F-series motor.
Having the opportunity to pick up an LSD trans at a price you can afford is great. But I'd recommend considering the impact of the H22's gearing on your car.
The H22 trans has shorter gears, as well as a shorter final drive. This is going to shift your RPM range up considerably. IMO, this poses a problem because the F23 isn't a high revving motor, and so, makes most of its power down low and in the mid range.
H22 has the shortest H/F gears, H23 is taller than H22 gears, but still shorter than the F23 gears which are the tallest of the three.
When I had just a few bolt-ons on my car it made 146whp, about 15-20whp over stock. This is when I swapped an H23 transmission on to replace the F23 5-speed. The shorter gears got me off the line faster, but made it VERY obvious that power on the F23 drops off drastically above 5000rpm. It made downshifting on the highway almost futile, because the engine simply doesn't pull very hard over 5k. Gas mileage suffers when you're forced to cruise at 4,000rpm, and even with the stock exhaust, I was required to pack some headache medicine for anything more than a two hour drive. This was all just with an H23, not the shorter H22 trans.
Now reaching the 170whp mark, a 7,000rpm rev limit, and an F23 5th gear installed to replace the H23 5th gear, the car FINALLY feels comfortable to drive play around with, pulling up to redline nicely on the shorter gears.
I'm sorry to ramble on, but after doing my swap, I just want to heed warning to those considering an H22 trans on a stock F-series motor.
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From: New England, USA
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From: Jefferson City, MO, USA
You WILL notice a difference if the transmission is from an h22 as well. It will have a steeper final drive ratio, which will allow faster acceleration, but have a rpm penalty on the highway (way more revs)
I was under the impression that the "limited slip diff" was found as a PART of the transmission. Your sentence sounds as though the differential is a seperate part from the tranny. Is this correct?
I was under the impression that the "limited slip diff" was found as a PART of the transmission. Your sentence sounds as though the differential is a seperate part from the tranny. Is this correct?
:-)
Thread Starter
Honda-Tech Member
Joined: Jun 2007
Posts: 640
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From: buena park, ca, usa
When I had just a few bolt-ons on my car it made 146whp, about 15-20whp over stock. This is when I swapped an H23 transmission on to replace the F23 5-speed. The shorter gears got me off the line faster, but made it VERY obvious that power on the F23 drops off drastically above 5000rpm. It made downshifting on the highway almost futile, because the engine simply doesn't pull very hard over 5k. Gas mileage suffers when you're forced to cruise at 4,000rpm, and even with the stock exhaust, I was required to pack some headache medicine for anything more than a two hour drive. This was all just with an H23, not the shorter H22 trans.
Now reaching the 170whp mark, a 7,000rpm rev limit, and an F23 5th gear installed to replace the H23 5th gear, the car FINALLY feels comfortable to drive play around with, pulling up to redline nicely on the shorter gears.
Now reaching the 170whp mark, a 7,000rpm rev limit, and an F23 5th gear installed to replace the H23 5th gear, the car FINALLY feels comfortable to drive play around with, pulling up to redline nicely on the shorter gears.
Can anyone tell me how their 5 Speed F23 pulls with just bolt-ons? And are there any common problems with the F23 MT?
Can a
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