Performance difference between these setups? - Honda Prelude Forum

F the H · 07-23-2010, 07:12 PM

Okay, what would be the performance difference in these setups 1/4 time wise?

I have an F20B that was attached to automatic, and it is being mated to my M2Y4 from my Prelude.

Shop called and said they have a full F20B swap, and could do a tradeback on the F20B they have for me, plus I have the H22 trans from my car.

Obviously I'm going to make it as close as possible to a trade as posible. They already list the swap as $2000 which is about $1400 less than I see a full manual F20B go for on ebay.

If I have to pony-up, what's the max should I expect to do?

The gains over my current setup would be 20HP, shorter gears, and LSD. Would it make much difference in a Prelude?

mortifiedvictim · 07-26-2010, 01:34 PM

I can see no one has posted on your thread and its been a couple days but I think I can see why.

1st)
I guess I could see the point of a F20B swap into an older prelude but in a 5th gen seems silly to me (unless you want to go turbo and don't want to fool with FRM)

2)
DOHC F20B is 154HP 137tq, where H22A is 197hp and 161tq. So where are you getting the 20HP gain from?

Maybe I am misunderstanding something here. I know you posted in the right section and have a 5th Gen prelude (probably had a H22A4 in there) because you have a M2Y4 transmission (same as mine in my 5th gen base).

Also, are you making this a track car or daily driver? If it's a DD shorter gears don't sounds good to me because thats less MPG. Anytime someone asked to mate a F-series trans to H2X the well-versed honda guys pop up and call them an idiot.

Edit: I did find out that the JDM 96-00 Honda Accord Si-R has a F20B w/ 200hp 144tq, my bad for mis-speccing that. Here is a list I pulled from another forum:

The F20A is JDM from the 90-93 Accord Si..its a DOHC non-vtec that puts out 155hp@6100

The F20B is a SOHC VTEC that puts out 150hp

The F20B1 is a DOHC VTEC that comes from the 90-93 JDM Accord Si-R and puts out 190hp

The F20B2 puts out 200hp and is a DOHC VTEC from a 94-97 JDM Accord Si-R

The F20C1 is from the S2000, puts out 240hp@8300 and is a DOHC VTEC

The F22A comes from the 93 Accord and is a SOHC non-vtec putting out 125hp@5200

The F22A1 powers 135hp@5200 is a DOHC non-vtec and comes from 92-96 Prelude S

The F22A4 and A6 are both SOHC non-vtecs and power between 130-140hp, the come from the 90-91 or 92-93 Accord

The F22B is a DOHC non-vtec with 160hp@6000 coming from a 92-96 Prelude Si

The F22B1 has only 145hp@5500, its a SOHC VTEC from the 94-97 Accord EX

The F22B2 comes from the Accord DX/LX and is a SOHC non-vtec powering just 130hp@5300

The F23A1 is a SOHC VTEC from a 98+ Accord EX/LX or CL (98-99) with 150hp..the A4 has 148hp and the A5 only has 135hp

F the H · 07-26-2010, 02:15 PM

You have mass of those wrong.

There is no 90-93 Accord SiR. Only a 2.0Si with a 150HP F20A

The 94-97 Accord SiR is H22A

Prelude S 4th gen would be a F22A6 and SOHC.

The F20B in question is the DOHC VTEC 98+ Accord SiR and SiR-T. In auto form it is 180HP, in manual form it is 200HP. I just found out that the T2T4 has the same gearing 1-4 as my M2Y4, so I'm not interested, even for the LSD.

Thanks for the try.

Kronn 98SH · 07-26-2010, 03:36 PM

It seems you both need a dose of Kronn-data.

The 4G Prelude came with the F20A4, F22A1, F22A2, and F22B. The USDM Prelude S came with the F22A1, as did many many many different Accords.

The F22A6 is an Accord engine used in many different trims, but never a Prelude.

I've never seen or heard of an F20B2, but there is an F20B3 and F20B6. Both are European only. If it has a number after the second letter, it's not JDM.

Lastly, if you just search my name, you'll find all the data you could want on most this stuff.

mortifiedvictim · 07-26-2010, 04:40 PM

Thanks Kronn and OP, sorry for re-posting someone elses misinformation.

Back to main question though, OP wants to know what his gains are going from a H22A4 to a F20B. I still see a loss, not gains.

Kronn 98SH · 07-26-2010, 05:49 PM

OP wants to know the gains between the T2T4 and the M2Y4, as he already has the F20B engine. However, you are correct. There is only a loss when downgrading to the F20B. The only logical reason for doing this would be turbo.