1987 si needs help
Joined: Sep 2002
Posts: 2
Likes: 0
From: Columbus, Ohio, USA
Long live the 86!
http://www.hondaprelude.com is down 
If he wants to have the same short gearing he needs: A2K5 out of an 86-87 PGMFI 3rd Gen Prelude. Being that those cars and parts for them are rare your best bet is a A2Q5 from an Accord LX-i. The final drive is slightly wider and is better for highway scooting and gas mileage. Actually 1st & 2nd are the same. With the accord tranny I was able to shift at 90mph in 3rd whereas roughly 80mph with the original. 115-*120mph(once)A2K5 -vs- Consistant 125mph A2Q5
Experiments: I am not completely sure but whatever;
A tranny out of a Carb prelude (1.8 not 2.0Si) should work with a few misc parts.
1. 1.8 tranny (A1Bsomething)
2. 1.8 Flywheel Clutch assembly etc.
cables, speedo **** like that I have no idea.
I am also not sure if the bolt pattern is the same which is needed for the whole thing to work. If it is nooch.
Being that the flywheel and all of the goodies are smaller and lighter you should, in theory , have quicker revs
A2K5=A2 is the family I guess. K represents Prelude. 5 Is fuel injected I guess
A2K5-Ideal
A2Q5-Good enough
A2K6, A2Q6- Auto
The one that was in my car ran $150 form a U-pull-it yard
Swaps: $$$$$.....$ seen a H22 done:1925lbs w/driver 12.51sec all motor
11.25sec Wiff Boost
Turbo 1.8 13.996 ripped his tranny to pieces
Wee first post!
Ok I'm done
If he wants to have the same short gearing he needs: A2K5 out of an 86-87 PGMFI 3rd Gen Prelude. Being that those cars and parts for them are rare your best bet is a A2Q5 from an Accord LX-i. The final drive is slightly wider and is better for highway scooting and gas mileage. Actually 1st & 2nd are the same. With the accord tranny I was able to shift at 90mph in 3rd whereas roughly 80mph with the original. 115-*120mph(once)A2K5 -vs- Consistant 125mph A2Q5
Experiments: I am not completely sure but whatever;
A tranny out of a Carb prelude (1.8 not 2.0Si) should work with a few misc parts.
1. 1.8 tranny (A1Bsomething)
2. 1.8 Flywheel Clutch assembly etc.
cables, speedo **** like that I have no idea.
I am also not sure if the bolt pattern is the same which is needed for the whole thing to work. If it is nooch.
Being that the flywheel and all of the goodies are smaller and lighter you should, in theory , have quicker revs
A2K5=A2 is the family I guess. K represents Prelude. 5 Is fuel injected I guess
A2K5-Ideal
A2Q5-Good enough
A2K6, A2Q6- Auto
The one that was in my car ran $150 form a U-pull-it yard
Swaps: $$$$$.....$ seen a H22 done:1925lbs w/driver 12.51sec all motor
11.25sec Wiff Boost
Turbo 1.8 13.996 ripped his tranny to pieces
Wee first post!Ok I'm done
Joined: Jan 2002
Posts: 290
Likes: 0
From: Around, Va
Re: Long live the 86! (NKhogKneeGrow)
http://www.hondaprelude.com is down
If he wants to have the same short gearing he needs: A2K5 out of an 86-87 PGMFI 3rd Gen Prelude. Being that those cars and parts for them are rare your best bet is a A2Q5 from an Accord LX-i. The final drive is slightly wider and is better for highway scooting and gas mileage. Actually 1st & 2nd are the same. With the accord tranny I was able to shift at 90mph in 3rd whereas roughly 80mph with the original. 115-*120mph(once)A2K5 -vs- Consistant 125mph A2Q5
Experiments: I am not completely sure but whatever;
A tranny out of a Carb prelude (1.8 not 2.0Si) should work with a few misc parts.
1. 1.8 tranny (A1Bsomething)
2. 1.8 Flywheel Clutch assembly etc.
cables, speedo **** like that I have no idea.
I am also not sure if the bolt pattern is the same which is needed for the whole thing to work. If it is nooch.
Being that the flywheel and all of the goodies are smaller and lighter you should, in theory , have quicker revs
A2K5=A2 is the family I guess. K represents Prelude. 5 Is fuel injected I guess
A2K5-Ideal
A2Q5-Good enough
A2K6, A2Q6- Auto
The one that was in my car ran $150 form a U-pull-it yard
Swaps: $$$$$.....$ seen a H22 done:1925lbs w/driver 12.51sec all motor
11.25sec Wiff Boost
Turbo 1.8 13.996 ripped his tranny to pieces Wee first post!
Ok I'm done
If he wants to have the same short gearing he needs: A2K5 out of an 86-87 PGMFI 3rd Gen Prelude. Being that those cars and parts for them are rare your best bet is a A2Q5 from an Accord LX-i. The final drive is slightly wider and is better for highway scooting and gas mileage. Actually 1st & 2nd are the same. With the accord tranny I was able to shift at 90mph in 3rd whereas roughly 80mph with the original. 115-*120mph(once)A2K5 -vs- Consistant 125mph A2Q5
Experiments: I am not completely sure but whatever;
A tranny out of a Carb prelude (1.8 not 2.0Si) should work with a few misc parts.
1. 1.8 tranny (A1Bsomething)
2. 1.8 Flywheel Clutch assembly etc.
cables, speedo **** like that I have no idea.
I am also not sure if the bolt pattern is the same which is needed for the whole thing to work. If it is nooch.
Being that the flywheel and all of the goodies are smaller and lighter you should, in theory , have quicker revs
A2K5=A2 is the family I guess. K represents Prelude. 5 Is fuel injected I guess
A2K5-Ideal
A2Q5-Good enough
A2K6, A2Q6- Auto
The one that was in my car ran $150 form a U-pull-it yard
Swaps: $$$$$.....$ seen a H22 done:1925lbs w/driver 12.51sec all motor
11.25sec Wiff Boost
Turbo 1.8 13.996 ripped his tranny to pieces
Wee first post!Ok I'm done
http://www.honda-prelude.com
Si trannys are always geared closer.....
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