When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I am starting on my 5 speed swap for my 97 Prelude and I want to use an AP1 Master cyl. I installed this setup in my Accord last year and never ended up adding fluid or driving the car since.
The only issue is with the Push rod, its much shorter on the AP1 setup. When I installed it on the Accord I went the "Janky" way and just added an extension to it. This time around I want to try to do it a little cleaner. I tried swapping the Prelude/Accord master push rod but its a little too long. I ended up using the spacer that I got with the blox kit(The kit was for a civic). Its close but I still don't have enough adjustment to connect it to the pedal. Looks like I'm about 1 inch too long and I'm guessing with the AP1 rod I'm .5 inch too short.(yes I know I'm asking for it but I don't have an alternate phrasing.)
It looks like the stock Prelude/Accord one is 4 inches. I think 3 inches with at least 10-12cm of thread will put me in the right range with some adjustment. Anyone have any ideas on what push rod may have the length I need? I wish I had a civic one laying around so I could check. I was looking at the Wilwood site and it does look like some of the applications there use an extender, I want to try to avoid that but I may be stuck.
Well after looking around some more there are quite a few universal kits out there but I really don't want to use a 2 piece design if I can help it, I could do that already with what I have here. I went ahead an ordered a new Exedy Civic Master from amazon and it will be here tomorrow. It was only 20$. The one in my wifes civic is starting to leak a bit so it wont hurt to have one laying around. I have no clue what size it is, I'm pretty sure its shorter than the Prelude/Accord one but I'm not sure where it stacks up with the AP1. Guess we will find out.
Just a note, I am actively trying to add some additional threads to a Accord/Prelude one with my tap die set but it much be made of vibranium or something.
Here are a few additional pics for reference. Without spacer With Spacer. Super close. I could install it but the master would be slightly compressed so no good.
Plan B. Ill have to do some trimming to make sure I get enough threads to be adjustable but I hope to avoid doing it this way again. 2 Piece, or would you say 5 piece.
Being impatient... I ordered a second spacer. I think with a Second spacer, assuming the studs are long enough still, and using the Prelude/Accord Push rod ill be in good shape. Its super close already. Still taking suggestions if you have any.
Well I got the new Master and the spacer in, that was quick, gota love amazon. The Civic Master push rod is exactly the same length so it wont help. I think using the second spacer will get things lined up nicely.
Just a follow up. Got everything installed. It was a little tough getting the hardware connected keeping the Master in and the pedal flush against the firewall in the small space under the dash but it did go in with a few threads to spare. I was concerned at first since the pedal hit the floor without the master being fully bottomed out but i was able to adjust it and bring it up, ill play with the engagement point once i have done the swap. At this time it looks like we will be good to go.
Update.
The 2 spacers and Accord Rod on the S2000 master ended up being too long. It works but the clutch is just barely slipping. The engagement point is super high so there is a lot of room to make changes.
Ludeskillz. Do a search on G22/G23 hybrid setups and you may find an answer. I know there are plenty of guys mixing f22 bottom ends with H22 heads. I honestly think it will fit fine but you will need to search for what rod/crank/piston setup will work. I have never done it so I don't know the details.
Ok so I definitely over thought this solution. No spacers, no special rods were required. The S2000 AP1 Master is a direct replacement for the Prelude. I do have the rod basically maxed out but it sits in the perfect position. I think if the rod was a little longer it would be preferable for adjustment purposes but with a very quick test drive it felt perfect. (sigh.... I don't know how to discuss this without leaving myself open for jokes so I guess it just is what it is. lol)
Guess I wasted like $40 in spacers and such but whatever. I'm sure ill use them in the future.
Yeah, I know of the Frankenstein build, but that's a whole f22 bottom end with h top. I wanna keep everything h except for the crankshaft. I don't wanna buy one at the moment. There asking for too much. And I just happen to have one laying around from a f22b2.
09-21-2017, 10:35 AM
AP1 Master Cyl in 97 Prelude. Pushrod help
