Opinions needed: K20R Euro Accord R. Should I rebuild, or should I go for a K20/K24?
#1
Opinions needed: K20R Euro Accord R. Should I rebuild, or should I go for a K20/K24?
Hi guys, I drive a Honda Accord Euro R and I recently wrecked my red top type R engine (spun bearing). I now have a K20A base engine in my car. I still have the red top of my type r engine and I want to know If i should go Frank K20/24 or should I put the type r head on the base engine block?
#3
Honda-Tech Member
Re: Opinions needed: K20R Euro Accord R. Should I rebuild, or should I go for a K20/K
K24A2 block with pinned VTC gear, put the head on, and tune.
#4
Honda-Tech Member
#6
Re: Opinions needed: K20R Euro Accord R. Should I rebuild, or should I go for a K20/K
Found this:
So: limiting cam advance. But I'm not a tuner, and have yet to look into building my K anyway (still stuck in the '90s with my H), so I'm still unsure of why that's something you'd worry about.
The TracTuff VTC Limiter is yet another innovative product that was designed with the average consumer in mind! We wanted to offer a cost effective solution for limiting how much cam advance your motor see's, once clearances have been confirmed, and what we ended up with... is undoubtedly the easiest way to limit cam advance.
We assume that most K series engine owners own a 50° intake cam gear... so it made sense to limit the 50° gear rather than ask customers to go through the trouble of finding a 25° TSX gear and have it modified. The process is tedious, as you must find/ buy a 25° RBB gear a, pay to have it shipped, find a capable machine shop to handle the modification, ship it to them, pay them their fee, and ultimately pay for the return freight. Sounds expensive! and not to mention a total headache and a major inconvenience.
Our VTC Limiter is manufactured from precision ground 52100 Bearing Steel and finished to exacting tolerances (+/- .0001") and then heat treated to a hardness of 60-62 Rockwell C. The limiter works by placing the pin in a specific cavity of the VTC gear, where it can float freely, ultimately limiting the amount of advance the motor sees... regardless of what the map/ tune calls for. Please note that it is not needed but if you have any concern with the pin floating freely you may have the pin tacked in place once you have confirmed your engines specific clearances.
https://tractuff.com/products/tractuff-vtc-limiter
We assume that most K series engine owners own a 50° intake cam gear... so it made sense to limit the 50° gear rather than ask customers to go through the trouble of finding a 25° TSX gear and have it modified. The process is tedious, as you must find/ buy a 25° RBB gear a, pay to have it shipped, find a capable machine shop to handle the modification, ship it to them, pay them their fee, and ultimately pay for the return freight. Sounds expensive! and not to mention a total headache and a major inconvenience.
Our VTC Limiter is manufactured from precision ground 52100 Bearing Steel and finished to exacting tolerances (+/- .0001") and then heat treated to a hardness of 60-62 Rockwell C. The limiter works by placing the pin in a specific cavity of the VTC gear, where it can float freely, ultimately limiting the amount of advance the motor sees... regardless of what the map/ tune calls for. Please note that it is not needed but if you have any concern with the pin floating freely you may have the pin tacked in place once you have confirmed your engines specific clearances.
https://tractuff.com/products/tractuff-vtc-limiter
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#8
I like the tuna here
Re: Opinions needed: K20R Euro Accord R. Should I rebuild, or should I go for a K20/K
I've been reading up on it a little bit and *I think* it's more for high comp motors to limit issues with P2V interference. Something about the valve pockets being different than on b-series, idk. I've been trying to learn about the K-series, but the forum here is pretty dead and k20a.org has a lot of people viewing but not a lot of direct information that I've found.
#9
Moderator
iTrader: (14)
Re: Opinions needed: K20R Euro Accord R. Should I rebuild, or should I go for a K20/K
I've been reading up on it a little bit and *I think* it's more for high comp motors to limit issues with P2V interference. Something about the valve pockets being different than on b-series, idk. I've been trying to learn about the K-series, but the forum here is pretty dead and k20a.org has a lot of people viewing but not a lot of direct information that I've found.
#10
Honda-Tech Member
Re: Opinions needed: K20R Euro Accord R. Should I rebuild, or should I go for a K20/K
I've been reading up on it a little bit and *I think* it's more for high comp motors to limit issues with P2V interference. Something about the valve pockets being different than on b-series, idk. I've been trying to learn about the K-series, but the forum here is pretty dead and k20a.org has a lot of people viewing but not a lot of direct information that I've found.
#11
Moderator
iTrader: (14)
Re: Opinions needed: K20R Euro Accord R. Should I rebuild, or should I go for a K20/K
Limiting VTC travel mechanically is a great idea when valve-to-piston contact exists... if you install the K20A Type R cylinder head on the BASE K20 block, you will need to limit VTC travel because of P2V interference. If you use a TSX shortblock, no VTC travel limitation exists, so a mechanical limiter would not be necessary.
#12
Honda-Tech Member
Re: Opinions needed: K20R Euro Accord R. Should I rebuild, or should I go for a K20/K
You will not see the 50 degree VTC during claying the engine, unless you lock the VTC gear there. Kind of a pain. Just use the pin above to limit the VTC degrees. The R&D has already been done, decade old and no need to question it.
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