posted August 27, 2002 08:30 PM
I run a 84 toyota celica mini stock. It has a totally stock 22R with tune port fuel inj. I rebuilt the engine the way it came in the car (open chamber hear, pistons with a small crown). I figured if that's the way it came, at least it should run decent. And it does run pretty good. Now alot of people in this class are modifying the engines and I am falling behind. I have a later model F.I. head (closed chamber) I need to know if it will work with the early pistons. I think the crown on the pistons will hit the quench portion of the chamber. I have also heard that the hot ticket is to run the 20R head. I know the head is shorter and I am pretty sure you need to run the 20R timing cover and timing assembly. Has anybody done this and is it worth it to me to put a 20R head and a carb. on my 22R. Or am I better off with the fuel Inj. with the 22R head?
Thank's for any help...Chuck
RacnSooner Dirt Full Roller
Total posts: 39
posted August 27, 2002 10:40 PM
i run a toyota.....22r bottom end and 20 r top end.....it is the only way to go....much faster than a straight 22r..that is just my 2 cents worth........but most guys running the toyo are running this same combination
JDPRACING Dirt Roller
Total posts: 14
posted August 28, 2002 01:25 AM
I have a friend running the 22RE block with 22R lowerend & 20R head.I think the reason was .190" deck hieght differance.The pistons come above deck for about a 12 to 1 comp.
YotaRacer Dirt Full Roller
Total posts: 29
posted September 06, 2002 11:12 PM
I have both a 22R and a 22RE with 20R heads. The key is to get the valves upped in size. I use the 22R balves in the 20 head. You have to have new valve seats installed but it lets them breath. The later(old)model open chamber heads do not work on the newer engines you actually lose compression. As for the carb vs fuel injection I am not much help. I personally run a carb just so I can run at differnt tracks that do not allow fuel injection. Check out LC ENGINEERING's web page they are real good with the toy motors. Also SE toyo racing is pretty decent and he has got a great background in setup for both engine and chassis. Just remember if you cant get through the corners fast you loose time down the straights.