Reducing 5E cc
- Thread starter Gord R
- Start date
dont think you can resleeve them blocks
dac69er
Super Moderator
you should be able too if he is downsizing the bore anyway. i think resleeving to stock size on a 4e, for example, isnt possible due to the wall between the cylinders being so small.
im not sure how much he has to play with so couldnt say 100%, but it may be ok. worth a look to see anyway
im not sure how much he has to play with so couldnt say 100%, but it may be ok. worth a look to see anyway
Rob H
Member +
you can have the bores over bored then sleeved down to the size you require the engine shop we use for the truck engines does this when the blocks are worn on solid blocks (ones with out liners) I know it works well on trucks but there is a lot more there to bore out unlike the starlet. I could work but how reliable it would be is a different matter.
Won't do anything to the cc. Come now buddy did you not get your coffee this morning
Just joking buddy
HYBRID
Super Moderator <a href="http://www.toyotagtturbo.
Won't do anything to the cc. Come now buddy did you not get your coffee this morning
Just joking buddy
lol good point... i wasnt thinking this morning, when i wrote this... what i meant was deck the block, lower the gudgeon pin pint, ie get custom rods made up that fit the 5e but which will be shorter, (probably about half the size difference between 4e and 5e rod).. that way you would have decreased the stroke, whilst only decreasing the block size slightly to accomodate for the new piston height as ull have a much longer piston instead... it should effectively lower the cc just by getting custom pistons and rods with minimal block work...
hope that makes more sense lol
kon
Changing the distance between the big end centreline and small end centreline will adjust the stroke length, but the deck of the block will have to be reduced or the piston deck will have to be taller to allow the piston to reach tdc.
I do agree that it is a lot of money to throw at, but if you wanna be competitve in competition you have to spend the money and advance.
I do agree that it is a lot of money to throw at, but if you wanna be competitve in competition you have to spend the money and advance.
dac69er
Super Moderator
it cannot without a new crank. you will just be moving the position of the piston in relation to the crank, so the cranks offset from centre needs to be increased to increase the stroke.
the overall stroke length would be increased if you fitted longer rods for example, but what you gain in distance up the top you loose down the bottom of the overall stroke.
