yes really - reducing the capacity to say 1.4 L
why ?
for racing. I run in up-to 2000cc class and need more power. Found out at the weekend that the class record holder, a BMW 2002 , is a 1.4 turbo running lots of power. You are allowed to run a turbo but the capacity multiplier is 1.4 hence 1400 turbo would be allowed in the up to 2000cc class.
What are the restrictions ? it needs to have a block, or derivative of, that was fitted to some model of the car you run, i.e as fitted to Mk2 ibiza.
If 500hp is possible from a 1900 20VT, then 370-400 should be possible from a 1.4 - not worth doing for less than 400hp
Issues - the block must be able to accept an 02a-type box
If a 1.8T block was used, stroke would have to reduced to 67.91mm (from 86.4) if using the 81mm pistons
If keeping the stock block height (as I dont know what I can be reduced by), rod would have to be lengthened by 18.49mm to 162.49mm.
This would give a rather large rod ratio of 2.39 (stock is 1.66) - some endurance engines are 2.2 but 2.4 might be a bit too much......
If this is too much, a different block would have to be used - but this block has to accept a 02a box and be fitted to an ibiza originally and be a 16V
Of interest is some specs of an engine from a Toleman Hart 184 - this was a 1.45L turbo that made 650hp @ 10.5K back in 1984. This was with a 88mm bore and 61.5mm stroke - not a million miles off a desroked 1.8T............
would love to hear what folks think about this (crackpot?) idea
Ave it
Rob
why ?
for racing. I run in up-to 2000cc class and need more power. Found out at the weekend that the class record holder, a BMW 2002 , is a 1.4 turbo running lots of power. You are allowed to run a turbo but the capacity multiplier is 1.4 hence 1400 turbo would be allowed in the up to 2000cc class.
What are the restrictions ? it needs to have a block, or derivative of, that was fitted to some model of the car you run, i.e as fitted to Mk2 ibiza.
If 500hp is possible from a 1900 20VT, then 370-400 should be possible from a 1.4 - not worth doing for less than 400hp
Issues - the block must be able to accept an 02a-type box
If a 1.8T block was used, stroke would have to reduced to 67.91mm (from 86.4) if using the 81mm pistons
If keeping the stock block height (as I dont know what I can be reduced by), rod would have to be lengthened by 18.49mm to 162.49mm.
This would give a rather large rod ratio of 2.39 (stock is 1.66) - some endurance engines are 2.2 but 2.4 might be a bit too much......
If this is too much, a different block would have to be used - but this block has to accept a 02a box and be fitted to an ibiza originally and be a 16V
Of interest is some specs of an engine from a Toleman Hart 184 - this was a 1.45L turbo that made 650hp @ 10.5K back in 1984. This was with a 88mm bore and 61.5mm stroke - not a million miles off a desroked 1.8T............
would love to hear what folks think about this (crackpot?) idea
Ave it
Rob