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22R To turbo or not to turbo, that is the question
Posted: Tue Jan 20, 2015 3:16 pm
by Carel20
Hi everyone.
My first post and already I want to ask a question.
I have a YN with 22R. I am looking for a bit of extra power.
I have a Weber with branch and freeflow but the 33'' tyres are draining the power.
I am undecided between engine swop or to turbo the 22R.
A.)I am worried about the reliability if I do not change pistons(200k on the clock).
B.)Engine swop, I am worried about reliability and value lost.
Re: 22R To turbo or not to turbo, that is the question
Posted: Tue Jan 20, 2015 3:22 pm
by zepplin
Both will cause losses in reliability & value. Lose the 33's, go back to 31's and enjoy!
Re: 22R To turbo or not to turbo, that is the question
Posted: Tue Jan 20, 2015 4:23 pm
by Mr_B
Know of 2 22R turbo conversions... both are extremely problematic... turbo is a bugger when driving obstacles offroad!
What about EFi... EFi manifolds are scarce for that engine, but at least it's a very reliable option!
Re: 22R To turbo or not to turbo, that is the question
Posted: Tue Jan 20, 2015 4:50 pm
by Carel20
Mr_B wrote:Know of 2 22R turbo conversions... both are extremely problematic... turbo is a bugger when driving obstacles offroad!
What about EFi... EFi manifolds are scarce for that engine, but at least it's a very reliable option!
Will EFI actually improve power?
Re: 22R To turbo or not to turbo, that is the question
Posted: Tue Jan 20, 2015 6:07 pm
by Mr_B
If done right, yes! I made 2 mods to my standard 4Y 65kw motor... cam modification and efi... ended up at 92kw!
Go take a look at the dynocharts page for the results guys get with the 22R!
Re: 22R To turbo or not to turbo, that is the question
Posted: Wed Jan 21, 2015 6:35 am
by scunick
To make a turbo modification work reliably you have to effectively start at the bottom end of the motor and move to the fuel tank replacing parts as you go. In this case you would need to change your compression ratio to something more turbo friendly, which in turn reduces power off boost, valves and cams need upgrading, carb jetting (if you stay on carbs) /injectors need upgrading, coil will need upgrading, fuel pump needs to be upgraded, if you are going to do any type of G's or extreme angles then a swirl tank/surge tank is necessary. Management and tuning need to be addressed and if you stay carb'ed then your fuel consumption will be problematic.
Then you need to take into account the drivetrain upgrades that are required to deal with the extra power.
Best option is to chose a motor that "out the box" meets your requirements, then source one, including loom and ECU, and look at a transplant from there. If you are making significantly more power than currently you will still need to address the drivetrain to make the car safe and reliable.
HTH
Cheers
Nick
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