I'd be more concerned about the corrosive properties of the Alcohol Will it's really unkind to Aluminium, I've ran Meth Injection in the past as a bandaid on NA/T type motors I've built where I had limited control over the Ign curve and it worked nicely but it was a bandaid and if something goes...
Mad: Are you putting new rings in?
If so YES our blocks are quite hard and you'll need the honed sharp deges to promote initial ring wear so they seat to the cylinder shape/surfaces or it'll never "seal".
My whole point posting in this thread is why spend the extra if you don't NEED it.........
a: Unless you're a ricer it's covered
b: Even with 2>2.5x the seat pressure of stock springs the normal belt doesn't break
c: The vast majority of 7M owners have the stock RPM limit
Quake: I wouldn't use it for a performance build.....
Worst case scenario and what will probably happen is the crack spreads vertically at the valve seat and the seat falls out under power :(
Depending on how it falls out and gets lodged there's a very good chance of it jamming the valve...
There aren't too many 7M's around that have had more time money care and attention poured into them then mine and trust me if I had to do it over it'd be bye bye 7M hello 2JZ ;)
You can just about use ALL of the 7M electronics on the 2J it doesn't really care it's just a motor so this would keep costs down then it's just plumbing and you end up with a much more capable motor and none of the downsides to the 7M.
I love my 7M it's brilliant but a very tempremental...
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