stroker?????
- Thread starter 917mgte
- Start date
correct me if im wrong... but I think with the stock bore/stroke... the engine is prrreeetttyyy close to the safe piston speed limit where things start to come apart when on the rev limiter... so increasing stroke would mean to keep things safe... a decrease in rev limit (I could be wrong on this... )
Personally... I dont think its worth it... and the money could be spent in better areas...
Just my opinion
-AcId-
Personally... I dont think its worth it... and the money could be spent in better areas...
Just my opinion
-AcId-
Unless you're going for broke for a crazy car, money is better spent elsewhere...
It's not dangerous as if you're spending that much on the kit you're going to take the time to get everything balanced far better than a stock motor.
It's not dangerous as if you're spending that much on the kit you're going to take the time to get everything balanced far better than a stock motor.
dubsupra209;1512268 said:
on a stock engine..
power should increase exponentially as you start modding..
compare a 1J and a 2J
edit:
not bad at all...
Yep, not saying it's not worthwhile, but it depends on your goals. Much like cams on a stock car are a waste of money.
Poodles;1512276 said:
+ much stronger pistons and rods that can take the extra stresses. And one of the biggest benefits to a stroker that has not been brought up yet is it will spool an enourmous turbo and make even more power doing it
http://www.supramania.com/forums/showthread.php?99651-7M-stroker-build/page8&highlight=7mgte+stroker
post 149.
you end up having to shave the oil pump drive shaft so it doesnt hit the rod and his ended up snapping.
IJ didn't you have to do this on your 7m also because of the high rpms?
post 149.
you end up having to shave the oil pump drive shaft so it doesnt hit the rod and his ended up snapping.
IJ didn't you have to do this on your 7m also because of the high rpms?
Poodles;1512293 said:
*BZZZ
I call BS
"Much like cams on a stock SUPRA are a waste of money"
There are many cases where a cam upgrade is a decent idea from the start.
The 7M is no where near max RPM at the stock limiter rpm.
When looking at the max piston accelleration (the point that the most shock is induced on the rods, piston and rings),
The stock 7M doesn't hit the accepted standard (140,000 ft/sec/sec) until 8350rpm.
So a stroked engine should live just fine at 7000.
Personally, I don't like the stroker idea on the 7M, and am destroking mine, because a 4-valve engine comes into it's own at higher rpm.
Example, the HKS MkIII drag car (a sub-8 second car back in the '90s) had a destroked crank, and turned into the 9k range.
I just wish I could find another of the short stroke cranks, so I could do it to my NA also.
When looking at the max piston accelleration (the point that the most shock is induced on the rods, piston and rings),
The stock 7M doesn't hit the accepted standard (140,000 ft/sec/sec) until 8350rpm.
So a stroked engine should live just fine at 7000.
Personally, I don't like the stroker idea on the 7M, and am destroking mine, because a 4-valve engine comes into it's own at higher rpm.
Example, the HKS MkIII drag car (a sub-8 second car back in the '90s) had a destroked crank, and turned into the 9k range.
I just wish I could find another of the short stroke cranks, so I could do it to my NA also.
George - I will make you a de-stroke crank if you want one.
The malta dragster spins the 7m to nearly 10k rpm with out problems. A stoker crank can be of all different lenghts, so the max rpm of the stroker kit also depends on the lenght of the stroke. Can't lump all stroker kits into one pile. Ask Valadimir in the Ukraine how he liked his stroker kit..
To fix the oil shaft problem you just use a dry sump system. Problem solved.
The malta dragster spins the 7m to nearly 10k rpm with out problems. A stoker crank can be of all different lenghts, so the max rpm of the stroker kit also depends on the lenght of the stroke. Can't lump all stroker kits into one pile. Ask Valadimir in the Ukraine how he liked his stroker kit..
To fix the oil shaft problem you just use a dry sump system. Problem solved.