Con Rods Gt V Glanza Pix

thefalls

Member +
And which injectors are you talking about?

Rx7 ones?

It is said that they dont have a very good pattern for the 4efte.
 
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Chris@CCM

Member +
At the end of 8 pages and a good few years it's a fact that I've seen shit loads of bent or broken ep91 rods and not one ep82 rod fail make ur own mind up lol ep91 4efte and 4efe rods are the same pos rods
 

Rev

Member +
And which injectors are you talking about? Rx7 ones? It is said that they dont have a very good pattern for the 4efte.

Not rx7 .Can't find my notes on swirl type the issue I think was fuel at the edge igniting early from residual exhaust port gases. Was raising this if someone noticed a particular injector was associated with piston failure in case that could help.
Rx7 injectors is another post really but I think were set deeper in the rx7 block on Starlet are narrower spray entering the chamber and may spray onto top of piston many seem happy with them and get good power.

In terms of this topic Chris has got my attention -
" At the end of 8 pages and a good few years it's a fact that I've seen shit loads of bent or broken ep91 rods and not one ep82 rod fail make ur own mind up lol ep91 4efte and 4efe rods are the same pos rods "
 
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AdamB

Member +
Not rx7 .Can't find my notes on swirl type the issue I think was fuel at the edge igniting early from residual exhaust port gases.

Would that not mean that the timing was out though? Since most cams are designed to have a few degrees of overlap to ensure that all the exhaust gas is evacuated from the cylinder before the next combustion takes place. Or this would be happening at high rpm's where the overlap period is decreased due to the increased rpms so would benefit from longer duration cams.
 

Rev

Member +
Would that not mean that the timing was out though?

What ever the cause , including poor timing residual unburnt fuel can be a preignition factor but in truth there are many factors to consider here. Pehaps I should have said residual heat rather than exhaust gases as I read the residual heat at the exhaust port causes more intense knock compared to when knock occurs at the inlet port.
 
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Skalabala

Member +
What ever the cause , including poor timing residual unburnt fuel can be a preignition factor but in truth there are many factors to consider here. Pehaps I should have said residual heat rather than exhaust gases as I read the residual heat at the exhaust port causes more intense knock compared to when knock occurs at the inlet port.

Yes, that is why there is actually only on way piston rings should be fitted, top ring gap facing intake as far as I remember :D
Keep the discussion going AdamB and Rev :D
 

5e colin

Member +
topic kick ha ha

gt rod / 4efte piston : piston breaks 1st

v rod / 4efte piston : rod breaks first

thats my experiance going true 3 v engines and only 1 gt engine thats now back home in my gt again
 

dark_knight

Member +
since i'm rebuilding and got a GT engine to pick stuff off of, i think i'll go GT rods despite the debate.. because i have a mate who runs a buggy on glanza rods and he (indeed) has buckled his rods a couple of times.. :D
 
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