Quote:
Originally Posted by Andew727
In my opinion the weakest link on these motors are the heads for sure. i snapped a valve spring stuck open the intake valve and dropped a retainer into the cylinder. just holding the stock valve spring in my hand i could fully depress them with my fingers. i replaced the rods with skunk 2 I beams and lowered compression .08 - 1.0 with cosworth head gaskets.
i have the hks gt supercharger kit on 10 psi, bumping her up to 17.
setup:
HKS GT supercharger
HKS S type oil cooler
motoeast e85
fic 660 injectors
dw65c pump
skunk 2 connecting rods
titanium valve springs
headers (no cat)
small pulley
no restrictor plate
|
I in no way am an expert, but I think it makes sense why he thinks rods are weak and you think springs/head is weak. Spring failure is related more to rpm@temp whereas rod failure is more related to pressure(torque)@temp. So if you are running relatively lower boost and high rpm or na you will get failures at springs. But if you are looking for big power rods may fail first.
It makes sense that the springs and rods arent that beefy. They were pushing for max hp number and fuel efficiency at cheap price. Heavy springs are bad for hp and reliability, heavy rods are bad for hp and efficiency.
Quote:
Originally Posted by Sleepless
Edelbrock seems to think their level of boost is safe enough to offer an engine warranty with their kit...
|
A warranty that changes the oem 5 year 60000 to 40% less at 3 years and 36000 miles... If that is what you call "safe". Also void if you go to the track... Road or quarter mile. So " safe" is relative...
Edit: and yes, must be their tune, which is about 240 whp 185wheel tq, which is nowhere near 300whp...