Im building a 2.4 engine for pavement oval racing the parts will consist of

molner rods
diamond 12to1 horizontal ported pistons
total ap stainless ringset
clevite hardened rod bearings
ati underdriven balancer
supertech .5 mm oversized valves int/exh
arp head studs
zzp 72# springs
balance shaft delete kit
my sleeves

the head will have the casting flash removed and smoothed
the crank will get lightened and the key way extended
the complete rotating assembly will be balanced

I am considering sending the crank here after balancing and lightening Performance Metal Micropolish
the micro polishing will be good for oil shedding







ill update as things progress

 

Ok? is that it?

 

Bragging rights.

 

what bragging rights

 

I've always wanted to see a big N/A build

 

what cams?

 

stock for now

 

Get some cams in that baby

I love how Molner has their LSJ and LE5 rods listed under Chevy Cavalier on their website lol

 

got the crank back we removed 1.5 pounds off of before it was sent out for vibratory polishing



here is the head the exhaust seats were raidiused to increase airflow





casting flash was remove and ports smoothed



head is complete with .5mm valves and zzp 72lb springs



crank key way getting extended



here is the horizontal gas ported pistons before the Teflon coating the pistons are 11.7 on the compression the rings are total seal ap stainless

 

has anybody built a high compression 2.4 n/a yet? wonder how much itd actually push..

 

Well it's already high compression and people are adding boost to them. I'm sure it'd be a snappy, revving, son of a bitch when done.

 

So what are you planning to set the RPM cut off to?

 

lol high compression starts around 12:1 and up.

 

Very cool, what class of car is this for?

 

what ever stock is it dose not need to be any higher

no it dose not 10to1 is still considered high compression

its a pavement oval class up north somewhere and a 17yr old girl races the cobalt it goes in and its a gutted and caged cobalt

 

That's because very few people around here have actually discovered high compression.

 

I doubt that

 

Local Honda guys run 12:1 on street car setups, the race cars are 14-15+. But for a street car without DI a 10:1 is pretty good. Most cars are creeping into the 11-12:1 range now with the proliferation of direction injection.

 

The LE5 is already 10.5:1 if I'm not mistaken.

 

10.4:1 according to the manual but might as well be 10.5:1, a relatively common compression for all motor high performance engines for over 30 years with the invention of premium fuel and electronic ignition.

 

lol

 

Sub'd. This should be good.

 

pistons in

 

Very nice build. Looking forward to the end result

 

Lookin good home slice