sandman

iTrader: (4)

pretty sure its the same. Le5 also has an exhaust position sensor

Slowbalt2000

iTrader: (1)

Yeah i wont need that

Slowbalt2000

iTrader: (1)

Im gonna try heat treating stock l61 rods to see if i can get some hardness out of them. Hopefully i see some good improvements

ECaulk

iTrader: (6)

I'm hoping you're not just taking a torch to them. If you can find out the alloy/grade used for the rods you can look up (or should be able to locate) correct heat treatment steps to get increased hardness without making it brittle.

Slowbalt2000

iTrader: (1)

I know what im doing lol. Theyre made of 1019 so theyre barely hardenable but it will still work. I just dont think the oven in the machine shop will be able to austinetize the steel... We will see. Otherwise yes i will flame harden them haha

Slowbalt2000

iTrader: (1)

I wont be using the l61 rods anyway. I just wanna see what i can make them hold lol

And if i can increase the hardness a good amount

ECaulk

iTrader: (6)

Find out if the chemistry department has a muffle furnace, that will get you to temps for austinetize the steel and you'll be able to control the cooling to ensure correct formation of the steel

riceburner

iTrader: (66)

Bake pistons at 475° for 45 minutes then add seasoning sauce.

sandman

iTrader: (4)

And then cool it down all the way to cryogenic temps

Slowbalt2000

iTrader: (1)

Its a low carbon low alloy steel so im pretty sure i have to cool it within 10 seconds to form martensite. Which i can almost guarantee it will crack or warp. We'll see

sandman

iTrader: (4)

I wrote a paper on cryotreatment. Do it!

Slowbalt2000

iTrader: (1)

Cryo has been debated back and forth as to whether or not its real. I know i can transformation harden steel. Cryo is a waste of money for stock l61 rods.

sandman

iTrader: (4)

Cryo is real and it allows for a more complete transformation into martensite but this has to be during the initial cooling process of the heat treatment.

I think some of that debate is just random ass cryo treatment. It doesn't do **** if you just cryo treat it from room temp. from looking at fmsr and I noticed they have the option to cryo treat everything but it wouldn't do anything for the **** that they sell (if they even sell anything) because they'd have to make it a full heat treatment process.

Slowbalt2000

iTrader: (1)

I dont really have that ability anyways

Slowbalt2000

iTrader: (1)

Le5 acquired

Slowbalt2000

iTrader: (1)

I have been making some progress. Mostly machining the turbine housing and manifold to be single scroll instead of twin. The engine will be going in this week and many more pictures will be added.

Slowbalt2000

iTrader: (1)

Ported exhaust mani? Cool.



Thanks to ARM for the idea on this.



Little Bit of pitting on one lobe of the new engine...Hopefully no problems here



Motor is ready to go in, just waiting on a couple small things like gaskets and bolts. Decided to use the 2.4 head so we will see how that goes. All of my 2.2 headwork will be saved for another project. Cleaned out all the ports and the intake and TB, also powercoated the VC and swapped over the clutch and thermostat housing.

Dipped_Cobalt

Good job.

Slowbalt2000

iTrader: (1)

This is the turbine housing



And here is the difference between l61 and le5 cams

ECaulk

iTrader: (6)

I take you wanted the boost to come in a little smoother?

riceburner

iTrader: (66)

So its s 2.4 everything?

Slowbalt2000

iTrader: (1)

slower spool, more top end.

Slowbalt2000

iTrader: (1)

so at this point im kinda confused. the pontiac g6 used the e37 ecu with the vvt 2.4 and the part number between the pontiac cam and the cobalt/hhr cam is the same. but the cobalt/hhr use the e67 ecu. So why is the reluctor clocked differently??

Slowbalt2000

iTrader: (1)

Is there a definitive way to know if the bs delete is in all the way? Doesnt seem to want to go in any more but it doesnt seem all the way in to me.

Slowbalt2000

iTrader: (1)

Never mind i think theyre in now