I am sorry. I thought this thread was about the ecotec...

Sorry for the confusion.

 

it is but the op said that hondas could run high compression on 91 when it was brought up he would need meth to run high compression on an ecotec.

so the thread is still about the ecotec just referencing the reasons why hondas CAN do it and ecotecs will have trouble

 

Increase intake flow will reduce cylinder pressure? I'd love you to find an article supporting that statement or even define your meaning of cylinder pressure. If anything the more the intake ports flow the more air that will fill the cylinder, INCREASING cylinder pressures.

Cylinder pressures have more to do with cam timing than intake port flow, which like I said goes back to dynamic compression.

You then get into exhaust scavaging and the effects that has on the air flow into the cylinders.

Also, aside from the JDM Type-R B18 and the K20 series Honda doesn't have anything that has a higher compression ratio than a stock LE5 (10.4:1).

The only thing Honda's have over the L61 and LE5 is a much more desirerable Rod Ratio, which only applies to cylinder side wall loadings at high RPM and power loss at high RPM.


All that being said, it still has nothing to do with the ability to run a high compression ratio on 91 octane.


BACK ON TOPIC.

 

is there any reason you dont want to run meth?

 

whoa whoa whoa, why would I be derailing his thread? I actually find this thread extremely interesting and intriguing. I was merely trying to help back up the statement said above as to why honda's run higher compression. Hell, I thought it was known that our head design isn't the best and that honda heads flow superior to ours.

 

wow....

 

I don't wanna run meth because I don't think it will be nessacary. Its money I don't need to spend, if I run into issues I'll figure something out then, I'm nearly 100% positive it will be fine tho.

I still don't see how that directly effects the motors ability to run higher compression tho.



Regardless, some small updates:

Valve Cover is in the mail.
Cam Caps are in the mail.
N2MB WOT box has shown up.
Head is still being worked on.
Header is still being worked on.

Gonna order in some pieces of the puzzle this week......hoping to have this thing running by the end of April, early May.

 

Bates Engineering (GMR) Hardened Oil Pump Gears in the mail.

 

Subscribed. But for the thinner head gasket - mine (LE5 bottom/L61 head) is running fine on 93. Actually, i fully expect to be able to tune it on less octane than that, sacrificing some advance of course. Not ideal but it can be done...

Ninja edit: why no progress thread on JBO?? The eco guys need these innovations to quiet the quad/tc guys

 

Hey man! I was wondering when you would find this.

I was waiting for some more parts before I start up a thread on the JBO, soon tho!

If you can run fine on 93, I'm sure mine will be just fine on 91.

 

Mine will be up there once its closer to reality aka the summer.

 

Good stuff here. I will be watching (take that however creepy as you would like).

 

I understand your reasoning for going with the comp stage 2 grind (you already have them and the stage 3's are probably not as big as you want to go in the future). But I'll say on this head/block combo, stage 3's are totally streetable. Phil's (Iamqwibby) car is a blast to drive after tuning; he's rockin stage 3's.

In anycase, man you will not be disappointed you chose this route I still have an itch to send a head to Mike for work.

 

Now, are these cams still a blower cam?

 

None of the cams mentioned are blower cars....I am building an All-Motor car, motor is going in my Sunfire to replace the 2.2 L61.

 

Ok, I wasn't sure since you were using the LSJ head... I forget you can mix and match Ecotec cams.

 

LZM Balance Shaft Delete bushings in the mail.

 

LZM balance shaft delete bushings have shown up
GMR oil pump gears have shown up
Valve cover showed up (well have of what I bought)
Lsj cam caps have shown up

Picking up my LE5 this coming weekend, woot!

Pics to follow!

 

YAY photos....

GMR Oil Pump Gears


LSJ Valve Cover (Fresh out of the parts cleaner, needs paint tho)


LZM Balance Shaft Delete


Golden Eagle Head Studs

 

very cool. Keep us updated.

 

Got my motor, it's out of a 2006 G6 with 41k on it.

Is has the oil cooler on it which I'm not to thrilled about because it wasn't supposed to, didn't find out till I got to the yard, it doesn't work with the j-body without some modification. I might just delete it if I can.

 

What about just relocating the oil cooler? Never hurts to have cooler oil.

 

Do they make an oil cooler relocation adapter for the le5? I know they make one for the lsj but I'm not sure the holes are in the same place.

 

They are. They are the same basic block. Plus, any AN fittings should work.

 

why does your le5 have a different intake manifold than the 06 07 le5 cobalts O and how much was the motor