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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 11-10-2006, 08:53 AM   #21
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Thanks for the added info. Since I don't visit CGP (don't really care for the environment there) I didn't realize there were so many L36 swaps.

I don't expect more wear on your 212K motor either. The 3800'* seem not to have wear like many other motors do. However mileage does count for something.

And to address your question about wrist pins, I honestly have never looked at or into the possiblity of a pin difference. There have been too many mentions of the pin differences here for me to need to question it. Here'* a very informative bit of information for all.
Quote:
Originally Posted by excerpt from previous thread
........ the differences between the L67 Series I and 2, and the LN3, L27 and L36 rods...

I believe that the pistons in the L67 are of better quality as opposed to the L27 / L36, I believe that the L27 and L67 Series I uses the same length Rods, the L67 having a Floating wrist pin and the LN3 and L27 having a Pressed Pin.. Both of the L27 and LN3 as well as the L67 Series I all share a 8.5 : 1 compression, but there were varying Dish sizes iirc...

The L36 like the L27 also has a Pressed wrist pin, where the L67 has a floating pin... If memory serves the L67 should have the top ring a little bit lower than the top rin of the L36...
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Old 11-11-2006, 01:30 AM   #22
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Quote:
Originally Posted by BillBoost37
Without getting into a debate and hijacking.

Shaun has modded and at a "higher" mileage, however 6K miles is hardly what I'd consider longevity. That is a couple of weeks driving for some members. I'd like to see that car go 30-50K miles and check how the wrist pins etc are holding up.

It'* very possible the parts will hold. However they were designed differently on purpose, maybe it was only overkill. We'll see in enough mileage on these swaps.
I totally agree with BillBoost on this, I guess will all find out.
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Old 11-11-2006, 09:24 PM   #23
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Quote:
Originally Posted by bigbadbonneville
Quote:
Originally Posted by BillBoost37
Without getting into a debate and hijacking.

Shaun has modded and at a "higher" mileage, however 6K miles is hardly what I'd consider longevity. That is a couple of weeks driving for some members. I'd like to see that car go 30-50K miles and check how the wrist pins etc are holding up.

It'* very possible the parts will hold. However they were designed differently on purpose, maybe it was only overkill. We'll see in enough mileage on these swaps.
I totally agree with BillBoost on this, I guess will all find out.
Did you read my last post???

Take a look on clubgp and look at all the guys running L36 bottom ends in their GTP'*. Hell, just make a post asking who all has an L36 bottom end and what mileage they've had it with their M90 and see what they say. As far as longevity I don't see it being an issue?

I mean really how much weaker would you think the L36 bottom end is compared to the L67? There are L67 bottom ends that have been holding up to consistant 10 second passes for a while now. 11 second L67'* are FAR from unheard of and there are plenty of them on clubgp as peoples daily drivers that have been that way for years wtih no issues. L67 bottoms, for a stock bottom end, are essentially bulletproof (as long as you are being smart about it, not getting KR, etc...). Jamhoney on clubgp has been running 11'* since not too long after he bought the car new. It runs 11.2'* on stock L67 bottom end and its his daily driver. It isn't the original shortblock, however it was put in when the car was running mid 13'* and blew up due to the Intense PCM issues that '04s originally had IIRC.
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Old 11-12-2006, 08:27 PM   #24
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The only reliability issue most see is tuning. Due to the higher compression, you are more appt to "pop a piston". Mod smart and responspibly, and you won't have any issues.

You cant jump into a 3.4 pulley with just a basic TS like you can with an L67. We reccommend modding in a little different order than a your basic L67.for example:

1-dont drop pulleys sizes as 1st mod
2-focus on exhaust as first set of mods, or medium sized cam (XP thus far has been the best performer, S1x and VS are next best choices)
3-ported blower/lim is highly recommended

BTW-I run a GenV with L36 bottom end, no issues other than tuning, and I litterally beat the hell out of my car. Been on it for like 12k miles, since I popped an L67 piston after nationals 05..

-Jeremiah
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Old 11-19-2006, 10:08 AM   #25
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Where in WNY are you?
I am about 50 miles south of Buffalo.
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