Supercharger build Lap - Cobalt SS Network

2.2L LAP Performance Tech 2.2L LAP Performance Tech (2009+) 155 hp EcoTec with 150 lb-ft of torque

Supercharger build Lap

Old 11-16-2018, 06:54 PM
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Supercharger build Lap

I know what I want, Not what I need

Without beefing up my internals, probably not safe to go over 250hp that being said, Iím likely already at 200 engine hp, 155whp. Full exhaust, headers, tuned, intake..

Black Friday is near, and ***ís supercharger kit is calling me, I want the kit, a LSJ heat exchanger, dual bypass, option b, gauge housing, air fuel gauge, boost gauge, option b bracket and

with shipping and the exchange and 10% off itís 3500...
realistically Iím thinking because I only need to bring this up 50-75hp I probably donít need an LSJ Heat exchanger? Or dual bypass then

option b is a must in my opinion.

And gauges... it would be nice to have, but essential? I got hp tuners, and a plex3 I can see air fuel ratio and boost when setting the thing up, will I really need gauges all the time?
Dont get me wrong i think they would look slick af and cool to have but additional.


Looking for opinions here,
Maybe additional heat exchanger could be added easily down the road like in the summer next year

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Old 11-16-2018, 07:02 PM
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Canít see this being run any higher than a stock LSJ, I believe they were 12psi, with one, larger heat exchanger but in poor placement.

The option b would account for smaller heat exchnager. And it, would have open air

Read a study, an additional exchnager paired in series would reduce temp by up to 40% on cobalts. Meh maybe for people going 350hp itíll be noticeable, on a 250hp car I donít want blow up.. do I really need that

Considering buying the kit and option b and a new tune, probably b 3k and a bit maybe with install shipping what not. Rather than 4500 in parts and install
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Old 11-16-2018, 08:44 PM
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Hundreds if not thousands of people have M62 supercharged LAPs without piston failure.
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Old 11-16-2018, 09:46 PM
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with a good and small boost tune before starting it, not worried about it blowing...

Considering that is gonna be a gain of under 100, there is certainly an over-board in getting parts.
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Old 11-16-2018, 09:54 PM
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His rings are fine. And 3500 to supercharge is insane.
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Old 11-16-2018, 10:20 PM
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Yeah itís expensive, with the Canadian dollar and supporting cooling mods, and gauges.
I suppose they could always be added down the road

7. GSDIESEL300, 267whp, 215wtq, Verified Dynojet, (LAP Auto), M62/PB/2.9/60s/HE/DU/I/F/TB/IM/T, Graph

Now this^ gives me bad ideas, but I donít wanna go that far
if Iím not mistaken the rating of 250hp breaking point is referring to engine delivered hp, not wheel, correct?
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Old 11-17-2018, 12:31 AM
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im not gonna get into the arguments, but i can say ive supercharged 2 hhrs with lap engines without an issue. first one was our shop run around car, a 2011 hhr auto, we ended up taking the supercharger off and selling the car. the 2nd i did for my bosses kid, it was a 2009 hhr lap 5 speed. its running a 3.1" pulley, 42lb injectors, dual pass and uses a cobra heat exchanger (essentially a bunch of leftover stuff from my lsj over the years). car also has a header and full exhaust. the tune was conservative, afr under boost is always in the low 11s and it doesnt have much timing at all. i did this at least 6-8 months ago, havent had a single issue with it.
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Old 11-17-2018, 03:09 AM
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Originally Posted by HGT View Post
Not an argument.... it's an opinion. I hope the pistons hold up.
i dont have any thoughts that they wont. im not sure if the lap pistons are any different than the l61 pistons, but back in the day when the l61 was a brand new thing a number of people found the limits of the l61, including myself. it for sure doesnt take a lot to hurt them, i popped a couple engines from running just a hair above 12:1 afr, however keeping the engines a bit rich with low timing and they seemed to live. the failures i had was the top of the piston breaking, it appeared it was caused by the top ring butting together, and being the top ring is so close to the top of the piston it gets hot quick, and the piston breaks easily.

keep it pretty tame and itll be ok. i wouldnt expect to make more than 225 whp, anymore and your playing with fire. or pull it apart and throw in a set of eagle rods, wiseco pistons and a set of head studs, then throw anything you want at it.
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Old 11-17-2018, 11:24 AM
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Interesting... Not eager to spend 4k on the car, it's low miles though so I'd like too keep beefing it up..

Perhaps I should stick N/A, use the black Friday sales coming up get an LSJ throttle body, 2.4l intake manifold and a new tune, that would only be like 700 dollars give or take... I could install myself and flash the thing too, no labor
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Old 11-17-2018, 11:39 AM
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Originally Posted by HGT View Post
Your pcm is not capable of limiting boost to the supercharger. It will peak based on the pulley size every time you stand on it. I wish you the best of luck.

I did not know that, very interesting thankyou
Thought the PCM could regulate that
So theoretically, I would need a boost controller to limit boost eh? more money

Leaning further away from this idea then,
I'll beef up the intake manifold and throttle body then, stop there.




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Old 11-17-2018, 11:51 AM
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Just run a fairly large pulley and itll be okay. Even a stock pulley will feel great compared to being NA.
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Old 11-18-2018, 03:26 PM
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You can get a TC for 5 grand. Better than building something for 3.
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Old 11-19-2018, 08:10 AM
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If you go turbo it would be a waste to not go forged internals because you won't be using it anywhere close to it's potential. Supercharger with a 3.1 pulley and you should be safe for a long time. I ran 3.1 on 91 octane, 11.5 AFR, and about 14 degrees of ignition timing and never had any issues but only ran it like that for about a year. Many people have had success with that setup. I'm guessing HGT is weary because of his personal experience popping ring-lands on his 2.4

I would recommend dual-pass end plate. Even with lower power you still want optimal cooling. Opt. B does not really provide additional cooling as you have mentioned, the fluid is not routed to flow through the tank. The main benefit of option B is it makes it easier to add fluid and burp the air out of the system. If you want to save money LSJ heat exchangers can be found cheap. You absolutely need a wide-band gauge to monitor air/fuel ratios for tuning, troubleshooting and peace of mind. Boost gauge could be optional but I find it also to be useful for troubleshooting. You can save a good amount of money buying an used M62. The rotors can be recaoted and with new bearings installed like new performance. For your setup the ZZP belt routing will be fine and you can save money not needing an LSJ alternator, AC compressor and all the other belt accessories.
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Old 01-14-2019, 05:42 AM
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I supercharged my 2009 g5 with the 2.2 LAP engine almost 5 years ago and it was at around 32k miles. Still running strong and have had no failures in it's years being supercharged. It's on a 2.9 pulley, has dual pass endplate, aem Cai, 60lb injectors and stock HE because my stage 3 zzp HE broke. Not making as much power as it was before but it made 232 hp on 93 without stage 3 HE on low timing. And I don't race the car as much as I used to when I installed the m62 but I will run it from time to time and have no issues. Still whoops hemis and cammed LS trucks on the daily 😬. She cowards in fear of 5.0 mustangs though lol. Most here are running 11s or 10s
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Old 01-14-2019, 07:48 AM
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Originally Posted by Crav3 View Post
I supercharged my 2009 g5 with the 2.2 LAP engine almost 5 years ago and it was at around 32k miles. Still running strong and have had no failures in it's years being supercharged. It's on a 2.9 pulley, has dual pass endplate, aem Cai, 60lb injectors and stock HE because my stage 3 zzp HE broke. Not making as much power as it was before but it made 232 hp on 93 without stage 3 HE on low timing. And I don't race the car as much as I used to when I installed the m62 but I will run it from time to time and have no issues. Still whoops hemis and cammed LS trucks on the daily 😬. She cowards in fear of 5.0 mustangs though lol. Most here are running 11s or 10s
You're talking the coyote 5.0 though right?
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