300+ horse on the m62...
09-01-2011, 12:54 PM
#26
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Well right to 300 is not that hard, just no one does it. Normal bolt ons, 2.8 or smaller pulley, ported head and custom cams (and supporting valves, springs, blah blah) with either meth or e85. Now to make 400 theres two choices.
The torque monster choice which will rev to 7 grand and make the power.
All of the above with an LE5 bottom end and LSJ head ported on e85. Also adjustable cam gears that will be tuned on the dyno. Note, this will require a different cam than the above setup. You will have ~11:1 compression which will make e85 required but the blower will love it.
The high rev machine
LE5 block with LSJ crank, LSJ rods, and large bore LSJ pistons with a slight dish to bring the compression down to about 10:1. This give you about a 2.1L engine. Cams (and cam gears), springs, balance shaft delete and rev it to 9 grand (you really should use a stand alone at this point). E85 again, maybe meth too. This one is more certain to make 400 hp than the LE5 bottom end setup, but its going to be peakier and higher in the rev range. This would make a better drag engine while the other setup would make and amazing auto-x/track day engine.
Reason no one's done this stuff? Its a heck of a lot more work than throwing a turbo on a stock engine and making the same peak power.
The torque monster choice which will rev to 7 grand and make the power.
All of the above with an LE5 bottom end and LSJ head ported on e85. Also adjustable cam gears that will be tuned on the dyno. Note, this will require a different cam than the above setup. You will have ~11:1 compression which will make e85 required but the blower will love it.
The high rev machine
LE5 block with LSJ crank, LSJ rods, and large bore LSJ pistons with a slight dish to bring the compression down to about 10:1. This give you about a 2.1L engine. Cams (and cam gears), springs, balance shaft delete and rev it to 9 grand (you really should use a stand alone at this point). E85 again, maybe meth too. This one is more certain to make 400 hp than the LE5 bottom end setup, but its going to be peakier and higher in the rev range. This would make a better drag engine while the other setup would make and amazing auto-x/track day engine.
Reason no one's done this stuff? Its a heck of a lot more work than throwing a turbo on a stock engine and making the same peak power.
09-01-2011, 01:01 PM
#27
theres only one or two people that have reach that power on an m62 that i know of. one thing is for sure, it wont be cheap. and it will take just about every single possible thing to get there. from e85 and ported head as stated above to every bolt on, cooling mods and some serious tunning
Reaper06 got to 299.6...
Its covered in this thread.
https://www.cobaltss.net/forums/dyno...ighest-222466/
It can be done pretty easy.
Free flowing exhaust
Free flowing Inake
Dual Pass endplate and FMHE
2.6"-2.8" pulley
A really good E85 tune. I am sure Meth injection can get you their too.
Really, that is it. I tuned stealthySS's cobalt to 292whp with just a FMHE and 2.9" pulley.
A ported head should be enough for at least 15whp. Springs and cams should net another 10-15whp.
Most guys who spent a lot of money on engine builds went to larger power adders or I think there would be a lot more people on this list.
I would prefer as high of compression as possible using E85. The stock 11.4CR pistons from the LAF would work nicely...
09-01-2011, 01:14 PM
#28
Only one with proof. There was one other guy who says he did and I believe him. (Stock Long Block) CCSS3 claims to have done it a hundred times...
Reaper06 got to 299.6...
Nope.
Its covered in this thread.
https://www.cobaltss.net/forums/dyno...ighest-222466/
It can be done pretty easy.
Free flowing exhaust
Free flowing Inake
Dual Pass endplate and FMHE
2.6"-2.8" pulley
A really good E85 tune. I am sure Meth injection can get you their too.
Really, that is it. I tuned stealthySS's cobalt to 292whp with just a FMHE and 2.9" pulley.
A ported head should be enough for at least 15whp. Springs and cams should net another 10-15whp.
Most guys who spent a lot of money on engine builds went to larger power adders or I think there would be a lot more people on this list.
Someone has been paying attention to my posts!
I would prefer as high of compression as possible using E85. The stock 11.4CR pistons from the LAF would work nicely...
Reaper06 got to 299.6...
Nope.
Its covered in this thread.
https://www.cobaltss.net/forums/dyno...ighest-222466/
It can be done pretty easy.
Free flowing exhaust
Free flowing Inake
Dual Pass endplate and FMHE
2.6"-2.8" pulley
A really good E85 tune. I am sure Meth injection can get you their too.
Really, that is it. I tuned stealthySS's cobalt to 292whp with just a FMHE and 2.9" pulley.
A ported head should be enough for at least 15whp. Springs and cams should net another 10-15whp.
Most guys who spent a lot of money on engine builds went to larger power adders or I think there would be a lot more people on this list.
Someone has been paying attention to my posts!
I would prefer as high of compression as possible using E85. The stock 11.4CR pistons from the LAF would work nicely...
I even mentioned you as the guy on here making 300whp+ with the M62.
I know of one person who was selling his car on here that made 313whp on a 2.6" pulley, built motor & meth. It was a Victory Red balt. He posted his dyno sheets in the forsale thread. This was a few years ago though. It would be tough to find.
09-01-2011, 02:48 PM
#29
lol i had a hard time trying to remember ebristol's user name which is the only one ive seen breaking 300whp+ on the m62. i think its pretty awesome to achieve those numbers without using nitrous 
ill like to hear how liud that m62 probably gets at that point
ill like to hear how liud that m62 probably gets at that point
09-01-2011, 03:01 PM
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I'm at 262hp/233tq with my current mods and i have a 2.7 and meth ready to go. Really hoping to get close to 300 if not to it....I have faith in Nick once I can get up to get it re-tuned!!
09-01-2011, 09:00 PM
#33
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pretty much everything that staged07ss said is spot on
it can be done, but why waste your money on something thats being pushed at its limit? just to say you did it?
Its easier, and probably alot safer on motor temp wise to run tvs ( if your looking for blower power ) vs a lower sized pulley on the m62.
not trying to discourage in any way, if this is the build your setting your sights on, good luck, take your time and make sure you have every angle setup as you go for your goal. hate to see you get set back over missing something minor resulting in something major.
it can be done, but why waste your money on something thats being pushed at its limit? just to say you did it?
Its easier, and probably alot safer on motor temp wise to run tvs ( if your looking for blower power ) vs a lower sized pulley on the m62.
not trying to discourage in any way, if this is the build your setting your sights on, good luck, take your time and make sure you have every angle setup as you go for your goal. hate to see you get set back over missing something minor resulting in something major.
09-01-2011, 09:53 PM
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No I'm saying it can be done. and the torquer is my current 2 year plan (or 1 year if I can snag a better paying internship next summer).
Reason to stick with the MP62 over the tvs? Power delivery, if I wanted the power delivery that everyone describes with the TVS I would go turbo. This is my auto-x monster, I want my power and I want it now, not a fraction of a second later.
Reason to stick with the MP62 over the tvs? Power delivery, if I wanted the power delivery that everyone describes with the TVS I would go turbo. This is my auto-x monster, I want my power and I want it now, not a fraction of a second later.
09-01-2011, 09:57 PM
#38
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No I'm saying it can be done. and the torquer is my current 2 year plan (or 1 year if I can snag a better paying internship next summer).
Reason to stick with the MP62 over the tvs? Power delivery, if I wanted the power delivery that everyone describes with the TVS I would go turbo. This is my auto-x monster, I want my power and I want it now, not a fraction of a second later.
Reason to stick with the MP62 over the tvs? Power delivery, if I wanted the power delivery that everyone describes with the TVS I would go turbo. This is my auto-x monster, I want my power and I want it now, not a fraction of a second later.
09-01-2011, 10:02 PM
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Euthanasa, I'll have to come back to you when its time and price out my head porting options too. See how you compare on price and performance to AMMFAB. Though I feel your turn around time would be better.
09-01-2011, 10:15 PM
#41
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Come on man. I read your thread. You know what I was getting at.
I even mentioned you as the guy on here making 300whp+ with the M62.
I know of one person who was selling his car on here that made 313whp on a 2.6" pulley, built motor & meth. It was a Victory Red balt. He posted his dyno sheets in the forsale thread. This was a few years ago though. It would be tough to find.
I even mentioned you as the guy on here making 300whp+ with the M62.
I know of one person who was selling his car on here that made 313whp on a 2.6" pulley, built motor & meth. It was a Victory Red balt. He posted his dyno sheets in the forsale thread. This was a few years ago though. It would be tough to find.
https://www.cobaltss.net/forums/comp...00-whp-173741/
09-01-2011, 10:17 PM
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i downloaded (think from gmperformancedivision.com) this "How to build your 300+hp(crank) Ecotec Four Cylinder Performance Engine" that has step by step. detail installment, with photos, torque specs and more.
NEW/AFTERMARKET PARTS LIST:
high flow injectors
forged aluminum piston (compression 10.0:1)
new main & head bolts
new harmonic balancer/pulley bolt
cnc ported cylinder head (gmpp)
higher spring rate valvesprings (85lb pressure)
aggressive camshaft (comp cams)
adjustable cam gear
supercharger pulley (73mm)
shorty header (custom)
tune
NEW/AFTERMARKET PARTS LIST:
high flow injectors
forged aluminum piston (compression 10.0:1)
new main & head bolts
new harmonic balancer/pulley bolt
cnc ported cylinder head (gmpp)
higher spring rate valvesprings (85lb pressure)
aggressive camshaft (comp cams)
adjustable cam gear
supercharger pulley (73mm)
shorty header (custom)
tune
09-01-2011, 10:41 PM
#49
while we are talking about what can be done, anyone got an answer to the biggest displacement question? i know you can put the 2.4 crank in the 2.0 and get the 2.4 displacement. i know you can sleeve the 2.0 and wildly overbore it to get to 2.3. can you do both of those things and net 2.7? 2.8? if you can wildly overbore, can you then radically upsize the valves? more flow, more space, more power. i suspect this hasnt been done because most people involved in this car dont have the cash to decide the sky is the limit. i do. im just trying to plan out how to get the most motor for 20k. if they got 400 on 2.4 with m62, is it unreasonable to expect 500 with a 2.8? even 450 would be the worlds most powerful m62 lsj, throw a tvs on it and who knows. then of course, e85 is a cheap fuel, just run 110 all the time. buy it by the barrel and fill your car up at your house. limits the range your gonna be able to drive your car but then again why are you driving your race car around the country?
09-01-2011, 10:51 PM
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while we are talking about what can be done, anyone got an answer to the biggest displacement question? i know you can put the 2.4 crank in the 2.0 and get the 2.4 displacement. i know you can sleeve the 2.0 and wildly overbore it to get to 2.3. can you do both of those things and net 2.7? 2.8? if you can wildly overbore, can you then radically upsize the valves? more flow, more space, more power. i suspect this hasnt been done because most people involved in this car dont have the cash to decide the sky is the limit. i do. im just trying to plan out how to get the most motor for 20k. if they got 400 on 2.4 with m62, is it unreasonable to expect 500 with a 2.8? even 450 would be the worlds most powerful m62 lsj, throw a tvs on it and who knows. then of course, e85 is a cheap fuel, just run 110 all the time. buy it by the barrel and fill your car up at your house. limits the range your gonna be able to drive your car but then again why are you driving your race car around the country?