2.4L LE5 Performance Tech 16 valve 171 hp EcoTec with 163 lb-ft of torque

2.4 Turbo - Intake Question

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Old 01-19-2012 | 01:29 PM
  #76  
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Originally Posted by Mindrot
11psi is way more than 260whp last I remember. Using that kit of course. It was either 11 or 12psi that yieled 350whp for ZZPs shop LE5. They don't have a dyno sheet up anymore so I don't have proof.
Oh ok but look who tuned it? It was Ryan@ZZP or Matt@ZZP I heard one of them is a great tuner, I don't think a canned tune will get you 350 whp
Old 01-19-2012 | 01:41 PM
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U can make good power on 8-10 psi Ive beaten tuned lnf's on 9 psi with my e85 set up now 14 psi is a whole nother story lol
Old 01-19-2012 | 01:55 PM
  #78  
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Originally Posted by CobaltLs505
Oh ok but look who tuned it? It was Ryan@ZZP or Matt@ZZP I heard one of them is a great tuner, I don't think a canned tune will get you 350 whp
ya i know but i was looking at css3
Old 01-19-2012 | 03:27 PM
  #79  
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Originally Posted by donald
ya i know but i was looking at css3
He's a great tuner
Old 01-19-2012 | 10:32 PM
  #80  
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Originally Posted by Mindrot
Slicks, exhaust and valve springs I think?
It was drag radial or slicks and the kit that's all. Remember is all in the tune.
The video states that their tranny was going out on those runs.
Old 01-19-2012 | 11:13 PM
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Originally Posted by donald
im thinking in may getting the cams and springs so i can rev higher but if i can hit almost 300 with the setup im getting i will be happy
Why would you want to rev higher with a turbo setup? I thought the wtq/whp falls off pretty fast up top with these setups? Maybe ZZPs didn't but that seems to be the trend when I look at the dyno charts on css.

Originally Posted by Mindrot
11psi is way more than 260whp last I remember. Using that kit of course. It was either 11 or 12psi that yieled 350whp for ZZPs shop LE5. They don't have a dyno sheet up anymore so I don't have proof.
Yeah. I made 257whp on a SC @ ~9psi a few months ago. It has to be closer to 280whp+.

And you might want to look at this...This says you will be under 300whp unless you do some valve train mods:

Originally Posted by Matt M
LE5 cams have more lift than LSJ cams. This causes valve control issues at a lower psi and/or RPM. We couldn't get past 315whp on the stock springs. At 12psi/7200 RPM, the valve float was so bad that it sounded like a rev limiter. With 78lb springs installed, we dyno'd up to 15psi/7800 RPM and 356whp without issue.
https://www.cobaltss.net/forums/2-4l...k-here-194930/
Old 01-20-2012 | 05:26 AM
  #82  
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Originally Posted by hhrfreek
Why would you want to rev higher with a turbo setup? I thought the wtq/whp falls off pretty fast up top with these setups? Maybe ZZPs didn't but that seems to be the trend when I look at the dyno charts on css.



Yeah. I made 257whp on a SC @ ~9psi a few months ago. It has to be closer to 280whp+.

And you might want to look at this...This says you will be under 300whp unless you do some valve train mods:



https://www.cobaltss.net/forums/2-4l...k-here-194930/

oh yeah i know but i am only gonna be running 11 psi that the kit comes set at until i can get thier built motor and tranny next year then ill up it to like 15 or more
Old 01-20-2012 | 06:08 AM
  #83  
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so i can get the valve springs(78lbs) and i can go up to 15 psi or so and how much can you actually rev out the automatic tranny what about the 82lb valve springs and whats the difference between th s252 and s256 cause the only difference in the kit is that and stage 3 comes with 60's instead of 50's which turbo is better
Old 01-20-2012 | 06:51 AM
  #84  
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252 is a lil bit smaller turbo than 256 if I'm not mistaken.
Old 01-20-2012 | 06:54 AM
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so the 256 would be better
Old 01-20-2012 | 07:29 AM
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Originally Posted by donald
so i can get the valve springs(78lbs) and i can go up to 15 psi or so and how much can you actually rev out the automatic tranny what about the 82lb valve springs and whats the difference between th s252 and s256 cause the only difference in the kit is that and stage 3 comes with 60's instead of 50's which turbo is better
I think they started using 82# springs instead of 78# since that post. If you are planing on doing more boost make sure you get 60s instead.

Not sure on the auto or the turbos.
Old 01-20-2012 | 07:37 AM
  #87  
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Well the stage 3 comes with the 60's
Old 01-20-2012 | 07:52 AM
  #88  
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Originally Posted by donald
so the 256 would be better
no. s252et will be good for over 400 and quicker spool.
Old 01-20-2012 | 07:56 AM
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Originally Posted by hhrfreek
I think they started using 82# springs instead of 78# since that post. If you are planing on doing more boost make sure you get 60s instead.

Not sure on the auto or the turbos.
We just sold a set of super tech 94# spring setup this week, which is the highest spring pressure spring available from super tech. Members can PM us with their valve spring purchase needs.
Old 01-20-2012 | 08:26 AM
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so im gonna get the s252et and 60's

what is the price on the 94# vavlve springs zzp has the 82# vavlve springs for 199.99
Old 01-20-2012 | 08:31 AM
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Originally Posted by donald
so im gonna get the s252et and 60's

what is the price on the 94# vavlve springs zzp has the 82# vavlve springs for 199.99
PM me ours include titanium retainers and seats... Ours is Super Tech Brand.
Old 01-20-2012 | 08:43 AM
  #92  
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since i can't get e85 do you think i could tune it for 100 octane fuel i can get it for a good price at our local airport would that yield bigger number i wish i could get e85 but the closedt place is 50 miles away from the house
Old 01-20-2012 | 08:46 AM
  #93  
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For the track or dyno, sure, but don't you have 93,4 available?
Old 01-20-2012 | 08:51 AM
  #94  
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ya i already run only 93 since i bought the car would that be just as good
Old 01-20-2012 | 08:55 AM
  #95  
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unless your going to be driving to airports to fill up lol
Old 01-20-2012 | 08:59 AM
  #96  
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well i have two near by will that give me bigger numbers or is it not worth it
Old 01-20-2012 | 09:00 AM
  #97  
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anyways im gonna get the 94# vavle springs from ttr next week
Old 01-20-2012 | 11:35 AM
  #98  
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What are you planning on revving?
Old 01-20-2012 | 11:40 AM
  #99  
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idk how much you can rev on the automatic tranny but css3 is gonna be tweaking my tune when i get hpt so i need to know how much you can rev an sutomatic to safely
Old 01-20-2012 | 11:55 AM
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