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

Coba Gets Built, Build Thread 2.4 s256

Old 03-03-2016, 09:43 PM
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Coba Gets Built, Build Thread 2.4 s256

I have had my car three years and am growing tired of the current power. I bought this car as a one owner with 48,000 miles on it three years ago


Over all a great little motor, good torque, fun to drive, and quick for its current power.

But its time for the good ****.

Parts will be everything from the zzp 2.4 turbo kit with the s256

I know im not piecing it together like some of the legends around the forum.


But it will still be fun and fulfilling, while getting good hands on experience.


My general idea is to just use the claimed "forged" 06-07 LE5 from my local scrapyard for about $600.


I will install a fresh timing set, arp head studs, and ZZP 82# valve springs with titanium retainers to help the motor take the abuse.


While the "forged" stock bottom end motor is in, im going to start building my motor in my barn.


Buying occasional parts and making it into a better motor for the power levels I want.


Current motor getting built while the stock forged one is in should look something like this.


-ZZP forged and coated pistons for LE5
-ZZP 4340 connecting rods
-new rod and main bearings
-new timing set
-ZZP balance shaft delete
-arp head studs
-ZZP 2.4 cam shafts
-82# ZZP valve springs and titanium retainers
-New rocker arms, valve seals, lash adjusters, valve locks
-ATI ecotec super dampener, under drive
-more things im probably over looking, piston rings, over sized radiator ect..


Depending on how much all this costs together I may just go zzp girdled block for $2000 and do a similar setup on that but with a lot more confidence in its abilities.
This will all be important after im ready for the turbo kit in 3-5 months.

Build Goals:
400whp
Consistent 12sec passes
humiliator
good handling


Will be piecing it together over time.


Its turbo time!!
(eventually..)


Here the first parts I have just purchased.

Last edited by Coba; 03-25-2016 at 09:01 AM. Reason: Day off work, finally time for proper edit
Old 03-03-2016, 09:47 PM
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First off, whats the point of making power if you cant put it down?


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it's.... beautiful...


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Old 03-03-2016, 09:54 PM
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My clutch has being slipping a while and that's what started it.


It shouldn't be slipping anymore..


ZZP 2.4 stage 3 clutch kit, full face ceramic 8 puck, fidanza flywheel, and 2000# pressure plate.


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Exedy disc?
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Fidanza flywheel
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sachs pressure plate
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Old 03-03-2016, 09:56 PM
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The car is away for a few days at a family friends. He will install all this for an estimated $500


Pretty excited, but yeah the car will probably drive like **** now lol


It will be worth it!


Lots more to come in the next months
Old 03-04-2016, 01:15 AM
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Hot damn your serious! Good luck to your build
Old 03-04-2016, 01:16 AM
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Im also shooting for 400 this year on my LE5. Keep us posted.
Old 03-04-2016, 01:29 AM
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Lol I'm going for 400 on a tvs... I think I'm nutz
Old 03-04-2016, 01:29 AM
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oooo. go fast parts!
Old 03-04-2016, 06:34 PM
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Originally Posted by Haven07
Hot damn your serious! Good luck to your build
Thanks man, good luck with your tvs setup


Originally Posted by Slowbalt2000
Im also shooting for 400 this year on my LE5. Keep us posted.
Will keep this up to date. I should be getting an 06-07 motor early april to get ready to go in.


you have a k04 right? Hows that working for you? I just worry about the transmission taking to much abuse from the instant torque. Hope it works out for you man!
Old 03-04-2016, 06:36 PM
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Originally Posted by Sl0wbaltSS
oooo. go fast parts!
Yessir


It was a while your in there kind of deal. Wanted it all done while the transmission was out anyway
Old 03-05-2016, 01:49 AM
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Originally Posted by Coba
Thanks man, good luck with your tvs setup




Will keep this up to date. I should be getting an 06-07 motor early april to get ready to go in.


you have a k04 right? Hows that working for you? I just worry about the transmission taking to much abuse from the instant torque. Hope it works out for you man!
Trans is way stronger in our cars than the SS. It takes it like a champ.

I did a twin scroll delete so it spools slower, but i have a better setup on the way.
Old 03-05-2016, 03:00 AM
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Either one of you want the hahn intake manifold I have for ssle
Old 03-06-2016, 02:57 PM
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Originally Posted by Slowbalt2000
Trans is way stronger in our cars than the SS. It takes it like a champ.

I did a twin scroll delete so it spools slower, but i have a better setup on the way.


Sounds good, looking forward to it. A lot of work in that car, I used to have a silver base model just like yours.


Originally Posted by zeeky420
Either one of you want the hahn intake manifold I have for ssle
Im good man, thanks though.
Old 03-06-2016, 03:00 PM
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Should be getting the car back today.


New master slave cylinder because he couldn't get it to bleed, new control arm bushings but I will eventually go to powell trailing bushings.


Just had him do the bushings because he practically did it for nothing.


New axle seals installed.


New differential bearings, and a few other little things.


Car should be great when I get it back. Pretty stoked
Old 03-08-2016, 07:27 PM
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Car drove amazing when I got it back. Aluminum flywheels are amazing, definitely worth it.


I was out breaking in the clutch, and on an easy downshift from 3-2. The clutch stopped wanting to work.


Felt like nothing was there.


Long story short got stranded on the side of the road. Towed it back to his place.


Today he let me know the slave cylinder had blown.
I had thought he replaced it but he decided against it.


Are there any after market slave cylinders available? Has anyone ever had this happen when going to a higher # pressure plate, and needed an upgrade slave cylinder?


Never heard of this happening, any help appreciated
Old 03-08-2016, 08:10 PM
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Im fucked, just going with the gm part tob and a powell clutch stop so the tob isn't over extending.


It drove so good..


What a shitty week
Old 03-08-2016, 08:11 PM
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Im f****d, just going with a gm tob and a powell clutch pedal stop and hope it works.


It drove so good..


What a shitty week


(got some lag I guess and posted it twice....)

Last edited by Coba; 03-08-2016 at 08:13 PM. Reason: double post wtf?
Old 03-08-2016, 08:15 PM
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Should have got zzp adjustable rod for master cylinder they deal with manufacturer to change some specs on pressure plates to help with stuff like that and pedal feel

Last edited by zeeky420; 03-08-2016 at 08:21 PM. Reason: Smart phone junk
Old 03-08-2016, 09:08 PM
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I just used an fte oem replacment tob. No problems on my kys3
Old 03-11-2016, 01:48 AM
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Nice build you have so far. I like seeing other LE5s doing builds. I have been back and forth about S/C mine. Keep us posted.
Old 03-14-2016, 10:15 AM
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Originally Posted by zeeky420
Should have got zzp adjustable rod for master cylinder they deal with manufacturer to change some specs on pressure plates to help with stuff like that and pedal feel
Still considering that, $200 I wasn't expecting to spend.


Now I have to pay to have the trans dropped and a new tob installed.. again..


Sadly I wasn't aware of these issues with the tob when I decided to start this.


Hopefully it works out


Should get the car back today or tomorrow.


Originally Posted by Slowbalt2000
I just used an fte oem replacment tob. No problems on my kys3


Your lucky man, tob issues are the worst.


Car was so reliable before this. Its making me second guess but this is what I want from it.


Cars being gone almost two weeks now :/


Originally Posted by Ecotecftw
Nice build you have so far. I like seeing other LE5s doing builds. I have been back and forth about S/C mine. Keep us posted.

Thanks, I thought I had it planned out well, but then the tob issues started.


I just hope it is as reliable as it was since I have had the car.


Its always being super reliable for me the last three years until now. Second guessing a bit. If the tob goes again ill be really questioning this.


S/C 2.4 would definitely make a fun dd. Good luck
Old 03-17-2016, 10:34 PM
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Got the car back


200 city miles on the clutch in the last two days.


Car drives great.


If this keeps up I should be ready for the s256 zzp kit in 3-5 months


Hope it keeps working perfect like it has the last two days.


Coilovers should be around the corner 1-2 months.


Pictures soon
Old 03-20-2016, 09:01 PM
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Took pictures today, hopefully coilovers soon

Got some good picture today
Taken with galaxy s5, not bad


Bought this car as one owner 3 years ago


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Got smoked headlights, so when they are off they are hardly visible. Wouldn't have bought them if they were not smoked tint. I know they will never be hid's but they get the job done for me. My other headlights started fogging up.


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New smoked led tails, they look pretty good. Im ok with it for the price


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Old 03-20-2016, 10:28 PM
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Have fun it's going to be a beast! Be nice to the trans, I've done too many part throttle to wot and it destroyed 3rd pretty quickly.
Old 03-21-2016, 02:08 PM
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Originally Posted by 06_ion2
Have fun it's going to be a beast! Be nice to the trans, I've done too many part throttle to wot and it destroyed 3rd pretty quickly.


Thanks for the heads up


Nice car, must be one fun dd. Always wanted a blue redline

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