Making a list...
07-12-2011, 07:40 PM
#1
Making a list...
JE 9.0 Pistons
ZZP Rods
ZZP Neutral Balancers
78# Supertech Springs
DIY Port, mostly to remove casting ridges and polish the exhaust and combustion chamber.
Option B
Phenolic Gasket
And a TVS with stock 3.15 pulley.
A few Qs:
TVS- Anyone think it won't fit an Auto, and what about the 6 rib pulley and a 5 rib belt?
How high can an auto get spun? 8k would be nice.
My down low is weak after the 3" exhaust, will it perk up any with the tvs or is that lowered compression going to make it a wash?
Tranny will be rebuilt by ITP next summer, if she lasts that long
ZZP Rods
ZZP Neutral Balancers
78# Supertech Springs
DIY Port, mostly to remove casting ridges and polish the exhaust and combustion chamber.
Option B
Phenolic Gasket
And a TVS with stock 3.15 pulley.
A few Qs:
TVS- Anyone think it won't fit an Auto, and what about the 6 rib pulley and a 5 rib belt?
How high can an auto get spun? 8k would be nice.
My down low is weak after the 3" exhaust, will it perk up any with the tvs or is that lowered compression going to make it a wash?
Tranny will be rebuilt by ITP next summer, if she lasts that long
07-12-2011, 07:52 PM
#3
JE 9.0 Pistons
ZZP Rods
ZZP Neutral Balancers
78# Supertech Springs
DIY Port, mostly to remove casting ridges and polish the exhaust and combustion chamber.
Option B
Phenolic Gasket
And a TVS with stock 3.15 pulley.
A few Qs:
TVS- Anyone think it won't fit an Auto, and what about the 6 rib pulley and a 5 rib belt?
How high can an auto get spun? 8k would be nice.
My down low is weak after the 3" exhaust, will it perk up any with the tvs or is that lowered compression going to make it a wash?
Tranny will be rebuilt by ITP next summer, if she lasts that long
ZZP Rods
ZZP Neutral Balancers
78# Supertech Springs
DIY Port, mostly to remove casting ridges and polish the exhaust and combustion chamber.
Option B
Phenolic Gasket
And a TVS with stock 3.15 pulley.
A few Qs:
TVS- Anyone think it won't fit an Auto, and what about the 6 rib pulley and a 5 rib belt?
How high can an auto get spun? 8k would be nice.
My down low is weak after the 3" exhaust, will it perk up any with the tvs or is that lowered compression going to make it a wash?
Tranny will be rebuilt by ITP next summer, if she lasts that long
have you thought about some cams??
07-21-2011, 09:11 PM
#5
Removed the LS4 TB today, got tired of trying to tune around the idle surges and rough shifting. I was playing a hunch that the ETC or TPS was interferring with the normal shift points and firmness oif the shift and so far it is looking like a good guess.
The LSJ TB feels like it is sucking air through a straw in comparison, like I lost 50HP. Changed the tone and pitch of the exhaust as well, a bit quieter too.
I have a 3.4 TVS pulley on order with smoothflow pulleys, waiting on a big check to arrive in the mail and then a TVS order to start with the internals for later this year...I'll just go easy.
The LSJ TB feels like it is sucking air through a straw in comparison, like I lost 50HP. Changed the tone and pitch of the exhaust as well, a bit quieter too.
I have a 3.4 TVS pulley on order with smoothflow pulleys, waiting on a big check to arrive in the mail and then a TVS order to start with the internals for later this year...I'll just go easy.
07-21-2011, 11:30 PM
#8
Senior Member
Add some bigger injectors and put a 2.6 on that TVS 
Should be fun either way. Have you given E85 a thought?
Ion TVS 2.4 Auto https://www.cobaltss.net/forums/2-4l...-build-231546/
Should be fun either way. Have you given E85 a thought? Ion TVS 2.4 Auto https://www.cobaltss.net/forums/2-4l...-build-231546/
07-22-2011, 02:30 PM
#11
No clown **** here, this is my DD. And I'm stuck with 91 octane, not even 94 around here never mind E85. So, big pulley and low boost and likely some timing retard to keep it all happy.
190? You talking speed or IATs? lol. I'm looking for ~10PSI with the same IATs (or lower) than I've got with my 8PSI off ZZPs stage 2.
The biggest difference, I'm hoping based on research anyways, is that I make the power more efficiently.
190? You talking speed or IATs? lol. I'm looking for ~10PSI with the same IATs (or lower) than I've got with my 8PSI off ZZPs stage 2.
The biggest difference, I'm hoping based on research anyways, is that I make the power more efficiently.
07-30-2011, 07:08 AM
#16
I am running their cams and springs with a SC setup. I have no dynos, but they rock. The top end power is really strong. I was grinning big time when I floored it for the first time. You will notice a power shift of about 500rpms. I am doing neutral shafts this fall because the power is still very good at 7200rpm.
07-30-2011, 07:27 AM
#18
I am building my 2.4 this winter too. I am not sure on the piston choice though. I was considering the 9.0, but I don't think I'll ever go with a turbo and if thats the case I will be better off with the 10.4 with boost under 15psi because of the obvious power gain with higher compression. I started with the ZZP kit as well and have an exhaust too. I put on a 2.9 pulley to bring the boost back up to 10.5. Now you've got me thinking...how am I going to get this m62 to move enough air to reach my 300+whp goal? I could try to pulley down to 2.6, but I am wondering if belt slip will be a problem with the 5 rib set up. Does the TVS move a lot more air? With the same pulley size I should see higher boost vs the m62?
07-30-2011, 07:43 AM
#19
I am not sure on the auto handling 8k, but I think we are forgetting something. Even with neutral shafts the stock balancer is not designed for high revs according to ZZP. Zoomer also stated this in an email when I was questioning high revs. And now I am answering my own questions
...with the larger OD damper I will not have to pulley down so far and worry about belt slipping. And it comes as 8 rib so if I do move to a 6 rib pulley system I will be ok.
Man I hate these forums...I am sitting here looking at a picture of a TVS now...and drooling. I just don't think it's in the cards with the funds the engine rebuild is going to take.
...with the larger OD damper I will not have to pulley down so far and worry about belt slipping. And it comes as 8 rib so if I do move to a 6 rib pulley system I will be ok.Man I hate these forums...I am sitting here looking at a picture of a TVS now...and drooling
. I just don't think it's in the cards with the funds the engine rebuild is going to take.
08-04-2011, 08:40 PM
#20
In the end I've decided against the TVS, I'm limited to 91 octane in this town and no e85 to be found. All the research was showing me that the TVS wasn't worth 1/2 of what it cost, and it cost a lot.
Made a couple purchases yesterday:
*GMPP Touring exhaust, to replace the ZZP noisemaker and get some back pressure back.
*Phenolic Gasket
*Option B
Harryresh has an LE5 head for me and I'm gonna swap my ZZP exhaust for a mint M62 as my rotors are scratched up.
Gonna DIY port the head and build it up with 78#s and ZZPs Cams.
I haven't been happy with the car since it was stage 1 with stock exhaust, so I'm hunting to find its sweet spot...maybe even try the 39# injectors again and see what is the most fun to drive.
Made a couple purchases yesterday:
*GMPP Touring exhaust, to replace the ZZP noisemaker and get some back pressure back.
*Phenolic Gasket
*Option B
Harryresh has an LE5 head for me and I'm gonna swap my ZZP exhaust for a mint M62 as my rotors are scratched up.
Gonna DIY port the head and build it up with 78#s and ZZPs Cams.
I haven't been happy with the car since it was stage 1 with stock exhaust, so I'm hunting to find its sweet spot...maybe even try the 39# injectors again and see what is the most fun to drive.
08-05-2011, 03:29 PM
#21
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In the end I've decided against the TVS, I'm limited to 91 octane in this town and no e85 to be found. All the research was showing me that the TVS wasn't worth 1/2 of what it cost, and it cost a lot.
Made a couple purchases yesterday:
*GMPP Touring exhaust, to replace the ZZP noisemaker and get some back pressure back.
*Phenolic Gasket
*Option B
Harryresh has an LE5 head for me and I'm gonna swap my ZZP exhaust for a mint M62 as my rotors are scratched up.
Gonna DIY port the head and build it up with 78#s and ZZPs Cams.
I haven't been happy with the car since it was stage 1 with stock exhaust, so I'm hunting to find its sweet spot...maybe even try the 39# injectors again and see what is the most fun to drive.
Made a couple purchases yesterday:
*GMPP Touring exhaust, to replace the ZZP noisemaker and get some back pressure back.
*Phenolic Gasket
*Option B
Harryresh has an LE5 head for me and I'm gonna swap my ZZP exhaust for a mint M62 as my rotors are scratched up.
Gonna DIY port the head and build it up with 78#s and ZZPs Cams.
I haven't been happy with the car since it was stage 1 with stock exhaust, so I'm hunting to find its sweet spot...maybe even try the 39# injectors again and see what is the most fun to drive.
next spring im building a 2.4 engine and going turbo once i buy a daily. no more sc for me
08-11-2011, 09:57 PM
#22
All my stuff has arrived, getting DP welded for 2.5" flange tomorrow. 3" ZZP is off the car, bundled up for trade. Phenolic gasket looks pretty cool, can't wait to see IATs after it is installed. Option B is gonna be a bit of a trial, ZZPs HE ends are butted up against the steel bumper and I'm gonna have to dremel the underside of the bumper or tap the side of the HE end along the top for the NTP fitting. Bit nervous about this either way, wish ZZP would make this an option when you buy the HE as not everyone has a OEM HE to run inline with theirs.
Sway bar endlink is bent, pretty bad too.
I have new mounts, was thinking I'd try filling with poly if I can find some.
Busy weekend ahead
Sway bar endlink is bent, pretty bad too.
I have new mounts, was thinking I'd try filling with poly if I can find some.
Busy weekend ahead
08-11-2011, 10:07 PM
#23
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I would love to know how everything ends up. My build will be very similar to yours. So I'd love to see the driveability once all is said and done. Be sure to update with how the blower fits with that phenolic gasket considering you're an auto just as I am. I had it in my plans but didn't know if it would be a super tight fit.
08-11-2011, 11:51 PM
#24
Senior Member
Make sure that h/e evenly sits against the steel bumper before tightening up all the mounting tabs. I had to take off a little material on the ends for it to sit proper. There was an instance of a h/e on here collapsing in the center when the mounting tabs were tightened, but the h/e did not rest evenly against the crash bar.
08-12-2011, 05:21 PM
#25
Option B went well, tapped frontside top on the passenger side and used 1/8th tap to build my threads then used thread tape to keep it sealed. ZZP makes a nice kit!
Phenolic gasket also went well, although the LSJ Head must use different bolts as the kit of bolts and spacers, nice as they were didn't fit **** all on a LE5 head. Luckily, I had a pack of large washers for the underside side bolt thingy and some longer bolts kicking around or it was another trip to the hardware store.
GMPP exhaust...ahhhhh...that's better. I can hear you now. And my blower sound is back
yay. Gotta be the coolest sound in the business.
Leaking by the IC pump, gonna go fix that up in a bit and call it a good day.
Phenolic gasket also went well, although the LSJ Head must use different bolts as the kit of bolts and spacers, nice as they were didn't fit **** all on a LE5 head. Luckily, I had a pack of large washers for the underside side bolt thingy and some longer bolts kicking around or it was another trip to the hardware store.
GMPP exhaust...ahhhhh...that's better. I can hear you now. And my blower sound is back
yay. Gotta be the coolest sound in the business. Leaking by the IC pump, gonna go fix that up in a bit and call it a good day.