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NA C6z Build

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Old 06-06-2024 | 08:51 PM
  #561  
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Originally Posted by C5_Pete
Well, you only really need the scoop when you’re racing it. No need to run around daily with that ugly thing.
Yup, that's exactly what I plan to do. Just ride around without it, until it's time to get spicy
Old 06-19-2024 | 09:22 PM
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Ordered some screen filters for the TBs, since they are back out in the open.

Took it out this weekend to hang with some friends. After all the recent changes, the idle and low speed tuning needed some work. Believe I got that sorted out. Did a pull and fueling at WOT was pretty good, within 2-3% the whole way. So, safe to say, that issue is long behind me.

Did finally get to "test" out the new wheel/tire setup. Seems like it's going to work out okay. Did get a little spin off the rip in 2nd gear, but was on a normal asphalt road, instead of the concrete we usually run on. Unfortunately, with the extra weight I added with the wheels and tires, it's not really any faster than the other wheels on the 28" tires. It does look better, tho.

I did get all the nitrous stuff hooked back up. Once the weather clears up again, I'll take it out and try to get that lined out.

I'm sort of at a crossroads with the build now. I've been thinking about parting out and going with another boost build. Possibly supercharged, since I haven't gone that before.

I ordered some resonators that I am going to put on to try to calm down the exhaust note a little. The exhaust is really the big thing that keeps me from driving it more often. It's loud and gets a lot of attention. I'll make it so I can remove the extra exhaust, easily, if needed.

Something is going to change after the half-mile in October. Just don't know what.
Either time to go solid roller
Supercharged
Turbo
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Old 06-20-2024 | 09:20 AM
  #563  
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A solid roller nitrous deal is helluva street car man. And from the little movement and driving i have done with mine. The "crispness" of the revs and response alone in a solid roller makes the switch worth it.

That being said, if your intent is stay on the street and keep doing half mile stuff, going turbo is the only way. especially if you are keeping a manual. spend the money/time on boost by gear and you will have a killer car. I had a boost leash 6spd boost by gear with CO2 setup on my TA and I LOVED it. Completely changed the car for the better once i put it all in because of how tunable it finally became. 4lbs in 1st gear, 24 in 4th gear. Even brake boosting, it had ZERO traction issues for a car that made just shy of 1000ftlbs before 4000rpm. The ramp rates per gear made it a breeze.

Lightweight supercharged cars are too much for the street in my opinion. More difficult power management and belts hate stick shift cars.

vette was a mid to high 130s car. My TA just started walking harder and harder each gear, loved it lol.


Last edited by Ryans99ls1; 06-20-2024 at 09:34 AM.
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Old 06-20-2024 | 08:16 PM
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Originally Posted by Ryans99ls1
That being said, if your intent is stay on the street and keep doing half mile stuff, going turbo is the only way.
This is the main reason I am considering a change. Hopefully, in October, I will hit that 180mph goal. I like close competition, and there's really only 1, maybe 2 other all motor cars out there that can touch or exceed 180mph.

I really want to do more events. How the car is, it pretty much qualifies at the bottom of the fastest class (depending on a few variables). I'm pretty much outgunned and just throwing money in the air. Going turbo, I still may be outgunned, but at least I have a better chance.

I don't want to rely on the nitrous. Right now its just a crutch to go faster. Rather have the power on tap at all times.

I've done the turbo thing and was able to go pretty fast. I know the recipe. I do hate the belt issues that come with supercharging.

Whatever route I go, I'm keeping the shortblock as-is. I'll likely do some BR3 heads from Cesar. That would put compression in the 12:1 range. Shooting for ~1200whp.
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Old 06-21-2024 | 08:59 AM
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I hear you. The NA game is more of a personal challenge. In competition, no one cares though lol.

A 12:1 turbo car is highly enticing. The response and efficiency will make for a killer powerband. I forgot you lived the turbo life before, couldn't help going down memory lane though.
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Old 06-21-2024 | 10:36 AM
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You know, it would be nice if you posted a pic of the side view of the entire car… I need to see what this beast looks like.

Just Sayin’
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Old 06-22-2024 | 07:18 AM
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Originally Posted by Ryans99ls1
A solid roller nitrous deal is helluva street car man. And from the little movement and driving i have done with mine. The "crispness" of the revs and response alone in a solid roller makes the switch worth it.

That being said, if your intent is stay on the street and keep doing half mile stuff, going turbo is the only way. especially if you are keeping a manual. spend the money/time on boost by gear and you will have a killer car. I had a boost leash 6spd boost by gear with CO2 setup on my TA and I LOVED it. Completely changed the car for the better once i put it all in because of how tunable it finally became. 4lbs in 1st gear, 24 in 4th gear. Even brake boosting, it had ZERO traction issues for a car that made just shy of 1000ftlbs before 4000rpm. The ramp rates per gear made it a breeze.

Lightweight supercharged cars are too much for the street in my opinion. More difficult power management and belts hate stick shift cars.

vette was a mid to high 130s car. My TA just started walking harder and harder each gear, loved it lol.

https://www.youtube.com/watch?v=izsvd4sK7mQ
Who's c6 was that?
Old 06-22-2024 | 09:19 AM
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Old 06-26-2024 | 11:12 PM
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Scoop came in. Actually fit pretty good. Had to open one side just a TAD bit. Then make some cut outs for the linkage to go through.
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Old 06-27-2024 | 09:47 AM
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i know it will perform well but good god is that damn box ugly on a vette!!
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Old 06-28-2024 | 06:14 AM
  #571  
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Originally Posted by Ryans99ls1
i know it will perform well but good god is that damn box ugly on a vette!!
I actually don't think it looks that bad, lol.
Old 06-28-2024 | 10:46 AM
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Originally Posted by jayyyw
I actually don't think it looks that bad, lol.
Keep thinking that....
Old 06-29-2024 | 11:19 AM
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Originally Posted by G Atsma
Keep thinking that....
One thing to consider, though; when you're easily winning the race, all they can see is your *** end!!
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Old 06-29-2024 | 01:27 PM
  #574  
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True dat... good results make a little ugly worthwhile! LOL!
Old 07-01-2024 | 10:25 AM
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Originally Posted by Rayav
I agreed totally
Is today "Rayav Trolls Everyone Day"??
Old 07-05-2024 | 12:14 AM
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Going to wait on the part out

Last edited by jayyyw; 07-11-2024 at 09:07 PM.
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Old 07-11-2024 | 08:06 AM
  #577  
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Originally Posted by jayyyw
Back in the NA game. Boost was fun but I wanted to do an NA build again.

I picked up a pretty clean, 38k mile JSB C6z and it came with the following.

Ported MSD intake by JokerZ ---
Spiral ported stock throttle body ---
Vararam Air Intake ---
PAC 1209x Valve Springs
Johnson 2110 lifters ---
ID1050X Injectors
DSX Flex Fuel Kit ---
Walbro 525 Hellcat Fuel Pump
Meziere Billet Mechanical Water Pump ---
Prospeed Coolant Fans
Dewitt's Radiator (Not Installed)
JS Alternator 250amp
Hinson Motor/Trans Mounts
Monster LT1-S Twin Disk Clutch with Lightened Flywheel
Mighty Mouse Race Catch Can ---
LME Ported Brodix BR7 Heads
Custom Camshaft (253/263 .666 111+5) ---
ATI Balancer
ARP Headstuds
Pfadt Tri-y Headers and Catted X Pipe ---
Akropovic Axle Back Exhaust ---
DSS Carbon Fiber Driveshaft
RPM Stage 4 Diff with 3.90 Gears
MGW Shifter and Race ****
New OEM Yellow Calipers
SS Brake Lines
Performance AFX 2-Piece Rotors (Front/Rear)
Katech TI Lugnuts
Bilstein Shocks

The setup in the car made 644whp/602wtq. I only got to enjoy it for about 2 weeks before I started discovering/realizing it had some issues.

First thing I noticed, the valvetrain was LOUD and on cold starts I was getting some lifter knock. I discovered that the PAC springs that are
in the heads have way too much seat pressure for the lifters to hold. The Johnson lifters are rated to 420lb open pressure and the springs were
shimmed for something like 540lb open. Needless to say, the springs were collapsing the lifters over night and causing them to "bounce" around till
they pumped back up. Luckily this took less than a second to happen upon start up.

Second, after looking at the dyno sheet, I knew something was off. With this cam, power should have been peaking up around 65-6700rpm. Instead, it
was only peaking around 6100rpm. The rev limit was set to 7700rpm and I tried to make a pull up over 7000 and it just fell on its face. The lifters
were also collapsing up top and causing valve float (something I am very familiar with). I could feel this on the shift. It would hesitate real fast
before the power came back. This only happened at full throttle and/or a higher RPM shift.

So, rather than take my chances on the engine how it was set up, I decided to pull it apart and change it all, for the most part.

Here is a list of the changes happening. (The dashes in the original list indicate things I am changing or removing all together)

ARH 2" to 2-1/8" stepped headers with 3.5" collectors
Holley Hi Ram base with Shrear fabricated lid
A different, custom camshaft. Not able to share specs at this time. Just know its more duration, lift, and a wider LSA
Send heads to WCCH to mill further for more compression
Johnson ST2126LSR Lifters
Katech Red Pump
108mm Throttle Body
4.5" Air Intake with Halltech filter
Alky Control Meth Kit
Meziere Electric Water Pump
GZ Motorsports Vacuum Pump
Corsa Extreme Exhaust

My goal with this is to make as close to, or over 700whp. I'm guesstimating torque will fall in the 550-560wtq range. Decided not to go solid roller at this time. Possibly going to start building a second motor (very slowly) on the side that will get all the goodies.

Thoughts?
Suggestions?
You didn't mention rockers in your list
Old 07-11-2024 | 08:06 AM
  #578  
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Originally Posted by jayyyw
Back in the NA game. Boost was fun but I wanted to do an NA build again.

I picked up a pretty clean, 38k mile JSB C6z and it came with the following.

Ported MSD intake by JokerZ ---
Spiral ported stock throttle body ---
Vararam Air Intake ---
PAC 1209x Valve Springs
Johnson 2110 lifters ---
ID1050X Injectors
DSX Flex Fuel Kit ---
Walbro 525 Hellcat Fuel Pump
Meziere Billet Mechanical Water Pump ---
Prospeed Coolant Fans
Dewitt's Radiator (Not Installed)
JS Alternator 250amp
Hinson Motor/Trans Mounts
Monster LT1-S Twin Disk Clutch with Lightened Flywheel
Mighty Mouse Race Catch Can ---
LME Ported Brodix BR7 Heads
Custom Camshaft (253/263 .666 111+5) ---
ATI Balancer
ARP Headstuds
Pfadt Tri-y Headers and Catted X Pipe ---
Akropovic Axle Back Exhaust ---
DSS Carbon Fiber Driveshaft
RPM Stage 4 Diff with 3.90 Gears
MGW Shifter and Race ****
New OEM Yellow Calipers
SS Brake Lines
Performance AFX 2-Piece Rotors (Front/Rear)
Katech TI Lugnuts
Bilstein Shocks

The setup in the car made 644whp/602wtq. I only got to enjoy it for about 2 weeks before I started discovering/realizing it had some issues.

First thing I noticed, the valvetrain was LOUD and on cold starts I was getting some lifter knock. I discovered that the PAC springs that are
in the heads have way too much seat pressure for the lifters to hold. The Johnson lifters are rated to 420lb open pressure and the springs were
shimmed for something like 540lb open. Needless to say, the springs were collapsing the lifters over night and causing them to "bounce" around till
they pumped back up. Luckily this took less than a second to happen upon start up.

Second, after looking at the dyno sheet, I knew something was off. With this cam, power should have been peaking up around 65-6700rpm. Instead, it
was only peaking around 6100rpm. The rev limit was set to 7700rpm and I tried to make a pull up over 7000 and it just fell on its face. The lifters
were also collapsing up top and causing valve float (something I am very familiar with). I could feel this on the shift. It would hesitate real fast
before the power came back. This only happened at full throttle and/or a higher RPM shift.

So, rather than take my chances on the engine how it was set up, I decided to pull it apart and change it all, for the most part.

Here is a list of the changes happening. (The dashes in the original list indicate things I am changing or removing all together)

ARH 2" to 2-1/8" stepped headers with 3.5" collectors
Holley Hi Ram base with Shrear fabricated lid
A different, custom camshaft. Not able to share specs at this time. Just know its more duration, lift, and a wider LSA
Send heads to WCCH to mill further for more compression
Johnson ST2126LSR Lifters
Katech Red Pump
108mm Throttle Body
4.5" Air Intake with Halltech filter
Alky Control Meth Kit
Meziere Electric Water Pump
GZ Motorsports Vacuum Pump
Corsa Extreme Exhaust

My goal with this is to make as close to, or over 700whp. I'm guesstimating torque will fall in the 550-560wtq range. Decided not to go solid roller at this time. Possibly going to start building a second motor (very slowly) on the side that will get all the goodies.

Thoughts?
Suggestions?
Do you want to sell the cam?
Old 07-11-2024 | 10:08 AM
  #579  
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Originally Posted by coryds07,
Do you want to sell the cam?
Why are you posting your inane repetitious trolling everywhere this fine AM??
Old 07-11-2024 | 10:19 PM
  #580  
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gonna hold off on the part out. trying to see what the car does with the little changes and on the nitrous.
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