Forced Induction Superchargers | Turbochargers | Intercoolers

I said I wouldn't, so....

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Old Jun 28, 2024 | 04:42 PM
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Sounds great, keep us posted.

How are you going to package it all, don't mind having parts above the hood line?
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Old Jun 28, 2024 | 07:52 PM
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Originally Posted by NicD
I'm intrigued, do you have any pictures of this? Did you chop/lengthen any wiring or how did you route it into the dash area? I've been thinking about doing something similar, just haven't had the time to investigate it. I would probably move the ECM, etc all at the same time too under the dash.
I had to extend the wiring to the headlights. I depinned the transmission harness to run it inside through the firewall. I also dont have the HVAC box so that opens a ton of room under the dash. I have pictures of the engine bay but none of under the dash. I'm going to rewire the whole car during this process, as well. you might be able to route the transmission harness into the car through the shifter opening, instead.



The shortblock may end up changing. I just got an offer on my long block. If it works out, I'm going to be building a 5.3 or 6.0 engine.
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Old Jun 29, 2024 | 03:43 AM
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You mentioned running 12 to 1 over 10.5 to 1 compression due to concerns of throttle response but are now going to a 5.3 or 6.0 over the 428.

Help me understand the thinking here...a 428 even at 10.5 to 1 seems like it would make way more torque at low rpm and be more responsive out of boost than a 5.3 or 6.0 ever could with the same power adder. I obviously don't know what I'm talking about so please explain since throttle response was a big concern you mentioned how are you going to get the 5.3 or 6.0 to have the response of the higher compression 428?

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Old Jun 29, 2024 | 04:36 AM
  #24  
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I didn't say anything about throttle response. That was a response to a different question.

I said I was going to do the 428ci with 12:1 compression because I already have it, know it was built correctly, and there's nothing wrong with the shortblock I have. This is not something I've done before. I always liked the smaller CI stuff because its easier to get them to hook up for the type of racing I mainly do.

So, if I do end up selling my long block, I will default to my preferred engine size, or step up slightly. This will be something I need to discuss with my engine builder. I don't want to car to be down for months, so whichever he can build, without parts delays, will likely cement the decision.

I made the thread, not to discuss the choice in shortblock/engine, but mainly to get more info/opinion on the supercharger stuff. I was already leaning towards going turbo, since I know what it entails. I have ZERO experience with the supercharger stuff. Also, as the beginning of a build thread once I start to accumulate parts.

I've decided to stick with the twin turbo route. Size will depend on if my engine actually does sell or not.

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Old Jun 29, 2024 | 06:30 AM
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Originally Posted by Pro Stock John
Sounds great, keep us posted.

How are you going to package it all, don't mind having parts above the hood line?
Going to keep it all under the hood line as best I can. Will have a, somewhat, full exhaust. A2W setup. Most likely going to put the turbos in front of the motor.
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Old Jun 29, 2024 | 06:51 AM
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Originally Posted by jayyyw
I didn't say anything about throttle response. That was a response to a different question.

I said I was going to do the 428ci with 12:1 compression because I already have it, know it was built correctly, and there's nothing wrong with the shortblock I have. This is not something I've done before. I always liked the smaller CI stuff because its easier to get them to hook up for the type of racing I mainly do.

So, if I do end up selling my long block, I will default to my preferred engine size, or step up slightly. This will be something I need to discuss with my engine builder. I don't want to car to be down for months, so whichever he can build, without parts delays, will likely cement the decision.

I made the thread, not to discuss the choice in shortblock/engine, but mainly to get more info/opinion on the supercharger stuff. I was already leaning towards going turbo, since I know what it entails. I have ZERO experience with the supercharger stuff. Also, as the beginning of a build thread once I start to accumulate parts.

I've decided to stick with the twin turbo route. Size will depend on if my engine actually does sell or not.
I apologize for offending you. You did mention wanting the higher compression so it would make it more responsive and make more power so I thought it was odd you would consider a much smaller engine over a lower compression 428 if response was a concern.

I understand you already had your mind made up on the turbo before asking the question on what to go with but the entire combo matters more than just supercharger vs turbo so the engine combination was relevant to the discussion.

There is a reason the forums are dying and I try to spur discussion which only seems to offend so I’m about to leave the forums like 99 percent of others have done.

The best part of this hobby is building your own stuff and discussing it with others but it seems everyone asks questions they already have decided the answer too and have other people doing the work for them anyway.

Enjoy your weekend.
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Old Jun 29, 2024 | 09:01 AM
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Be different and do compound boost.
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Old Jun 29, 2024 | 09:29 AM
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There ya go. Why use two turbos when three will do?

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Old Jul 1, 2024 | 02:27 PM
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Originally Posted by jayyyw
Going to keep it all under the hood line as best I can. Will have a, somewhat, full exhaust. A2W setup. Most likely going to put the turbos in front of the motor.
Just throwing this out there, I'd consider running it without a hood.
I recently pulled the hood off my 4th gen Camaro SS just for s__ts and grins and I think I like it.
I've been running the stock SS hood which seals the engine bay pretty well locking the heat in the engine bay which then radiates through the firewall into the cabin.
The engine runs about 5-10 degrees cooler and inside the car its noticeably cooler, my legs and feet no longer cook if I drive it for a while.
Just a thought.
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Old Jul 3, 2024 | 07:33 PM
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Originally Posted by TrendSetter
There ya go. Why use two turbos when three will do?
That thing is insane
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Old Jul 3, 2024 | 07:43 PM
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Originally Posted by BCNUL8R
I apologize for offending you. You did mention wanting the higher compression so it would make it more responsive and make more power so I thought it was odd you would consider a much smaller engine over a lower compression 428 if response was a concern.

I understand you already had your mind made up on the turbo before asking the question on what to go with but the entire combo matters more than just supercharger vs turbo so the engine combination was relevant to the discussion.

There is a reason the forums are dying and I try to spur discussion which only seems to offend so I’m about to leave the forums like 99 percent of others have done.

The best part of this hobby is building your own stuff and discussing it with others but it seems everyone asks questions they already have decided the answer too and have other people doing the work for them anyway.

Enjoy your weekend.
I'm not offended. You keep saying I said something that I didn't. I said, "the compression will make more power on less boost and be more responsive over-all". I didn't say that was the reason I was doing it.

Even if I was already leaning one way, doesn't mean I didn't want to have the discussion still. That is why I made the post. There are factors I may not have been considering.

P.s. I do my own work, besides building the shortblock internals. Don't have to worry about that, here.
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Old Jul 3, 2024 | 07:45 PM
  #32  
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Originally Posted by The ******
Just throwing this out there, I'd consider running it without a hood.
I recently pulled the hood off my 4th gen Camaro SS just for s__ts and grins and I think I like it.
I've been running the stock SS hood which seals the engine bay pretty well locking the heat in the engine bay which then radiates through the firewall into the cabin.
The engine runs about 5-10 degrees cooler and inside the car its noticeably cooler, my legs and feet no longer cook if I drive it for a while.
Just a thought.
Yeah, it does help with heat, but it hurts aero after 100+mph. How much, depends on the car. I will likely have it hoodless for a bit tho, until I can find a nice vented hood or another stock hood and install vents in it.
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Old Jul 4, 2024 | 08:07 AM
  #33  
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If you decide to go single turbo, I may have a brand new in the box GT55-94/104 I’ll give you for a good discount…
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Old Sep 12, 2024 | 09:54 AM
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So… I guess this thread is coming back to life?
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Old Sep 12, 2024 | 11:22 AM
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Originally Posted by jayyyw
Of course that means I have to.

I will be parting out my (almost) 800whp all motor setup soon, to rebuild the car into a boost monster. The only thing I will be keeping is the shortblock.

Goal for this trip in my crazy head is 1200+ whp.

Shortblock is a 428ci, sleeved aluminum block
Stock crank and rods, with Wiseco pistons
Compression will be 12:1
Going through Cesar Tellez for his BR3 heads
Cam Motion LLSR cam
8000+ RPM

Now, the only thing I don't know, is the route I want to take to get there. I've done the turbo thing. I've done all motor and nitrous. I haven't done a supercharged setup.

I talk a lot of **** on the centri stuff, but they are definitely capable. A Kong 2650 is also an option but will likely need to be a custom install.

So basically, in order, my options are:
Twin Pulsar 73mm turbos
Kong 2650
F1X
Big single turbo

Car is a '08 Z06, 6spd, that is really light. So, don't need a ton of power to go fast. Traction is definitely going to be an obstacle but I think I can manage it.

I will most likely begin parting out the car towards the end of July.
There were a few 2650 C7s running great at LS Fest. I like the packaging.
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Old Sep 12, 2024 | 11:24 AM
  #36  
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Originally Posted by jayyyw
Of course that means I have to.

I will be parting out my (almost) 800whp all motor setup soon, to rebuild the car into a boost monster. The only thing I will be keeping is the shortblock.

Goal for this trip in my crazy head is 1200+ whp.

Shortblock is a 428ci, sleeved aluminum block
Stock crank and rods, with Wiseco pistons
Compression will be 12:1
Going through Cesar Tellez for his BR3 heads
Cam Motion LLSR cam
8000+ RPM

Now, the only thing I don't know, is the route I want to take to get there. I've done the turbo thing. I've done all motor and nitrous. I haven't done a supercharged setup.

I talk a lot of **** on the centri stuff, but they are definitely capable. A Kong 2650 is also an option but will likely need to be a custom install.

So basically, in order, my options are:
Twin Pulsar 73mm turbos
Kong 2650
F1X
Big single turbo

Car is a '08 Z06, 6spd, that is really light. So, don't need a ton of power to go fast. Traction is definitely going to be an obstacle but I think I can manage it.

I will most likely begin parting out the car towards the end of July.
There were a few 2650 C7s running great at LS Fest. I like the packaging.
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Old Sep 13, 2024 | 12:00 AM
  #37  
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Originally Posted by C5_Pete
So… I guess this thread is coming back to life?
Haha yup, Just need to get everything sold. Still leaning very heavily to turbos but also still want to try a supercharged setup.
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Old Sep 13, 2024 | 08:12 AM
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Well,
I’m pretty tempted to pick up your intake manifold setup….. Self control…. I’m not to good with it…
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Old Sep 13, 2024 | 08:55 AM
  #39  
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Originally Posted by jayyyw
Haha yup, Just need to get everything sold. Still leaning very heavily to turbos but also still want to try a supercharged setup.
A big, nasty Procharger with straight cut gears would be pretty bitchin.
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Old Sep 13, 2024 | 10:37 AM
  #40  
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Originally Posted by jayyyw
Haha yup, Just need to get everything sold. Still leaning very heavily to turbos but also still want to try a supercharged setup.
The newer brackets that are available for a supercharged setup are definitely better than what they were 10 years ago for this platform. I had an F1X on my car for a couple of years and when I started to get more aggressive with the pulley combo it really didn't like 8000+ RPM and I just could not keep a belt on it. The 2650s are great blowers but suffer from the same belt issues once you really start to push them. I eventually went twins and never looked back although I will be redoing my turbo kit at some point with better manifolds with better gate priority and moving the turbos up front so it's easier to work on.
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