trying to stiffen my f1 Procharger bracket...
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trying to stiffen my f1 Procharger bracket...
So I am trying to stiffen this thing to eliminate belt slip. I am running TPI serp brackets. This sets the head unit WAY of to the right. this is a weekend toy car. So I am thinking of solid motor mounts and a turn buckle from the bracket to the inner fender. Thoughts?
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Re: trying to stiffen my f1 Procharger bracket...
Damn...
Pics coming soon
Pics coming soon
#5
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Re: trying to stiffen my f1 Procharger bracket...
Have you tried calling Larry at ASSC Racing (http://www.asscracing.com/)? He made some additional brackets to stiffen the D1SC / F1A bracket used in the TPI kit. Your other option if belt slip is really that bad is go to a cog belt setup like I did.
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Re: trying to stiffen my f1 Procharger bracket...
i use a bracket that goes from the j bracket on my ls1 setup to an oil pan bolt thats empty .
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#8
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Re: trying to stiffen my f1 Procharger bracket...
The pieces ASSC sold were similar. A bracket from the bottom of the bracket to the block near the crank pulley and a second bracket from the upper outer end of the bracket to a header bolt. The center section of the Procharger TPI bracket is pretty stable with the provided bolts.
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Re: trying to stiffen my f1 Procharger bracket...
I guess I will just go the ASSC bracket route. I have talked to Larry several times and he said he will not sell the cog setup to people that do not have double keyed big block snouts on their cranks, he said liability is way too high. In his words, "every single one breaks" sooner out later. I have the 12 rib setup. He said with his brackets, I should be able to pull 16 psi easy. I just want 14 or so.
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Re: trying to stiffen my f1 Procharger bracket...
Anyone think it is better to just ditch the tpi brackets and go with the Procharger SBC brackets?
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Car: 1986 Camaro SC
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Re: trying to stiffen my f1 Procharger bracket...
where do you want to see 14 psi? i'm running the d1sc on the tpi brackets with an 8 rib and i make 14 psi
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Re: trying to stiffen my f1 Procharger bracket...
I guess I should say i want to see 14 psi on MY motor. Depending on your motor your psi with a certain setup will be different. I have a 390 with fairly good flowing Trickflow heads and full length headers.
Either way, post pics people!
Just got off the phone with Procharger,...... no help. They even said if I run their SBC bracket I would need to brace it! I thought that was nuts.
Either way, post pics people!
Just got off the phone with Procharger,...... no help. They even said if I run their SBC bracket I would need to brace it! I thought that was nuts.
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Re: trying to stiffen my f1 Procharger bracket...
This was a long time ago, but these are similar to the brackets I have right now. I have the added brace to the alt.
This was about a year or more ago. I will take some pics tonight and post up so you can see how things lay now. I will also show you how close the inner fender is to the head unit. Can't even slide my pinky beween the two.
Clearly the TPI brackets place the unit way off to the side and that is the problem.
This was about a year or more ago. I will take some pics tonight and post up so you can see how things lay now. I will also show you how close the inner fender is to the head unit. Can't even slide my pinky beween the two.
Clearly the TPI brackets place the unit way off to the side and that is the problem.
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Car: 85 Iroc-Z
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Re: trying to stiffen my f1 Procharger bracket...
Have you tried calling Larry at ASSC Racing (http://www.asscracing.com/)? He made some additional brackets to stiffen the D1SC / F1A bracket used in the TPI kit. Your other option if belt slip is really that bad is go to a cog belt setup like I did.
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Car: GTA -89
Engine: Blown 415"
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Axle/Gears: Strange 12-bolt
Re: trying to stiffen my f1 Procharger bracket...
Well first thing is to get a spring loaded tensioner and skip the idler pulley closest to the crank.
Use the stock tensioner to get more belt wrap.
I had it like this for a while until I changed blower pulley and then the spring loaded tensioner made the belt go together snapped the belt, bent the 2 of the long bracket bolts and snapped the third almost hit the steering wheel with my forehead when it happed
then I made the bracket holder I use now, rock solid
The al "blower bracket" I have now is a result of
- the ATI one was bigger than It needed to be due to not using all idler pulleys
- Had an idea of how to get even more belt wrap
and main reason have IC, tubes, crank spacer/pulley and so on laying around so didnt want to destroy the ATI so I could sell almost a complete kit if my worked...
Use the stock tensioner to get more belt wrap.
I had it like this for a while until I changed blower pulley and then the spring loaded tensioner made the belt go together snapped the belt, bent the 2 of the long bracket bolts and snapped the third almost hit the steering wheel with my forehead when it happed
then I made the bracket holder I use now, rock solid
The al "blower bracket" I have now is a result of
- the ATI one was bigger than It needed to be due to not using all idler pulleys
- Had an idea of how to get even more belt wrap
and main reason have IC, tubes, crank spacer/pulley and so on laying around so didnt want to destroy the ATI so I could sell almost a complete kit if my worked...
Last edited by gta324; 02-05-2014 at 12:57 AM.
#19
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Re: trying to stiffen my f1 Procharger bracket...
made these both this one took the longest to make had to keep bending it to get to the right angle i needed without bending the tube this one is an old ac bracket of a serp setup that i heated and bent and just used two pieces of scrap to make the "L" bracket to match
#20
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Re: trying to stiffen my f1 Procharger bracket...
Great idea, I have done of those old brackets. As for assc, I called a year ago and he said he could still make them.
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Re: trying to stiffen my f1 Procharger bracket...
Great, I'll try and get a set off of him then.
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Car: GTA -89
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Re: trying to stiffen my f1 Procharger bracket...
The thirdgens have offset engine mounts so the engine should sit 0,5-1" more to the pass.side. Something to check if you have clearence problems.
#23
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Re: trying to stiffen my f1 Procharger bracket...
My F1 hits the driver side wheel well when the engine torques. I found engine bay paint on the head unit and a bald spot under the head unit. It had clearly hit it and made the paint chip off. maybe once I make some additional brackets, this flex will go away. I may also just make the area and pound the inner fender in a bit to give me piece of mind.
#24
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Re: trying to stiffen my f1 Procharger bracket...
I run a F1A with the serpentine bracket. The head unit itself isn't even close to hitting the body but the rubber hose to the intercooler does. Some day I'll try to reroute away from the fender routing Procharger uses but it isn't that big an issue for me right now.
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Re: trying to stiffen my f1 Procharger bracket...
Can you take some pics? Maybe close up of the head unit as well as the overall system?
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Re: trying to stiffen my f1 Procharger bracket...
I got ahold of assc. He said to use those brackets, I have to send them in my procharger bracket and they modify it to accept the brackets. He also said that they delete the lower idler pulley. Is that a good idea having it removed? How do you make up for the removal of that pulley?
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Car: GTA -89
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Re: trying to stiffen my f1 Procharger bracket...
Think of it like the belt will be as straight as possible between the blower and crank pulley and all the pullies that keeps the belt higher than that line will be forced downwards, and since tha bracket is designed like it is it will bend... clear as mud?
#28
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Re: trying to stiffen my f1 Procharger bracket...
I got ahold of assc. He said to use those brackets, I have to send them in my procharger bracket and they modify it to accept the brackets. He also said that they delete the lower idler pulley. Is that a good idea having it removed? How do you make up for the removal of that pulley?
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Re: trying to stiffen my f1 Procharger bracket...
You should run something like this. I forget if this is what Larry does or if Its a diff. setup.
I can't find the picture Im looking for.
I can't find the picture Im looking for.
#30
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Re: trying to stiffen my f1 Procharger bracket...
What about engine movement?
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Re: trying to stiffen my f1 Procharger bracket...
http://www.gmhightechperformance.com...8/viewall.html
Found the link.
The owner is a member here. I forget his name. Will do some diggging as We talked about that bracket before. Ive called Robbie the guy who did it ad talked to them about one for my novi2000 also.
http://www.corvettemasters.com/new/aboutus.html
Found the link.
The owner is a member here. I forget his name. Will do some diggging as We talked about that bracket before. Ive called Robbie the guy who did it ad talked to them about one for my novi2000 also.
http://www.corvettemasters.com/new/aboutus.html
#33
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Re: trying to stiffen my f1 Procharger bracket...
Even solid motor mounts move. I considered solid ones with front and rear motor plates, and the tech at wolfe racing said there would still be too much flex for a mount like that.
#34
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Re: trying to stiffen my f1 Procharger bracket...
There is a big force pulling that idler pulley straight down causing the bracket to flex.
Think of it like the belt will be as straight as possible between the blower and crank pulley and all the pullies that keeps the belt higher than that line will be forced downwards, and since tha bracket is designed like it is it will bend... clear as mud?
Think of it like the belt will be as straight as possible between the blower and crank pulley and all the pullies that keeps the belt higher than that line will be forced downwards, and since tha bracket is designed like it is it will bend... clear as mud?
#35
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Re: trying to stiffen my f1 Procharger bracket...
Yeah, 4 more ribs! Lol. Jk I have never run both back to back so not sure.
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Car: GTA -89
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Re: trying to stiffen my f1 Procharger bracket...
well 12 over 8ribb is 50% more contact area for the belt it also takes alot more force before in strech.
I cant remember the formula for contact surface vs max torque it can transfer...
But the real key is to increase the wrap-angle when it comes to max torque transfer... it increases exp to the wrapangle so every degree counts here
I cant remember the formula for contact surface vs max torque it can transfer...
But the real key is to increase the wrap-angle when it comes to max torque transfer... it increases exp to the wrapangle so every degree counts here
#37
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Re: trying to stiffen my f1 Procharger bracket...
So would these two parts be all that I need to swap over to the 12 rib set up since I will be having that lower pulley removed for the support brackets? Also, is the main bracket the same for the 12 rib as the 8 rib? I plan on adding a spring loaded tensioner too as seen in the one thread on here.
http://shop.brutespeed.com/ATI-DC009...DC009A-012.htm
http://shop.brutespeed.com/ATI-DPxxx...ATI-DPxxxx.htm
http://shop.brutespeed.com/ATI-DC009...DC009A-012.htm
http://shop.brutespeed.com/ATI-DPxxx...ATI-DPxxxx.htm
#38
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Car: GTA -89
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Axle/Gears: Strange 12-bolt
Re: trying to stiffen my f1 Procharger bracket...
So would these two parts be all that I need to swap over to the 12 rib set up since I will be having that lower pulley removed for the support brackets? Also, is the main bracket the same for the 12 rib as the 8 rib? I plan on adding a spring loaded tensioner too as seen in the one thread on here.
http://shop.brutespeed.com/ATI-DC009...DC009A-012.htm
http://shop.brutespeed.com/ATI-DPxxx...ATI-DPxxxx.htm
http://shop.brutespeed.com/ATI-DC009...DC009A-012.htm
http://shop.brutespeed.com/ATI-DPxxx...ATI-DPxxxx.htm
I posted my 12rib part.nbr in another post....
#39
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Re: trying to stiffen my f1 Procharger bracket...
Anyone have any other examples of a stiffer TPI bracket setup or the SBC bracket showing fitment? Suprised there are really no good pictures. From what I understand the SBC bracket works better, but you need to run v-belt PS and Alt. What pullies? are they in front or in back of the crack SC pulley?
Just looking for more detail on other strong setups. if I have to pay a little more for something that would just bolt up, I will. Just don't want something to be a maybe.
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Re: trying to stiffen my f1 Procharger bracket...
Maybe I just like to build stuff, but why not move the alt to the smog pump location and move the blower more inboard. Flex is coming from the blower being way off to the side attached to a bracket thats held to another bracket. With the blower more inboard (custom plate of course) there are plenty of cyl head and intake bosses to brace to
KISS
KISS
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Re: trying to stiffen my f1 Procharger bracket...
I agree. I just don't want to invest into something custom that might not work. If someone out there already has a tested and proven setup that can be bought... why reinvent the wheel?
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Re: trying to stiffen my f1 Procharger bracket...
Why wasnt your car good enough for you stock?
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Re: trying to stiffen my f1 Procharger bracket...
Function is compromised by ease of installation. What does the carb bracket look like vs tpi?
#45
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Re: trying to stiffen my f1 Procharger bracket...
Some wheels need reinventing
Check out the European fellow that rebuilt the whole alt/blower bracket assembly from plate steel to address the flex issue. I don't see how any retrofit bracket from another platform will help any more than a custom plate
While you're in there rethink the crank pulley stack. The more inboard you move the blower pulley, the better. I never have liked the add on pulleys spaced a foot from the front main in the name of a simpler bracket
Check out the European fellow that rebuilt the whole alt/blower bracket assembly from plate steel to address the flex issue. I don't see how any retrofit bracket from another platform will help any more than a custom plate
While you're in there rethink the crank pulley stack. The more inboard you move the blower pulley, the better. I never have liked the add on pulleys spaced a foot from the front main in the name of a simpler bracket
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Re: trying to stiffen my f1 Procharger bracket...
Some wheels need reinventing
Check out the European fellow that rebuilt the whole alt/blower bracket assembly from plate steel to address the flex issue. I don't see how any retrofit bracket from another platform will help any more than a custom plate
While you're in there rethink the crank pulley stack. The more inboard you move the blower pulley, the better. I never have liked the add on pulleys spaced a foot from the front main in the name of a simpler bracket
Check out the European fellow that rebuilt the whole alt/blower bracket assembly from plate steel to address the flex issue. I don't see how any retrofit bracket from another platform will help any more than a custom plate
While you're in there rethink the crank pulley stack. The more inboard you move the blower pulley, the better. I never have liked the add on pulleys spaced a foot from the front main in the name of a simpler bracket