centrifugal superchargers
07-15-2008, 01:43 AM
#31
Race Car
Tim, If you ever get the chance a twin screw would be a great option to try out . The efficiency is on Par with centrifical and with faster boost.
However. turbo is still king in the end.
However. turbo is still king in the end.
07-15-2008, 01:56 AM
#32
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That is what he designed the Huntley/Garica manifold for but Derrek was too cheap to use a Whipple and was using Eaton M90's since they we so cheap.
07-15-2008, 02:53 AM
#34
Nordschleife Master
My problem witht he SFR kit is the same with just about everything else I've seen. I don't want to lose my A/C. I don't think I'm delusional in thinking there is a way to mount a SC in there...somewhere without losing my AC. (perhaps I am)
Some day in the near future, when my 944 is off of DD duty, this is something I am serious about doing. but I'd like to be comfortable driving at 160 LOL
Some day in the near future, when my 944 is off of DD duty, this is something I am serious about doing. but I'd like to be comfortable driving at 160 LOL
07-15-2008, 03:15 AM
#36
Nordschleife Master
07-15-2008, 11:03 AM
#37
Race Car
My problem witht he SFR kit is the same with just about everything else I've seen. I don't want to lose my A/C. I don't think I'm delusional in thinking there is a way to mount a SC in there...somewhere without losing my AC. (perhaps I am)
Some day in the near future, when my 944 is off of DD duty, this is something I am serious about doing. but I'd like to be comfortable driving at 160 LOL
Some day in the near future, when my 944 is off of DD duty, this is something I am serious about doing. but I'd like to be comfortable driving at 160 LOL
07-15-2008, 11:10 AM
#38
Racer
The problem with the roots blowers and these cars is the heat the roots blower generates.It makes boost down low but on a high compression motor,the power it generates is minimal at best.On a low compression motor,the power would be next to nothing unless you crank the boost up but then the charge air temps become the problem.
We had one of the prototype Huntley cars come in.It was a 968 and it made a whopping 40 horsepower increase at 4 psi.Couldnt run more then that on pump gas because it would ping.Then we figured out a way to plumb an intercooler into the system and that got us another 2 psi and another 20 horseower.From their water injection was brought online and it netted another 10 horsepower. I have the pictures somewhere of this set-up wth intercooler,etc....it was pretty cool but just didnt deliver the performance. 60-70 extra WHP is fun but you become so used to it, it becomes "normal". There was another one of these set-ups on a 944S that we tried to help the customer with and it turned into the unreliable, money pit.
This is why we went with the cetrifugal unit.At first we put a huge ATI blower and it made good power,was hard to fit and exepnsive.Then we switched to a smaller blower,that was easier to package in one of these cars and actually mae more power then the larger blower(less parasitic loss).Overall though we have jad good reliability and a pretty damn good track record.
I had always thought about putting an centrifugal SC on a 951 and see what it does but I love turbos so that wasnt going to happen on my own car.LOL.
We had one of the prototype Huntley cars come in.It was a 968 and it made a whopping 40 horsepower increase at 4 psi.Couldnt run more then that on pump gas because it would ping.Then we figured out a way to plumb an intercooler into the system and that got us another 2 psi and another 20 horseower.From their water injection was brought online and it netted another 10 horsepower. I have the pictures somewhere of this set-up wth intercooler,etc....it was pretty cool but just didnt deliver the performance. 60-70 extra WHP is fun but you become so used to it, it becomes "normal". There was another one of these set-ups on a 944S that we tried to help the customer with and it turned into the unreliable, money pit.
This is why we went with the cetrifugal unit.At first we put a huge ATI blower and it made good power,was hard to fit and exepnsive.Then we switched to a smaller blower,that was easier to package in one of these cars and actually mae more power then the larger blower(less parasitic loss).Overall though we have jad good reliability and a pretty damn good track record.
I had always thought about putting an centrifugal SC on a 951 and see what it does but I love turbos so that wasnt going to happen on my own car.LOL.
07-15-2008, 11:24 AM
#39
Racer
I really agree that turbo is king, I'm not the most popular guy with a turbo on my N/A but compared to my previous SC experience my turbo runs like a dream. I won't have my N/A turbocharged very long, I'm actually building a turbo motor to install some time next year, once I felt the kick of the turbo I decided to go the low compression route and run more boost.
07-15-2008, 12:17 PM
#40
Nordschleife Master
Ok sid.....I need details!!
That is a very clean looking setup you have. It looks professional, and its what I had pictured in my head.
How long have you had it (reliability issues?)
Have you had it dyno'd?
A list of all the parts you needed
And....... what if your alternator goes out? Is it a 3 day project to do anything that would be below the blower?
I'll take any information you care to give me
Fantastic!
That is a very clean looking setup you have. It looks professional, and its what I had pictured in my head.
How long have you had it (reliability issues?)
Have you had it dyno'd?
A list of all the parts you needed
And....... what if your alternator goes out? Is it a 3 day project to do anything that would be below the blower?
I'll take any information you care to give me
Fantastic!
07-15-2008, 12:36 PM
#41
Race Car
Mark If you do a search under my name here and on Pelican (moreso Pelican) you will find everything you need and then some I'm sure
Pulling the blower and related parts only takes about an hr if that.
I wouldn't say it looks professional but it worked.
as for reliability, before I picked up the turbo car and decided to gut the 83 I was driving it daily for over 2 yrs with the blower on.
When I was at the end of messing with that car I was running 18 psi. I didn't dyno it but I ran a mid 13 at 105 at 5800 ft elevation. That equates to ~ 280-300 rwhp.
I will say I miss the initial grunt that car produced and that is why I have stopped trying to kill my current ride and get the looks done to get back to the 83. It is a lot of fun around town, much more than my 951.
Each car has it's fun value but I just love the way that car runs.
Pulling the blower and related parts only takes about an hr if that.
I wouldn't say it looks professional but it worked.
as for reliability, before I picked up the turbo car and decided to gut the 83 I was driving it daily for over 2 yrs with the blower on.
When I was at the end of messing with that car I was running 18 psi. I didn't dyno it but I ran a mid 13 at 105 at 5800 ft elevation. That equates to ~ 280-300 rwhp.
I will say I miss the initial grunt that car produced and that is why I have stopped trying to kill my current ride and get the looks done to get back to the 83. It is a lot of fun around town, much more than my 951.
Each car has it's fun value but I just love the way that car runs.
07-15-2008, 01:01 PM
#42
Nordschleife Master
It does look professional.....check out some other pics from people who have tried to add a blower.
Professional looking is different than Factory looking. It looks like something you added, but also, could be used everyday, and was thought out. Not some cobbled together tube, and a last min. run to autozone for a few things you missed.
Professional looking is different than Factory looking. It looks like something you added, but also, could be used everyday, and was thought out. Not some cobbled together tube, and a last min. run to autozone for a few things you missed.
07-15-2008, 01:07 PM
#43
Nordschleife Master
OH you're lil mule!
I've searched you before on Pelican. Yes, I do like your car alot.
And Damn it, I was back in Denver visiting family last weekend. I should have come taken some pictures......Maybe I'll send my wife!! lol
I've searched you before on Pelican. Yes, I do like your car alot.
And Damn it, I was back in Denver visiting family last weekend. I should have come taken some pictures......Maybe I'll send my wife!! lol
07-15-2008, 01:08 PM
#44
Racer
Mark If you do a search under my name here and on Pelican (moreso Pelican) you will find everything you need and then some I'm sure
Pulling the blower and related parts only takes about an hr if that.
I wouldn't say it looks professional but it worked.
as for reliability, before I picked up the turbo car and decided to gut the 83 I was driving it daily for over 2 yrs with the blower on.
When I was at the end of messing with that car I was running 18 psi. I didn't dyno it but I ran a mid 13 at 105 at 5800 ft elevation. That equates to ~ 280-300 rwhp.
I will say I miss the initial grunt that car produced and that is why I have stopped trying to kill my current ride and get the looks done to get back to the 83. It is a lot of fun around town, much more than my 951.
Each car has it's fun value but I just love the way that car runs.
Pulling the blower and related parts only takes about an hr if that.
I wouldn't say it looks professional but it worked.
as for reliability, before I picked up the turbo car and decided to gut the 83 I was driving it daily for over 2 yrs with the blower on.
When I was at the end of messing with that car I was running 18 psi. I didn't dyno it but I ran a mid 13 at 105 at 5800 ft elevation. That equates to ~ 280-300 rwhp.
I will say I miss the initial grunt that car produced and that is why I have stopped trying to kill my current ride and get the looks done to get back to the 83. It is a lot of fun around town, much more than my 951.
Each car has it's fun value but I just love the way that car runs.
07-15-2008, 01:17 PM
#45
Racer