Twin Screw vs. Centrifugal
#32
Drifting
Join Date: Feb 2002
Location: Redondo Beach, CA>>>>Atlanta,GA
Posts: 2,015
Likes: 0
Received 0 Likes
on
0 Posts
Shane,
You should dyno each beforehand to eliminate that variable.
For that mater, 1/4 mile times with each should be done beforehand as well.
HTH
Andy K
You should dyno each beforehand to eliminate that variable.
For that mater, 1/4 mile times with each should be done beforehand as well.
HTH
Andy K
#36
Addict
Rennlist Member
Rennlist
Site Sponsor
Rennlist Member
Rennlist
Site Sponsor
all together now ..It is time for another lively rendition of the Supercharger Jingle ?? ah 1 , anna 2 , anna 3 ...........
#37
Three Wheelin'
Thread Starter
The onramp olympics...giggle...I love it.
Jim, do you know whether Greg/Precision will still work on forced induction cars? I seem to have this vauge memory--and it could very well be imagined--that he would not work on supercharged 928s...
This would be very sad news indeed, since I'm not yet at the level (space constraints aside) where I can do the big jobs myself.
Jim, do you know whether Greg/Precision will still work on forced induction cars? I seem to have this vauge memory--and it could very well be imagined--that he would not work on supercharged 928s...
This would be very sad news indeed, since I'm not yet at the level (space constraints aside) where I can do the big jobs myself.
#38
Addict
Rennlist Member
Rennlist
Site Sponsor
Rennlist Member
Rennlist
Site Sponsor
Greg Brown at Precision is very much willing to work on any 928 , stock , stroked , supercharged or Mark Anderson's race car. He will however probably point out that ANYTIME you increase the output and stress you reduce the reliability, no matter how you do it . He does have the in house chassis dyno (brake style) , Porsche Laptop diagnostic tools , air fuel meters etc. and most important knows how to use them . Greg is very good at what he does , he knows it and his hourly billing rate is somewhat higher than the average repair shop . The question may be "Do you want the average mechanic working on your 928 ? " .
#39
Three Wheelin'
Thread Starter
I know my own limitations, and if you have to pay up for something, it might as well be a lot, to get the best or nearabout, since perceived "values"--going the cheapie route--almost always end up being a lot more expensive over the long haul.
The "average" mechanic would be in way over his head when it comes to 928s, I think.
The "average" mechanic would be in way over his head when it comes to 928s, I think.
#40
Range Master
Pepsie Lite
Lifetime Rennlist
Member
Pepsie Lite
Lifetime Rennlist
Member
Originally posted by bd0nalds0n
I know my own limitations, and if you have to pay up for something, it might as well be a lot, to get the best or nearabout, since perceived "values"--going the cheapie route--almost always end up being a lot more expensive over the long haul.
The "average" mechanic would be in way over his head when it comes to 928s, I think.
I know my own limitations, and if you have to pay up for something, it might as well be a lot, to get the best or nearabout, since perceived "values"--going the cheapie route--almost always end up being a lot more expensive over the long haul.
The "average" mechanic would be in way over his head when it comes to 928s, I think.
Getting the right resultis a matter of adequate research, planning and care and patience with the work. You got a brain and love for the car?......You will do just fine......
#41
Three Wheelin'
Thread Starter
I should have clarified:
With an average Import shop, having average mechanics, with little or no experience working on 928s, and maybe without access to 928 workship manuals, it would be difficult for them to work on these cars profitably, or if it -was- at a profit, then it would be prohibitively expensive for the consumer, since there are so many unusual characteristics about these cars that might not always be obvious without experience or resources.
I expect to grow into the ability to do more comprehensive things to the car, especially when garage space increases, but there are still some things that intimidate me--due to complexity, space, and time. For example, I wouldn't be thrilled about swapping the TT.
With an average Import shop, having average mechanics, with little or no experience working on 928s, and maybe without access to 928 workship manuals, it would be difficult for them to work on these cars profitably, or if it -was- at a profit, then it would be prohibitively expensive for the consumer, since there are so many unusual characteristics about these cars that might not always be obvious without experience or resources.
I expect to grow into the ability to do more comprehensive things to the car, especially when garage space increases, but there are still some things that intimidate me--due to complexity, space, and time. For example, I wouldn't be thrilled about swapping the TT.
#42
Addict
Rennlist Member
Rennlist
Site Sponsor
Rennlist Member
Rennlist
Site Sponsor
Gretch while your mechanical skills , ability , and experience may be just average . Your other comments about research , planning , care , and patience plus having a love for the car clearly DO NOT apply to the average mechanic at the average shop trying to make a living on flat rate book time hours . I believe you had stated you had about 60 hours in your install (including something about compromising a dog's virtue ) at some shops rates $115 / hr that was a $7,000 task !!
#43
Range Master
Pepsie Lite
Lifetime Rennlist
Member
Pepsie Lite
Lifetime Rennlist
Member
yeah, I should have read the comment more completely in context.......I thought he was questioning his own ability to do the job. My bad......
and I agree with the point you are making, in fact it is the REASON I do my own wrenching (well, me and the dog......)
and I agree with the point you are making, in fact it is the REASON I do my own wrenching (well, me and the dog......)
#44
Three Wheelin'
Join Date: Nov 2001
Location: Northern Kentucky
Posts: 1,446
Likes: 0
Received 0 Likes
on
0 Posts
Gee I miss these debates guys, but I have been up to my neck in the garage this summer...literally...
If I was to install a crankshaft parasite it would be positive displacement, no doubt about it...but first I would go turbocharged, uh I almost forgot, that is what I am doing.
You will all like the top side look of the new turbo system, very stealth indeed...casual on-lookers won't notice the difference.
Hope to see you all in a few week's time!
If I was to install a crankshaft parasite it would be positive displacement, no doubt about it...but first I would go turbocharged, uh I almost forgot, that is what I am doing.
You will all like the top side look of the new turbo system, very stealth indeed...casual on-lookers won't notice the difference.
Hope to see you all in a few week's time!