What company best at building Stroker engines from scratch?
05-13-2011, 11:25 PM
#31
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Dan: I guess to supercharge the installation would have to be done by someone really good, did you do yours yourself or had someone else do it? What would cause knocking or too much detonation, a motor not in good enough condition? Bill
05-13-2011, 11:26 PM
#32
Race Car
However, I think Mark Anderson (928 International) said it best: "If you don't mind opening the hood and fixing something every week, a supercharger can be adequate...until the engine suffers a failure from the increased boost. If you want to turn a key and not fuss with it, a stroker is probably the way to go."
Dan
'91 928GT S/C
475hp/460lb.ft
05-13-2011, 11:30 PM
#34
Race Car
1) AFR at higher load throughout the RPM range must be 12.5:1 or less.
2) Ignition timing must be carefully tuned so that there are no more than approx 2 knocks per second or so.
3) The engine must be in a healthy state before modification.
4) Intake oil ingestion must be greatly reduced or completely eliminated.
Dan
'91 928GT S/C
475hp/460lb.ft
05-13-2011, 11:36 PM
#35
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Dan: I think you are right, you can't make a general statement like that quote, each case of S/C is different I think depending on the engine condition & details of the S/C installation, and at least some luck( I think). Or do you disagree with that? I think I would rather do what you did, buy a car with an S/C on it, at least it has some history behind it(If the price of the car was within reason). But when I'm ready i'll make a decision, but won't be for a while, but if anything its a good exercise in possibilities. Bill
05-13-2011, 11:40 PM
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Dan: I'm not a mechanic, just looking to build myself the best 928 I can and not spend a fortune doing it., I would have to pay someone to do all the work on the car. Bill
05-13-2011, 11:56 PM
#38
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whats the basic cost of a 928 supercharge kit and how long to put one in? who makes it and where does one get one if one was to think about SC ones 928?
05-14-2011, 12:01 AM
#40
Race Car
You have to keep in mind that a stroker will require custom tuning as well.
05-14-2011, 12:04 AM
#41
Nordschleife Master
The Sharktuner has really helped. Back when I first got in to 928's there were a few folks doing S/Ced 928's and that was always the big problem...getting them to run evenly and correctly all the way across the power band! I know at least one of those cars now w/o its S/C is TERRIBLE and has two VERY LOW psi cylinders!
05-14-2011, 12:06 AM
#42
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Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
greg brown
714 879 9072
GregBBRD@aol.com
Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
05-14-2011, 12:18 AM
#43
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James: Yes, the 458 Italia thats the car I was talking about, but had the model designation wrong, I stand corrected, if Ferrari can get 570HP out of their V8, why can't it be done with the 928 block. I don't remember the exact displacement of the ferrari V8 but i think its a 4 cam engine. The car before that was the F430, and they still go for a lot of money used. I did see a Maserati today, silver, very nice & they can be had for a reasonable price., but it wasn't their latest model that you drove, James, thats a real nice car, but still going for $80K plus used. Thanks, Bill
05-14-2011, 12:20 AM
#44
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Well, I'll answer everybody individually:
Jim- What car did the devek engine go into?
Rob- What kind of design for intake and rough idea of what it would cost, somebody mentioned new intake for 928S4 is $2500, how possible?
Dr Bob- HA, HA, yeah, I want to match F428 Ferrari 0-100 in 6.7 seconds!!! And not spend $280K !!!
Dan-nice looking car, you've obviously had great luck with your S/C setup, with my luck the engine would blow up!
Greg- As you say a stroker would be less complicated but the rest of the car would have to be upgraded to match the enormous 500HP-600HP
Karl- I agree with you about the value of our 928's in todays money, just imagine the selling price today, probably $200K as you mentioned
James- I think you are right about S/C, it is an unknown factor for engine longevity, and more complex than a stroker for maintenance. Yes old 928's don't have PDK, F1 trans,etc but I would get a kick out of
spending $60K and performing like a $200-$300K exotic. I have the greatest respect for the 928 and keep thinking back to the Devek car!!
Big Mac- Would buy 89 or later 5spd for S/C or Stroker.
Brian- Half priced motors from 928 Intl. in Dec?
Mark- I like your idea, stroker must be done right, attn to all details and installed & tuned in the car! I don't think I would want stock parts, want 500-600HP range. I know sounds crazy but if I make it big in my new business, later I will do it! My goal is to match F428 performance 0-100 - 6.7 seconds, by the way Ferrari gets that 670HP from their V8 ! Maybe $60-70k when done. Bill
Jim- What car did the devek engine go into?
Rob- What kind of design for intake and rough idea of what it would cost, somebody mentioned new intake for 928S4 is $2500, how possible?
Dr Bob- HA, HA, yeah, I want to match F428 Ferrari 0-100 in 6.7 seconds!!! And not spend $280K !!!
Dan-nice looking car, you've obviously had great luck with your S/C setup, with my luck the engine would blow up!
Greg- As you say a stroker would be less complicated but the rest of the car would have to be upgraded to match the enormous 500HP-600HP
Karl- I agree with you about the value of our 928's in todays money, just imagine the selling price today, probably $200K as you mentioned
James- I think you are right about S/C, it is an unknown factor for engine longevity, and more complex than a stroker for maintenance. Yes old 928's don't have PDK, F1 trans,etc but I would get a kick out of
spending $60K and performing like a $200-$300K exotic. I have the greatest respect for the 928 and keep thinking back to the Devek car!!
Big Mac- Would buy 89 or later 5spd for S/C or Stroker.
Brian- Half priced motors from 928 Intl. in Dec?
Mark- I like your idea, stroker must be done right, attn to all details and installed & tuned in the car! I don't think I would want stock parts, want 500-600HP range. I know sounds crazy but if I make it big in my new business, later I will do it! My goal is to match F428 performance 0-100 - 6.7 seconds, by the way Ferrari gets that 670HP from their V8 ! Maybe $60-70k when done. Bill
I often wonder why the supercharged cars that make all this insane power don't have clutch and transmission problems like the naturally aspirated cars have....maybe the same reason a 360hp naturally aspirated car can spank a 500hp supercharged car, run after run, at the drags?
PFM