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wormus
2,413 posts
33 months
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Bonnie and Clyde said: Just wondered Wormus, at any stage in your past has a female told you that your penis is particularly small????????? Just wondered  Only the once, but she had a HUGE fanny! Bonnie and Clyde said: Anyway i cant wait till the 4th July  I think theres loads of us waiting to see "Daddy's rocket car" kick everyones asses See you there  I never said I'd be good at drag racing, in fact I'd wager I would be terrible!
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robkarloff
207 posts
33 months
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stevieturbo said: I just chose the biggest blower available at the time, that would fit easily. Its easier to pulley down, than it is to make a small blower pump more air. A bigger blower under-driven is not necessarily a good thing either. You lose lots of volumetric efficiency doing this. So mid to low range won't be that great, and for any street driver this is where you'll spend most of your running time... The only way to do it is the right way, size and spec for your intended output. If you later want to up the stakes, you'll get the guts of your outlay selling on what you have, and it will go towards something bigger. There's a reason I went for a 6/71 with 11%OD on my 383 rather than an 8/71 with underdrive...
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wormus
2,413 posts
33 months
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robkarloff said: stevieturbo said: I just chose the biggest blower available at the time, that would fit easily. Its easier to pulley down, than it is to make a small blower pump more air. A bigger blower under-driven is not necessarily a good thing either. You lose lots of volumetric efficiency doing this. So mid to low range won't be that great, and for any street driver this is where you'll spend most of your running time... The only way to do it is the right way, size and spec for your intended output. If you later want to up the stakes, you'll get the guts of your outlay selling on what you have, and it will go towards something bigger. There's a reason I went for a 6/71 with 11%OD on my 383 rather than an 8/71 with underdrive... Yes, somebody once said: "Run the smallest supercharger that will provide your target boost level. It will be more responsive (make boost sooner) and will require less horsepower to drive"
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ringram
6,600 posts
78 months
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Baby Jesus supercharges my car with 1Bar pressure 
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S600VXR
2,545 posts
30 months
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ringram said: Baby Jesus supercharges my car with 1Bar pressure 
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MyM8V8
2,824 posts
25 months
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ringram said: Baby Jesus supercharges my car with 1Bar pressure Give or take a few millibars, anyway. I take it you mean that SC's are the devils work!
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wormus
2,413 posts
33 months
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I think a little MP1900 TVS running say 6lbs boost would put a big smile on Richard's face. At that level it wouldn't sap hardly any power and make the most out of those heads for a solid 600whp! Go on try it, you'll giggle like a girl. If you didn't like it you could take it off and sell it. What's to lose?
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MyM8V8
2,824 posts
25 months
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wormus said: I think a little MP1900 TVS running say 6lbs boost would put a big smile on Richard's face. At that level it wouldn't sap hardly any power and make the most out of those heads for a solid 600whp! Go on try it, you'll giggle like a girl. If you didn't like it you could take it off and sell it. What's to lose? Don' think he needs one. He can light the tyres in 2nd and third as it is. Anyway I think he wants to go the heaven not the other place!
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wormus
2,413 posts
33 months
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MyM8V8 said: Don't think he needs one. He can light the tyres in 2nd and third as it is. What's he running, Chen Shin bakelite remoulds?
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ringram
6,600 posts
78 months
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Yeah, I showed Terry who collected the evil engine cover how the first 3 gears lacked some traction. I tried not to be too mental. He seemed happy chatting away during the process.
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wormus
2,413 posts
33 months
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robkarloff
207 posts
33 months
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wormus said: MyM8V8 said: Don't think he needs one. He can light the tyres in 2nd and third as it is. What's he running, Chen Shin bakelite remoulds? No, he's a canny chap so I'd guess they'll be Hwa Fong long-lifes... 
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robkarloff
207 posts
33 months
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wormus said: What?! What is this crazy device that you remove the engine from the car and bolt it to directly...?!! You'll be telling me that it's the most accurate way of measuring your engine's output next... Heathen!
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TerryS
1,046 posts
78 months
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ringram said: Yeah, I showed Terry who collected the evil engine cover how the first 3 gears lacked some traction. I tried not to be too mental. He seemed happy chatting away during the process. LOL it went well enough 
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stevieturbo
4,341 posts
77 months
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wormus said: robkarloff said: stevieturbo said: I just chose the biggest blower available at the time, that would fit easily. Its easier to pulley down, than it is to make a small blower pump more air. A bigger blower under-driven is not necessarily a good thing either. You lose lots of volumetric efficiency doing this. So mid to low range won't be that great, and for any street driver this is where you'll spend most of your running time... The only way to do it is the right way, size and spec for your intended output. If you later want to up the stakes, you'll get the guts of your outlay selling on what you have, and it will go towards something bigger. There's a reason I went for a 6/71 with 11%OD on my 383 rather than an 8/71 with underdrive... Yes, somebody once said: "Run the smallest supercharger that will provide your target boost level. It will be more responsive (make boost sooner) and will require less horsepower to drive" Well...if anyone said use the smallest SC that will provide the target boost, no offense, he shouldnt be tuning cars. Boost is the last thing you want to make. Even the simplest tuner should know its airflow, not boost you want. And the argument about a smaller blower being more responsive. Perhaps with a turbo yes. Im not convinced the same really is true with superchargers unless its a crazy extreme. Even when I used my blower on a standard 5.7, the gains everywhere were fantastic. It did feel great ( at the time )
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wormus
2,413 posts
33 months
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stevieturbo said: Well...if anyone said use the smallest SC that will provide the target boost, no offense, he shouldnt be tuning cars. It was a quote from some bloke called Jerry Magnuson.
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stevieturbo
4,341 posts
77 months
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wormus said: stevieturbo said: Well...if anyone said use the smallest SC that will provide the target boost, no offense, he shouldnt be tuning cars. It was a quote from some bloke called Jerry Magnuson. Then he seriously needs to rephrase it, or make better use of English. as I would assume he does know what he is talking about. But that statement makes him sound like he doesnt. Boost is never a target when building/tuning an engine....power goals perhaps are.
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ringram
6,600 posts
78 months
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stevieturbo said: Boost is never a target when building/tuning an engine....power goals perhaps are. 
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robkarloff
207 posts
33 months
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stevieturbo said: wormus said: stevieturbo said: Well...if anyone said use the smallest SC that will provide the target boost, no offense, he shouldnt be tuning cars. It was a quote from some bloke called Jerry Magnuson. Then he seriously needs to rephrase it, or make better use of English. as I would assume he does know what he is talking about. But that statement makes him sound like he doesnt. Boost is never a target when building/tuning an engine....power goals perhaps are. It's basically down to rotor-to-case losses, only in traditional roots designs. The bigger the blower the more lobe-to-case area there is and the higher potential for air leakage past the lobes at lower RPMs. Hence a smaller blower spun faster in this operating range will be more effective and more efficient and move a greater volume of air. Just like in the turbo world, there is significant overlap in the air delivery capabilities of a particular series of supercharger unit, so ultimately what should influence your choice should be your individual requirement and engine primary operating load/speed range. Magnusson's basic point is correct, that on a street driven vehicle you should err on the small side for the best all round characteristics. If you're building a track-only screamer which will spend it's time on full chat then you size to the bigger end because you want minimal flat-out restriction and are not bothered about part-throttle or mid-range engine response. I would guess that the reason he even mentions boost is that unfortunately it's the only thing the layperson customer understands or is aware of. I also seem to remember Mike Kuhl making a similar statement in his tech articles, unfortunately the Kuhl Superchargers site is no more.
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stevieturbo
4,341 posts
77 months
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Obviously someone sellng superchargers, would like people to err on the side of caution, and opt for the smaller unit.
They know all too well...once you get a taste, you will want more. And then have to bo and buy the bigger unit.
Sound advice.....2 sales.
Has this happened to many people do you think ? Not a dig by the way. But it does happen, all over the world. If those people had went big to start with..at least they might have saved themselves some money in the long term.
Ive had one supercharger for about 5 years now....and its a very flexible unit. Its worked perfectly on a std 5.7, right through to what I have now.
With this instance, you cant compare turbos, as the two operate so differently. Turbos in some ways are more flexible...and in others less so.
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