Turbocharging a bonneville? - Page 6 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-21-2003, 04:46 AM   #51
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Ah yes, we sell the F-Max kit for the 200SX'* and such. Hehe. I am very familiar with the SR20 an SR20DET'*. Sometimes we import the engines from Japan and sell them. Depends.... Still wanting to import a "junked" WRX Sti or Nissan Skyline and driving it around here for a while.

But yes, a T3 Turbo is too small, there are pro'* and con'*. A T3 turbo would spool very quickly (approx 2000-2500 rpm'*) but would be maxed out at 4500 and would be a cork in the exhaust. So that'* not a good idea. Then twin turbo'*, not a good idea either because of space issues and a single turbo is going to make more power always than a dual setup. Much better to spool up a bigger turbo using all 3.8L rather than splitting it up into 2 1.9L engines. If you have a street V8, you always use twin turbos for drivability and pricetag. If you are racing a V8, you use a single huge turbo since it will mckly (approx 2000-2500 rpm'*) but would be maxed out at 4500 and would be a cork in the exhaust. So that'* not a good idea. Then twin turbo'*, not a good idea either because of space issues and a single turbo is going to make more power always than a dual setup. Much better to spool up a bigger turbo using all 3.8L rather than splitting it up into 2 1.9L engines. If you have a street V8, you always use twin turbos for drivability and pricetag. If you are racing a V8, you use a single huge turbo since it will make more power.
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Old 02-21-2003, 10:30 PM   #52
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Well as far as a single turbo being able to always put out more power than a twin turbo setup I dunno. At 350 CID and over twin turbos pretty much become a necessity. But numbers like that will rarely be reached by your average turbo enthusiest so a single turbo setup will probably yeild the best power result. But for a race engine twin turbos are the way to go. Also remember racers like twin turbos cause they run cooler and last longer. Thats due to the trubo only seeing half the heat. Twin turbos have their place and I can see them being a cool idea if this was a rear wheel drive car that had the space.
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Old 02-21-2003, 11:06 PM   #53
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Quote:
Originally Posted by TheJestersRace
Well as far as a single turbo being able to always put out more power than a twin turbo setup I dunno. At 350 CID and over twin turbos pretty much become a necessity. But numbers like that will rarely be reached by your average turbo enthusiest so a single turbo setup will probably yeild the best power result. But for a race engine twin turbos are the way to go. Also remember racers like twin turbos cause they run cooler and last longer. Thats due to the trubo only seeing half the heat. Twin turbos have their place and I can see them being a cool idea if this was a rear wheel drive car that had the space.

Then you have never seen or had the turbo'* they use in racing. I have one lying around here or I might have sold it, don't remember. It was bigger than my head, came of a turbo diesel hich I rebuilt. It'* was huge and could only be powered by a V8 or a large engine. But if you ever look at the drag racing scene, they always use single turbo, maybe one or two will use dual'* but they rarely win.
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Old 02-22-2003, 07:35 PM   #54
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where have you gotten all these turbos from
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Old 02-23-2003, 07:27 AM   #55
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At ADTR we love turbos, so of course we have our sources that provide us with Turbos. As well as we are 5 mintues from Turbonetics main manufacturing and headquarters and Innovative Turbo System as well. So it'* a beautifuly place to be when dealing with turbos. But many sources we have.
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Old 02-24-2003, 02:52 AM   #56
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Ok as far as the whole wich turbo can make more power debate goes here is what I think. Yeah drag cars use a single turbo for its boost but thats because on a drag car a single turbo will provide the best off throttle response. Think about all the exhauste going through a properly designed manifold into one single large turbo. It would enagle that sucker to spool right up and let the car zoom away. Now you might say (well you just said a twin turbo setup has better throtle response). twins have better response for most street cars because people dont have the money and time to research the best way to get all their exhauste into one turbo. So you make a twin small turbo setup off of 2 manifolds and call it a day. Nof if they had done the research and taken the time they could of gotten better throttle response from a single turbo setup. Now for a road racer twins are better. Think if one turbo can put out this much cfm then 2 turbos can probably do the same or more. Remember over 350CID twin turbos are essential. Another benifit of twins for road racers are the reliability. Less heat per turbo means less chance of a coked up bearing. Thats the conclusion ive come to as far as twin vs single goes and I would like more input cause Ive been trying to figure out with is better for what application.
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Old 04-19-2003, 11:31 PM   #57
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would this be recommended on the stock SE tranny, or should us SE guys consider getting the HD version before we attempt this?
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Old 04-20-2003, 03:47 AM   #58
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how would the cars computer react to the turbo?
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Old 04-20-2003, 03:42 PM   #59
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i think we covered that, almost anything over 5psi and you would need more fuel injectors.
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Old 04-20-2003, 04:52 PM   #60
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Sounds interesting. I wonder how fast my Park avenue would be if had a turbo!
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