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Old 10-01-2006, 06:21   #1 (permalink)
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Fastest spooling and most effective turbo?

what would it be?
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Old 10-01-2006, 20:21   #2 (permalink)
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Re: Fastest spooling and most effective turbo?

it depends on the application and the power goal.
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Old 10-04-2006, 05:31   #3 (permalink)
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Re: Fastest spooling and most effective turbo?

Ball bearing turbos are a fast spooling turbo, and the smaller they are they are the quicker they spool into boost but then the limit of amount of power they can make. Larger turbos can make more power but the can have alot turbo lag were they takes time to spool up into its boost range, but as Dr. Disque said it depends on the application.
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Old 10-04-2006, 08:24   #4 (permalink)
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Re: Fastest spooling and most effective turbo?

Run around 8.8 compression.. Some lag is nice so you can cruse around with little power.. Too small and fuel consumption will be an issue as it jumps on boost way too quick.. This depends what engine its going on ? Etc...
Engine from 4.0 to 5.0 the T66 to T70 ...Master power's T70 is priced o/k and have not too many issues for $$$ Keeping turbine A.R low helps quick spool.. NOT necessary lag....
Need more info on engine and what it's in and intended use???
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Old 12-27-2006, 15:21   #5 (permalink)
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Re: Fastest spooling and most effective turbo?

depending on what size turbo your looking for. if something small, the mitsu t25/14b is a small fast spooling turbo.
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Old 12-28-2006, 04:07   #6 (permalink)
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Re: Fastest spooling and most effective turbo?

Quote:
Originally Posted by boostequipped
depending on what size turbo your looking for. if something small, the mitsu t25/14b is a small fast spooling turbo.
As in TD04's ? Ideal for 1800 to 2 litre ...
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Old 01-17-2007, 19:18   #7 (permalink)
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Re: Fastest spooling and most effective turbo?

You can do what all the wacky Japanese racers do use a small and a large turbo.
The small one will reach boost fast and the big one will kick in later.
Twins all the power none of the Lag.
I work with and supply a drift racing, rally teams plus plenty of weekend track warriors. These crazy cats are getting 700BHP from 2.5 litre engines and pulling 10 second 1/4 miles.
Here is a pro tip get more power from any turbo by shielding it from radiant heat.
Remember the cooler the air being injected the more power you will get.
Also good turbos don't come cheap so shielding the turbos from heat saves the bearings and make them last much longer with in some cases so I'm told almost 20% more power.
I also work with an F1 team and a Le Mans team take it from the real pros the shield everything heat is the enemy.
The only thing you want hot is the spark and you tyres
I am happy to share any tips I have picked up from working with the top performing race teams on earth. Since it will be 5-10 years before thier tech reaches the street.
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Old 01-17-2007, 23:39   #8 (permalink)
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Re: Fastest spooling and most effective turbo?

Both Mazda and Subaru have done away with sequential turbo's...
Yes th RB26 had twins but warn't sequential...
The modern more expensive turbo's work well these days...
For competition type set up with C16 or methanol high compression gets things moving.. Little rich mixture and little retarded timing spool turbo's no end.. That what that popping is on world rally cars...Or well sorted turbo cars at 1/4 mile....One's anti lag and pre stage, both similar ecu set up....
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