BD Twins
10-16-2008, 03:51 PM
#46
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The Super B towing twins were never designed to be a 700+ hp setup. It was designed for 550-575hp which is what they do and do very well. The R700s are designed to do 600-750hp which again they do and do very well. We now have our R850 kit that is available that has supported over 1000hp.
I know the cp3 has its limits ,I have not dyno,d the truck ,so I don,t now how much power the truck is making .
injectors are flux 1 ,do I need bigger tips ?
thx A.J
10-16-2008, 03:57 PM
#47
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I would be more interested in measuring the drive/boost pressures at 863.9Hp. 
I am very happy with the setup....They spool quickly and are fun to drive in traffic.
Do they give a lot of power away at the dyno events?....Time will tell, but even if I'm a few Hp down I like the way they work on the street and at the racetrack.
Not taking anything away from your turbo sets iether....I'd need to be blind not to appreciate the workmanship and the big power numbers being laid down.......Different strokes I guess.
I am very happy with the setup....They spool quickly and are fun to drive in traffic.
Do they give a lot of power away at the dyno events?....Time will tell, but even if I'm a few Hp down I like the way they work on the street and at the racetrack.
Not taking anything away from your turbo sets iether....I'd need to be blind not to appreciate the workmanship and the big power numbers being laid down.......Different strokes I guess.
Thats engineered information your asking for Jamie/ I cannot release any secrets to sucess
10-16-2008, 11:57 PM
#49
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I would be more interested in measuring the drive/boost pressures at 863.9Hp.
I am very happy with the setup....They spool quickly and are fun to drive in traffic.
Do they give a lot of power away at the dyno events?....Time will tell, but even if I'm a few Hp down I like the way they work on the street and at the racetrack.
Not taking anything away from your turbo sets iether....I'd need to be blind not to appreciate the workmanship and the big power numbers being laid down.......Different strokes I guess.
I am very happy with the setup....They spool quickly and are fun to drive in traffic.
Do they give a lot of power away at the dyno events?....Time will tell, but even if I'm a few Hp down I like the way they work on the street and at the racetrack.
Not taking anything away from your turbo sets iether....I'd need to be blind not to appreciate the workmanship and the big power numbers being laid down.......Different strokes I guess.
Stick a gauge on it and let us know. I'd bet if your making around 80psi your drive pressure is 110psi or so. That's giving up a lot of free hp for a little bit of spool up.
10-17-2008, 12:49 AM
#50
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Not sure what you are getting at.
Serious drive pressure happens at high engine speed doesn't it?
How would lower drive pressure help with spool up? Or is that even what you are getting at?
Would be happy to add another gauge....Stay tuned!
10-17-2008, 01:04 AM
#51
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What I'm getting at is by using a T-4 housing and a small turbine wheel you run higher drive pressure but gain spool up. The elevated drive pressure costs hp. So like I said...... for a little bit of gain in spool up you give up a good deal of hp because of high drive pressure.
Typically the higher the rpm's the higher the drive pressure, yes?
You can overfuel a set of twins and actually cause slower spool up with a overly restrictive exhaust side. With the adjustable fueling of the electronic trucks it's not nearly the issue because you can turn the fuel down.
Typically the higher the rpm's the higher the drive pressure, yes?
You can overfuel a set of twins and actually cause slower spool up with a overly restrictive exhaust side. With the adjustable fueling of the electronic trucks it's not nearly the issue because you can turn the fuel down.
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