KB 2.4L blower on a 402
All that info is in his master thread on CF. They've already been through a dozen belts. I'm not sure if they are chucking them, tearing them, or what. I'm really not surprised as this is a totally new combo. Some brackets or balancer (don't recall) from ECS, some parts from KB, etc. Any new combo like that will take time to get dialed in just right.
For now the car is still at Synergy while they try to figure out what to do next.
I'm not saying anything against Jeff's buildup or KB, but when I see how long some people go without their cars while testing new products I'm just happy that I went with a proven turbo package. Granted my setup isn't unique and I'm not setting any hp records (low boost), but I get to drive my car every day and enjoy it.
Mark
For now the car is still at Synergy while they try to figure out what to do next.
I'm not saying anything against Jeff's buildup or KB, but when I see how long some people go without their cars while testing new products I'm just happy that I went with a proven turbo package. Granted my setup isn't unique and I'm not setting any hp records (low boost), but I get to drive my car every day and enjoy it.
Mark
It sounds like he's doing KB's R&D work, on his dime. I wouldn't be happy with the lack-luster results or the problems. I don't think this blower will ever break 750 rwhp, and certainly not on pump gas.
The tq is impressive, but it's hp that posts the big number at the end of the 1/4, not tq.
The tq is impressive, but it's hp that posts the big number at the end of the 1/4, not tq.
I disagree, he isn't doing KB's R&D work. They sell the kit with the largest pulley on it, and a specific HP rating. Once you cross that line and want to make more power, its your own R&D time and dime.
Its actually the highest average HP thru the racing RPM powerband that is important, not peak HP numbers.
The tq is impressive, but it's hp that posts the big number at the end of the 1/4, not tq.
Originally Posted by Nine Ball
I disagree, he isn't doing KB's R&D work. They sell the kit with the largest pulley on it, and a specific HP rating. Once you cross that line and want to make more power, its your own R&D time and dime.
Its actually the highest average HP thru the racing RPM powerband that is important, not peak HP numbers.
Its actually the highest average HP thru the racing RPM powerband that is important, not peak HP numbers.
And since the RPM range during a race is typically over 4800 rpm throughout the run, low end power/tq isn't nearly as important as top end hp.
I can see this setup working great on a Yukon. It would move the Yukon as if it was a 3000lbs car with all that TQ down low. If i want a drag car i would still stick with a Centri or Turbo setup, but its still nice to see more options out there.
Did they ever mention the IAT on the KB at 14psi? That is a major concern of mine with any Roots or Whipple blower.
Did they ever mention the IAT on the KB at 14psi? That is a major concern of mine with any Roots or Whipple blower.
It's great how people with car's that don't even break 600rwhp are saying this first kit by KB isn't anything special. 
This is the first consumer car with this supercharger kit, and not only that he's pushing it to the upper limits. Let the guy work out the pulley issues, as he explains in his reply on the CF. He's also having other issues as it's a totally new engine with a totally new FI kit.
The sad fact is he probably will reach ~750rwhp on 91 octane/meth and it is a big deal, and everyone's playing it down. His trq curve isn't a curve at all, it's a straight line, and his power curve is completely linear. That will make for a car that's very easily to modulate the throttle when racing. There's no hitting boost, or spooling, it's just linear hp and flat trq.
All the nay sayers can come back crush this guy when they make a car with a new FI kit that rolls out with 1000+rwhp on the initial dyno tuning runs.
This is the first consumer car with this supercharger kit, and not only that he's pushing it to the upper limits. Let the guy work out the pulley issues, as he explains in his reply on the CF. He's also having other issues as it's a totally new engine with a totally new FI kit.
The sad fact is he probably will reach ~750rwhp on 91 octane/meth and it is a big deal, and everyone's playing it down. His trq curve isn't a curve at all, it's a straight line, and his power curve is completely linear. That will make for a car that's very easily to modulate the throttle when racing. There's no hitting boost, or spooling, it's just linear hp and flat trq.
All the nay sayers can come back crush this guy when they make a car with a new FI kit that rolls out with 1000+rwhp on the initial dyno tuning runs.
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Launching!
Joined: Jan 2005
Posts: 265
Likes: 0
Originally Posted by FAST LS1
It's great how people with car's that don't even break 600rwhp are saying this first kit by KB isn't anything special.
This is the first consumer car with this supercharger kit, and not only that he's pushing it to the upper limits. Let the guy work out the pulley issues, as he explains in his reply on the CF. He's also having other issues as it's a totally new engine with a totally new FI kit.
The sad fact is he probably will reach ~750rwhp on 91 octane/meth and it is a big deal, and everyone's playing it down. His trq curve isn't a curve at all, it's a straight line, and his power curve is completely linear. That will make for a car that's very easily to modulate the throttle when racing. There's no hitting boost, or spooling, it's just linear hp and flat trq.
All the nay sayers can come back crush this guy when they make a car with a new FI kit that rolls out with 1000+rwhp on the initial dyno tuning runs.
This is the first consumer car with this supercharger kit, and not only that he's pushing it to the upper limits. Let the guy work out the pulley issues, as he explains in his reply on the CF. He's also having other issues as it's a totally new engine with a totally new FI kit.
The sad fact is he probably will reach ~750rwhp on 91 octane/meth and it is a big deal, and everyone's playing it down. His trq curve isn't a curve at all, it's a straight line, and his power curve is completely linear. That will make for a car that's very easily to modulate the throttle when racing. There's no hitting boost, or spooling, it's just linear hp and flat trq.
All the nay sayers can come back crush this guy when they make a car with a new FI kit that rolls out with 1000+rwhp on the initial dyno tuning runs.
Yep. The owner will tell you it just COMPLETELY just blows away his previous former F1-C setup on acceleration and thats its not even close.
As an outside observer. I happen to agree with WET on the R&D and everyone will benefit in the end.
The brackets are being made super beefy for high boost applications.
They were bending ever so slightly under load.
Enough just to barely get the belt.
They were previously beta tested to 9 PSI..
Nineball
"Its actually the highest average HP thru the racing RPM powerband that is important, not peak HP numbers."
Alsolutely correct. This thang is very fast, like a 402 on a big shot of totally computer controlled spray, not from 3,200, but from right off idle.
Originally Posted by FAST LS1
It's great how people with car's that don't even break 600rwhp are saying this first kit by KB isn't anything special.
This is the first consumer car with this supercharger kit, and not only that he's pushing it to the upper limits. Let the guy work out the pulley issues, as he explains in his reply on the CF. He's also having other issues as it's a totally new engine with a totally new FI kit.
The sad fact is he probably will reach ~750rwhp on 91 octane/meth and it is a big deal, and everyone's playing it down. His trq curve isn't a curve at all, it's a straight line, and his power curve is completely linear. That will make for a car that's very easily to modulate the throttle when racing. There's no hitting boost, or spooling, it's just linear hp and flat trq.
All the nay sayers can come back crush this guy when they make a car with a new FI kit that rolls out with 1000+rwhp on the initial dyno tuning runs.
This is the first consumer car with this supercharger kit, and not only that he's pushing it to the upper limits. Let the guy work out the pulley issues, as he explains in his reply on the CF. He's also having other issues as it's a totally new engine with a totally new FI kit.
The sad fact is he probably will reach ~750rwhp on 91 octane/meth and it is a big deal, and everyone's playing it down. His trq curve isn't a curve at all, it's a straight line, and his power curve is completely linear. That will make for a car that's very easily to modulate the throttle when racing. There's no hitting boost, or spooling, it's just linear hp and flat trq.
All the nay sayers can come back crush this guy when they make a car with a new FI kit that rolls out with 1000+rwhp on the initial dyno tuning runs.
Originally Posted by 97F1R408
Honestly, if this car makes the same power from 2300-6000 or actually falling off with rpm why would you drag out the shifts any higher than lets say 3000rpm ? wouldnt you be wasting time in every gear not really accelerating? I spend alot of time calibrating valve bodys on diesels after mods and getting shift timing while making power not after it stays constant. and thats what this thing sounds like its going to need (could be wrong). One thing I see is that this blower that does so well on stangs isnt much smaller than the one on this car but those mustangs dont even have 300ci , The turbo on my 370 truck works perfect but if I put it on my 408 I think it would be a little under rated and thats 38ci I could only imagine 100+ . But I could be on crack though. Sounds like the first vet with a duramax to me.
