3.2KB 3v Baseline Results

[lskiller]

Relevant details listed below.

I dyno'd my car with the KB3.2LC blower on it today. It made 810/710 at 6300RPM. This is spinning the blower at a max of 13,600 RPM. It's got way more power to give - this is my starting point.

Max boost logged was 20.6psi. The lines get squiggly after 5000rpm because the tires started to slip on the dyno drums. I imagine without that slipping, I would have seen slightly better numbers.

I have a 2.75 upper pulley that I've tested on the street but frankly it scared me lol. I'm driving it like this for a bit then I'll up the power.

Before this I had a 2.3L Whipple Gen I blower on this same engine. I spun it to about 17,500 rpm and saw 15.5psi and made 710/665 to the wheels (on Kroger E85) with that setup. All dyno numbers are corrected to STD Smoothing 3.

With more timing this will do 840/740 I think and when I go down a pulley size I expect close to 900/800 - that will spin the blower in the 15,000rpm range where it works much better. With an overdrive crank pulley I believe the blower is capable of close to 1000whp but I'm not going to try that - someone else can 8-]

Pulls like a freight train and I can't overstate how effortless this power was with this blower because I'm spinning it so relatively slow.

Basic Mods:
E80 from Kroger
Return style fuel system
Brenspeed B302 3v stock compression ~9.8:1
127-450 cams w/20* limiters
VMP3500 Maf
KB 3.2LC Blower
FRPP Stage III Heads
ARH 1 7/8 headers, 2.5" exhaust no cats
6.5" IW crank pulley
3.0" KB blower pulley
FB 4R70W trans
3.73 gears
DSS Carbon Fiber driveshaft

Tuned by me with SCT Advantage

IAT's started at about 96F and ended at about 107F during the runs. That's all I'm going to discuss about IATs. In my experience running this blower since July 2015 the IATs are a non-issue. ~thanks

 

[weather man]

Careful with the pulley down. Shop I know has had rotor touch down on 5 3.2 units pushed over 800 HP.

 

[weather man]

What size collector on your 1 7/8 ARH headers?

 

[swflastang05]

Very nice!

 

[palanza7]

So what does a kit like this cost? All I see is a massive wall of text on KBs website.

 

[BruceH]

What were the uncorrected numbers?

 

[Timmbo]

That's bad ass for sure! The 3.2 is a beast! But damn, be careful. I'm at 726 rwhp at 16psi with my Mammoth and the car is a friggin hand full on the street. At times it's down right scary. I can't imagine 850-900 rwhp on city streets.

We lost a forum member this year that was probably pushing 900+hp to the tire while he was out driving and tuning. Heartbreaking and tragic. I thought about cranking mine up a few times but lost the urge after what happened to him. Be careful bro.

 

[Pentalab]

That's bad ass for sure! The 3.2 is a beast! But damn, be careful. I'm at 726 rwhp at 16psi with my Mammoth and the car is a friggin hand full on the street. At times it's down right scary. I can't imagine 850-900 rwhp on city streets.

We lost a forum member this year that was probably pushing 900+hp to the tire while he was out driving and tuning. Heartbreaking and tragic. I thought about cranking mine up a few times but lost the urge after what happened to him. Be careful bro.

Crown aviation had an automatic too, plus the 900+ rwhp. Punch it a bit, and it will also drop down some gears, compounding the traction issues on the street.

 

[lskiller]

That's bad ass for sure! The 3.2 is a beast! But damn, be careful. I'm at 726 rwhp at 16psi with my Mammoth and the car is a friggin hand full on the street. At times it's down right scary. I can't imagine 850-900 rwhp on city streets.

We lost a forum member this year that was probably pushing 900+hp to the tire while he was out driving and tuning. Heartbreaking and tragic. I thought about cranking mine up a few times but lost the urge after what happened to him. Be careful bro.

I knew Jim. I spoke with him before he passed away about other options for my car. That was a terrible thing - he quit responding to my messages and I thought he was just ignoring me... then I found out about his accident.

That being said, I don't street race anywho. I drag race my car on the weekends and drive it to work occasionally.

I rode around at 710whp on my Whipple 2.3L for 3.5 years. I'm used to it.

 

[lskiller]

Crown aviation had an automatic too, plus the 900+ rwhp. Punch it a bit, and it will also drop down some gears, compounding the traction issues on the street.

Mine is a fully manual 4R70W so no "kick down" shifting. Think of it as a clutchless manual transmission.

 

[lskiller]

So what does a kit like this cost? All I see is a massive wall of text on KBs website.

I paid $6250 shipped for the base kit.

You'll need supporting fuel mods (injectors, pumps, etc) to support the power you want and you'll need a tune.

I do all my own work and tuning so can't tell you what that will cost.

PM me if you want to know who I purchased from.

haha, yes, the KB site is a bit of a whipping to read through.

 

[lskiller]

What were the uncorrected numbers?

815/705.

I use STD 3 usually because most dynos in my area use that. Uncorrected is too wild - those in cold, coastal climates would always have high numbers. It doesn't matter which standard you correct to as long as you only compare the same correction factor.

My car was 10.1x at 710whp. It'll be way in the 9s now.

 

[lskiller]

Added some boost today - she made 881/776 on 24.5ish psi.

That would be 879/768 Uncorrected for Bruce H.

This is spinning the blower at about 14,650 rpm at 6250 engine rpm on a 6.5 lower, 2.75 upper. It's got another 2,000 rpm in it but I'm stopping here.

Haven't figured out the dip at 5200 yet - nothing in the datalog to support it. Torque converter maybe - dunno.

If you have a built 3v and want to make big boy power, the Kenne Bell 3.2LC will do it.

 

[BruceH]

815/705.

I use STD 3 usually because most dynos in my area use that. Uncorrected is too wild - those in cold, coastal climates would always have high numbers. It doesn't matter which standard you correct to as long as you only compare the same correction factor.

My car was 10.1x at 710whp. It'll be way in the 9s now.

Added some boost today - she made 881/776 on 24.5ish psi.

That would be 879/768 Uncorrected for Bruce H.

This is spinning the blower at about 14,650 rpm at 6250 engine rpm on a 6.5 lower, 2.75 upper. It's got another 2,000 rpm in it but I'm stopping here.

Haven't figured out the dip at 5200 yet - nothing in the datalog to support it. Torque converter maybe - dunno.

If you have a built 3v and want to make big boy power, the Kenne Bell 3.2LC will do it.

LOL.

I'm sure you know why I asked. Corrected numbers are a good equalizer imo unless it's forced induction at 5000' which you clearly are not at. Uncorrected are nice to know to, just to know what the motor is actually feeling stress wise.

Thanks for the info. Good Lord that's gotta be a handful. Is there a goal or is it more of a "see what it will do" build? Will you get kicked off of the track when you break 10?

 

[Marble]

I guess if my little 2.6 running 19 psi through the same tranny LS1Killer has gets me bored, I know where I'll be looking...

 

[Marble]

With the right suspension LS1Killer has enough power to hit the 8s. I'm not sure if that's what he really is trying though.

 

[Marble]

So basically the 6200 kit includes the manifold, blower, intake, a pulley, belt and what else?

Probably an intercooler, pump and some plumbing. I already have a KB kit so in wondering what else I really would need. Just in case...

 

[palanza7]

This is nutty, when you say built you better mean seriously built lol my engines only rated @ 900 hp.

 

[weather man]

This is nutty, when you say built you better mean seriously built lol my engines only rated @ 900 hp.

Tool steel wrist pins for sure.


OP: did you run a 3" or 3.5" collector on the header?

 

[05mustang_TT_charged]

I paid $6250 shipped for the base kit.

You'll need supporting fuel mods (injectors, pumps, etc) to support the power you want and you'll need a tune.

I do all my own work and tuning so can't tell you what that will cost.

PM me if you want to know who I purchased from.

haha, yes, the KB site is a bit of a whipping to read through.

Is this the Boost Works kit?