keene bell blower blues

[Marc s]

Very cool!

 

[Scord]

Thats much better... what PSI did it end up putting out? 6 or closer to 10?

 

[TexasBlownV8]

Thats much better... what PSI did it end up putting out? 6 or closer to 10?

Indeed. With a similar 130mm tb and automatic, plus other engine mods, I'm curious what the 'other mods' are doing as far as adding power.

Any idea what timing you're running WOT as well?

...and congrats for getting it ironed out

 

[Blxcklist]

Very cool, if you ever get over the the eastern side of Idaho shoot me a PM I'd love to see that KB!

 

[gemstang]

blower blues

I'm running 11psi, not sure of the WOT (I'll check the with tuner). The amount lower end torque is great to have. Looking into going to firebird raceway here in Idaho this summer to due a couple of runs and/or the Bonneville salt flats (about 4 hours away from Boise).

 

[TexasBlownV8]

That'll be fun
What tires are you running now? Getting any traction when you get into it?
Be careful until you get used to the new power!

For pulley, are you running the 3.75" or 3.5"?

 

[Big50]

I'm running 11psi, not sure of the WOT (I'll check the with tuner). The amount lower end torque is great to have. Looking into going to firebird raceway here in Idaho this summer to due a couple of runs and/or the Bonneville salt flats (about 4 hours away from Boise).

What's the a/f ratio. Those numbers actually seem low for 11 psi on a kenne belle. I would expect at least 470whp/440wtq with that boost level.

 

[TexasBlownV8]

..my questions are along the same lines, as I'm seeing higher power levels with a 3.5 pulley, larger TB, and automatic trans. With little/safe timing (around 8*), I was seeing 430 or so at the wheels.

 

[Marc s]

..my questions are along the same lines, as I'm seeing higher power levels with a 3.5 pulley, larger TB, and automatic trans. With little/safe timing (around 8*), I was seeing 430 or so at the wheels.

That is very safe.

 

[1lowtoy]

..my questions are along the same lines, as I'm seeing higher power levels with a 3.5 pulley, larger TB, and automatic trans. With little/safe timing (around 8*), I was seeing 430 or so at the wheels.

Are you saying 430 with the stroker motor? Also, you need to be just as carefull running way to much retarded timing as you can run the exhuast valves too hot.

 

[maxdmax]

We installed a KB 6.2 stage II on my Son's 2005 Mustang GT and got 440 HP @10psi with 19 degrees of timing with the A/F at 11.5. I would also be interested to know your setup?

 

[Simon]

We installed a KB 6.2 stage II on my Son's 2005 Mustang GT and got 440 HP @10psi with 19 degrees of timing with the A/F at 11.5. I would also be interested to know your setup?

The secret (so I have been told) to power in the 3V motors when tuning the VCT is knowing how to dial in the cam timing. @ 19 degrees of timing I would expect 500 rwhp. I'm at 17.5 running 475 with a 10 psi pulley.

A little experimentation with the cam timing will generally result in the same peak rwtq, but it flattens out a little bit more and you get some more HP.

It also kind of depends what RPM you went up to. Some guys have the same exact tune but one stops at 6000 and the other go up to 6800. Makes a difference.

 

[Riptide]

Did you get a pulley with it madmax? Stage 2 according to their documentation uses the same pulley as the Stage 1. Only difference is the throttle body and the tune.

 

[TexasBlownV8]

Currently I'm running the 3.5" pulley and seeing 10-11 psi, 17* of timing. Don't know the true HP, because on the dyno, the wheels were hopping a little, and the graph was like a sawtooth, but still charted 470 hp (with chewed up tires ). When we started dyno tuning, the graph was more linear at the lower power levels. All this was done in 3rd gear.
And fwiw, we were seeing roughly 10 hp gain per 1* of advanced timing, up to a point.

..waiting for a dyno day to see what it really is putting down, but I dont really care, as it runs really great!

 

[BLKS197]

Your running aftermarket headers with the stock KB tune? Their instructions say that's a no-no.

I saw a buddy put four windows in his 2V doing this.

 

[gemstang]

My tires are a set of 255/45/18's BFGoodrich GFORCE T/A KDW on Ford SVT rims. I know I could get more power/torque however for now I happy with the results. I plan on getting another engine (new cams, heads etc.) that is built to handle a blower and bump the boost of to 15-18 psi.

This is what I currently I currently have 18 degrees of timing with the A/F at 11.5. ( 429 rwhp/ 390lbs trq). It is not so much of an issue with power more a problem with traction when coming off of corners. Looking at upgrading the suspension (structs/shocks/ control arms)next. I do use this car as my part time daily driver commuting 80 miles a day at 75ish mph on the freeway

 

[maxdmax]

The secret (so I have been told) to power in the 3V motors when tuning the VCT is knowing how to dial in the cam timing. @ 19 degrees of timing I would expect 500 rwhp. I'm at 17.5 running 475 with a 10 psi pulley.

A little experimentation with the cam timing will generally result in the same peak rwtq, but it flattens out a little bit more and you get some more HP.

It also kind of depends what RPM you went up to. Some guys have the same exact tune but one stops at 6000 and the other go up to 6800. Makes a difference.

Not sure what he did on the cam timing, but I think he set the rev limiter at 6,200 or 6,800 (I asked him to go conserative on this, it is my 19 year old Son you know). I will check with him and I need to get the dyno chart from my Tuner and post it. These numbers are from a dynojet 224 dyno, what type on dyno did your numbers come from? I hate running 2 more degrees of timing and putting down less HP from the car. Keep in mind the car has a 4:10 gear and we are using a dynojet. Not sure, but we may need to figure out what is holding the car down to 440 rwhp with 2 more degrees of timing. Are you using the KB tune or did you also have your's dyno tuned?

Did you get a pulley with it madmax? Stage 2 according to their documentation uses the same pulley as the Stage 1. Only difference is the throttle body and the tune.

It is what ever the kit came with for the SC, but it does hit 10 lbs of boost, we had a boost guage on it on the dyno and I saw it go to 10psi

 

[Simon]

Not sure what he did on the cam timing, but I think he set the rev limiter at 6,200 or 6,800 (I asked him to go conserative on this, it is my 19 year old Son you know). I will check with him and I need to get the dyno chart from my Tuner and post it. These numbers are from a dynojet 224 dyno, what type on dyno did your numbers come from? I hate running 2 more degrees of timing and putting down less HP from the car. Keep in mind the car has a 4:10 gear and we are using a dynojet. Not sure, but we may need to figure out what is holding the car down to 440 rwhp with 2 more degrees of timing. Are you using the KB tune or did you also have your's dyno tuned?



It is what ever the kit came with for the SC, but it does hit 10 lbs of boost, we had a boost guage on it on the dyno and I saw it go to 10psi

Mine is custom tuned and I run 15 psi usually.

Mine was a dyno jet also.

If you ran it up to 6800 it would be closer to what most guys on here dyno their car to. That maybe why it is at 440 rwhp. Another 800 RPMs and the thing may break 500. Never know til you try.

I will be going on the dyno April 2nd. Might get another dyno graph.

 

[Riptide]

@maxdmax

4.10 will sap a little power on the dyno.

Did you buy the kit new? I can't remember. I'm running the pulley it came with and typically don't hit over 8.5psi. Makes me wonder if the stage 2 throttle body makes a bigger difference than their documentation seems to indicate.

I wish KB was better about explaining things in their documentation. They are pretty clear about not exceeding redline and they refuse to raise the limiter over stock in their tunes. But they never really explain exactly why. Is it a limitation of their tune, not enough fuel capacity with the stock kit components, etc.?

 

[TexasBlownV8]

I agree, w/o doing dyno runs between swapping throttle bodies, who knows exactly how much difference the 130mm tb will make on your car. Or other mods for that matter, other than their advertised difference with using an electric water pump (oh, I'm using one of those, too).


If y'all need some different 6-rib pulleys, let me know; I'm going to an 8-rib setup and have a few different sizes (ok, maybe a shameless plug, but wth).