Just a small correction it is 3500-6000, and if you even read that thread at all you would know that Andy does not believe this is the best way to measure performance because there are way too many variables to be taken into account for it to be accurate! Making 188 whp on just a pulley is a bit optimistic.

 

Uhmm, so what?

Some ppl thinks so and others don't

So who to believe

 

I'll second this.....

I think the first thing is to dyno your car completely stock and find out what your dealing with. Some people are lucky and have an above average car to start with. If you are one of the lucky ones that has an above or way above average car you have to do a lot less. The smaller pulley (non twin chg) is the single biggest improvement I have found.

My opinion still stands.....200 is achievable but expensive 180-190 can be had for about 1/4 the cost and the law of diminishing returns is hard at work here.

The more I think about it the strength of the Mini is its handling so things like springs shocks, sway bars and brakes after stage 1 .....in my opinion do more to improve the car per $ spent than the next $4000 in engine mods.....

.

 

Personally I think it is an interesting way to measure performance on your car with different modifications. I have no problems with this method as I am a poor college student and am not able to afford to take my car to a dyno.

 

I only said that because you mentions one persons name.

Everyone has different opinions so I think its better to listen to all of them and reach your own conclusions.

 

I agree, but with any statistical endeavor, you should throw out any outliers. So, ignore the people with the highest hp claims and the people with the lowest hp claims.

 

Agreed. look at the top of the normal curve, maybe withing 1 standard deviation makes sense.

 

I know Andy doesn't agree with the 3rd gear pull.

Think what you want about the power, I have three cars with that pulley on it that have all made 185-188 on 2 different dynos. But then again these pulleys were not manufactured by a MINI specialist or installed by the sacred Randy Webb so these things couldn't possible make power.

Just to complete making this post politically correct, the self proclaimed "Doctor" never touched the car either.

 

and if you don't belive the car makes 200whp on a 15% pulley... just look at our time slips... weve posted them before... well post them again... our cylinder head makes very good horsepower and torque gains... all of the power is coming from our cylinder head. You do not need to run a 19% pulley to get these kinds of numbers! Just a good cylinder head... 15% pulley and a good tune!

as far as making 188hp on a 15% pulley... Many of the cars that have my 15% pulley have made 188whp... Tuls... a member of the mighty FTR racing made that number with my 15% pulley.

and no we don't do anything special when we dyno to skew numbers... we don't run race gas... we put a fan in front of the car... twist the key... and mat the gas... thats it! No speical tricks...

 

Ok just some food for thought here, the strongest I have heard of a stock car pulling on a dyno is 155 whp. I think that a pulley will add around 15hp maybe 18 tops! so with a bit of arithmetic that will take to between 170-173 whp. Sorry if I am being a nit picker but adding 23+ horsepower with just a pulley is not heard of.

 

the highest whp i have heard of is 160-162 at the wheels... i believe that again was by tuls... a member of FTR...

and we regularly see about 20ish whp out of our 15% pulley...

 

http://www.mini2.com/forum/showthrea...=104521&page=3

post #46. The devil talking (Kumho)

 

This is a for fun only as a quick cheap way to look at performance.......not laboratory, clinical or certified by anyone....... just for fun......easy on the eye rolls

 

Hubie turned me on to this and then put one in and tuned it on his dyno.
http://www.cardomain.com/item/APX401A911

 

I went to that thread and it is too funny. You can see why he was thrown off of NAM . He still has not learned to play well with others LOL . I wonder how long they will take it there.

http://www.mini2.com/forum/showthrea...=104521&page=3

 

He kind of got their ire up a bit.

 

Does anyone else have any knowledge or experience on this product, good - bad??

 

The SPI twincharge kit comes with it and it does it job well!

 

May I have some proof?

 

Don't have the 188 with me, but do have a 186.2

 

Congratulations on your ability to pass 1st grade math!!! But it looks like your wealth of knowledge on the MINI has been disproven.

And just because you think, doen't mean it is accurate or correct.

 

I think this could be termed a VERY friendly dyno Factors such as frequency of calibration, operator competency, and correction measures all make for wonderful discussion material. For example there was a local dyno giving some wonderfull numbers in our area and then it was discovered that it had not been calibrated since it was installed 7 years ago. Oh well it was impressive while it lasted.

 

i love to keep bringing this up...
dyno at helix: headwork, one-click, 19% (first pic)
then dynoed at Hubies...no pic but read high 180's;
then Apexi, tuning A/F: hit 198 (no pic)
then added 440 injectors and re-tuned: pic, note the nice A/F:

months later did another run at helix and made about 190, ho hum

 

Those are some nice charts JLM. It is funny you mention your A/F . It does look real good and apparently you used the APXI to really dial it in. What is confusing is that the dyno plot from Motorsports3 shows a even better A/F and all he has is a pulley? Something odd here , any thoughts?

 

My thought: software. He clearly has some either AF controller or software tune on it to keep such nice AF numbers. The above two, of course, would embellish the gains of a pulley, imo .

Isellem, since you are so self-assured in the quality of your pulley as to patronize people like you do, what exactly is so special about your 15% pulley? If it makes so much more power [>26-28 whp from the pulley or whatever you claim- if the highest stock number you've seen was 160, so motorsports made maybe even more??? ], it seems quite likely to me that it would have to a) spin the SC faster [is that 15 really a 19? ] or b) spin the supercharger faster or c) you get the idea. If nothing but the pulley changes, you cannot improve the performance of the system beyond making the SC pump more air. Or, does this pulley also cool the air charge, too ?