Mustang dyno ?

 

RR downpipe and exhaust ftw, if you can handle the loud exhaust! My S pulls so hard now with both these mods without intake.

 

Get a DoS cai

 

no it was a dynojet i believe.

 

What was the factor,outside temp,humidity? but still sounds much higher than my dynojet.

Testing on a dynojet with a stock jcw resulted in 188whp and with intercooler picked up 0 whp.(both cold pulls)

A dos cai picked up 8 whp

On a 79 degree day with humidity 46% using a sae factor of 0.98 my car made 228 whp and 225 wtq with dos cai ,meth, forge intercooler, riss catless downpipe and a riss free flow 2.5 exhaust.

 

it was summer time in jersey and im not sure what the temp/humidity was but they used a shop fan and i have all the plumbing dont the pre intercooler charge pipe the alta cold side boost tubes foam filter so i dont know i lost the print out.

 

from the numbers I am guessing your pull was on a mustang dyno because when I did a pull on a mustang my whp was up by 40.

 

No i remember for a fact it was a dyno jet because the reason i didnt get it dyno'd on a mustang was for that reason and i drove 45 min just to get an actual reading.

 

The factor the operater used must have be on the high side because there is no way that you can have 40 whp diff between 2 identical engines of our displacment. On identical big cube motors I have seen differences of 20 to 30 whp because 1 or 2 % difference equals a much greater number .

 

What year is your JCW?

 

2009

 

Hmm weird because they said their dyno Reads close to exact numbers ive had a few friends get their cars dyno'd there and they were close to what was expected. So idk.

 

Even with testing my car in the heat and humidity of florida compared to nj I still dont see a 233 whp on a stock to my 228whp with a heavier modified car.

 

Not sure. im getting it tuned in march or april by Jan we will see...

 

Jan has tried to tune my car and is now working on a specifictune for a Jcw,hope it is ready by then.

The main thing with a JCW is that the turbo is the limiting factor for building power,

can a jcw take more boost? maybe

does the Jcw run out of airflow beyond 6k rpms? yes

Macedo Motorsports /M2 Powerhouse plans to fabricate a sheetmetal intake manifold, stud the head,port and polish the intake and exhaust ports,trick valves with multiangle seats,gas flow the exhaust manifold, install higher lift cams with better springs and to go with a ballbearing ko4 .Should have all this done in the next month or 2 depending on the machineshops meeting their deadline.

 

Cant wait do u have a catless down pipe?

 

Hey James. we have similar engine mods, with the dos intake, what kind of numbers do you think i'll acheive pre/post tune with my S?

 

185ish whp pre tune 210ish whp post tune

Get Meth! Jan sells the best meth kit in the world.

 

Yes,the cat will cost you 10whp

 

This thread is SO off topic lol. oh well. I see you took your RR exhaust off James. I'm thinking about changing out the exhaust and leaving the downpipe on. Does M2 Powerhouse have a website with thier exhaust for sale on it? I'm thinking about selling this thing and gettng something a little less drone happy.

 

Mustang dynos don't read any higher than any other brand of dynos: they read what you caibrate them to read. If you paid somebody to run your car on a Mustang, and it read 40 over where it should have been, you should go get your money back.

I have seen some internet banter on this site recently in which, to substantiate an arguement, Mustangs were accused of reading high, which is nonsense. They read as high or as low as you set them.

When we started dynoing MINIs in 2001 (that's right we had one here before they were on sale in the US), we intentionally calibrated our Mustang MD-250 conservatively, so that people wouldn't call our numbers into question. We kept our calibration and correction factor consistent over the years, despite showing lower numbers than other tuners for similar products. Search the archives, you'll see our dyno referred to as the 'heartbreaker'. Again, it's not the dyno, it's how you calibrate, and set the correction factors.

 

It is not the number but the gain under the curve you are looking for.

I thank you and the mini/bmw world should be grateful that helix,Rmw and a couple of other tuners do not work the dyno#s to show false numbers .I wish more tuners and dyno operators would live by the same code

 

James, I've seen completely stock JCWs pull 203whp/208lbs on a dynojet before. I've heard of higher pulls on stock JCWs..

 

Have you seen a jcw pull 233whp stock?

 

Highest stock I've heard of was around ~220 - and that was here on NAM. Never seen higher than that 203whp for a stock MINI. I'd be highly suspicious of a 230+ claim on a stock MINI. I haven't heard of many modified ones hitting that.