Well, then let me ask you a very simple question Paul. If dynos don't matter, why are you so concerned with them? You spend an awful lot of time trolling sites looking for dyno plots to justify the difference in the numbers, and then you come back and say they don't mean anything.

Two posts above, JAW was asking what seemed to be legitimate questions about his dyno numbers. Are you telling your customer that it doesn't matter?

I agree that the dyno is a tuning tool, used mainly to record deltas with parts changes. That being said, with probaby the hundreds of minis that have been done on Church's dynos and the probably hundreds of other types of performance cars, not to mention the numerous world records, Church's dyno is a pretty good standard for comparing numbers. It's unfortunate that you don't have access to it due to location, but it is what it is and that's what many of us go by in the US. After looking at what few dyno charts you have posted, I am convinced there is more hp to be had with the cars in the UK, but you're gonna have to work harder to find it.

 

The only parts my car is missing that Jan would recommend is the header and catback, however one Uk guy bought the full race system and for whatever reason it didn't give him the missing hp and then another guy bought the shorty header which didn't seem to work so Jan sent another but the results were the same.

The only thing left to play with would be the tune once the headers were fitted, but I am sure 1320 would have tried different tunes to try and get the most out of the parts.


Or maybe Jan needs a trip to the UK to do some tuning in person rather than remote??

 

There are a few people in the UK that use the same dyno everytime after mods have been done as whether the dyno reads high,low or whatever the gain is what you look for.

I used 1320s dyno to show what I had before mods and then again once mods were done (this dyno seems to read correct as if give the same value as the 1/4mile)

I have also been to a different type of dyno and got the same figures +/- 2/3hp so I know I have X power. But then I have backed the figure up again via the 1/4 mile terminal speed so I am almost certain I make X hp


The point Paul was making is that you do get dynos that read high,low and somewhere in between, but the car still has the same performance even though it made 270bhp on one dyno but 250bhp on another

 

It sounds like you are on the right track. I can't speak for Jan, but after the way you guys have gone after him on the forums, I can't see him coming to help you guys out.

Good luck.

 

I understand what you are saying, but we have hundreds of minis on the same dyno to compare against, and more importantly, I'm not concerned with how my car performs against three cars in the UK.

 

Fair point that you are not concerned with a few cars in the UK but we would like to know how our cars compare to the hundreds in the US

We could be trying to find power that isn't there without changing the M45 to TVS or 1.6 to 2.0 etc

 

I see. I put up 240ish on a Mustang dyno and a Dynapak. Wildly different weather too. My big turbo'ed 450whp STI buddy drove it and remarked 'it pulls hard as hell and has a flat power curve!'. That reinforced my numbers a bit.

 

Your power is not abnormal though, it is around what we are seeing in the UK

I have made 235WHP with temp clipping.



Bet the scooby feels very quick

 

I've seen enough mini dyno plots to know that you are down on power. Unfortunately, 1320 has conducted themselves in such a manner that it has put them on an island when it comes to getting any information. After seeing how my car reacts to slight tuning changes over many dyno sessions, and looking at your graphs, it appears you are indeed 20 or more hp behind. I will reiterate, tune and exhaust. You don't have the right combination of everything yet. It takes many, many hours R&D and tuning on the dyno. You have to put in your dues. Again, good luck.

 

Out of interest what AFR do you see between 6000rpm-7000rpm and 7000rpm-7600rpm if you have your graphs handy

 

Nice try. That's part of your tuner's solution. You can try asking Chris or Jan, but I would guess you won't get it from Jan. In my world, that's Jan's intellectual property.

 

It is no big secret but I wanted to compare my AFR to yours. I know there is more power up top but my power at the moment is safe power Looking at my graph from an independant RR I am in the 10's at the RPMs I said above. Lean it off a bit and I would have more power

 

Next thing you know people are gonna be calling my Numbers BS because of how many miles are on my car.
This thing is retarded.

 

11.5 to 8000

And you should see my inlet temps .

Longboard

 

10's .

Pig rich and yes, very very safe .

Longboad

 

Nothing like 550s to get it done

 

I assure you this doesn't happen all the time, but I was being a bit lead footed on the way to work and went from 3k to 7500 in 4th and my inlet temps went from 8 to 27 and the car pulled really hard and I thought of you...........

Inlet temps nothing else

 

i've read all this crap, and i have just one question: who won this round?

 

The other thing very "cool" about my set up is water temp. The coolant runs through the head and block just like a cooper which keeps things much cooler the the way the S runs.

Longboard

 

Aww come on, its not about winning and losing, its about sharing with the community.

 

do as I say

Not as I do

 

Nobody wins we're all loosers, I mean we sit at these computers bitching about a load of numbers.

HOW SAD IS THAT

My 9 year old points this out to me all the time

 

HP per post or is it post to HP gain?

 

I don't ever recall having an issue with my dyno numbers or lack of 1/4mile times?

 

That's why my MINI and I had some alone time today in the sun. I purposefully have an uncomfortable computer chair so I don't waste time monitor watching.

Paul, Jan and other tuners: what inlet temps do you like to approach before dyno pulls? 5-10 degrees F over ambient??? Or do you strap it down, turn the fans on full blast and pull/tune away? Thanks.

Jeremy