My day out comparing chassis dyno's....

[Toby]

lol, excellent, in that case a standard pinto makes 102 bhp and 117 lbs/ft with no air filter and ashley system

 

[chris@torque of the devil]

Excellent stuff boxxer, well done..

 

Top, genuine, & most honest & helpful, bloke is Steve at Vulcan ..

 

 

Jeff Harris..

 

seconded, known him a while now and agree fully.

 

for the record steves own ford mondeo has been run on our dyno, a couple of BHP down on what ford claim but not much considering its not brand new.

[boXXer]

what i dont get is stuff like this, we ran a completely stock fiesta ST150 yesterday and it showed 149.7 bhp on my dyno, if that car was run on sanspeeds rollers would it show 161 bhp?, also the wheel figure from sanspeed and track and road is showing as 163 ish and we showed it as 145, huge difference there, i really dont know what to believe, my money is on the track and road dyno being 100% spot on and mine being a load of expensive red and blue shite, i give up and am now going to become a male stripper.

 

 

mate, dont get the hump! it WAS NOT about slagging off people's dyno's, and more about WHO's dyno was most accurate to MY engine on HT's dyno. Your not gunna lose any customers unless your insecure about it!

 

You saying about the Fietsa ST reminded me of something actually......

 

I went to a RR day @ Motorworx about 4 months ago, and there was a BOG STANDARD, brand new, st150 on the rollers, it made 149hp. Now, the same day, my cossie made 350hp and 390lbs of torque, BUT, on sunday my cossie made 338 on yours, so i dont get why that would be different, but the ST 150 the same.

 

like i said at the start, dont turn this post into a slagging contest, cos i'll have it deleted and start again

 

 

Hey you got me all wrong there fella!, i understand that you are not slagging anyone off, but its not your dyno showing the lowest figures is it!

 

I said from the outset well done for doing the test, its important that this stuff is shown because it can help everyone understand the limitations of chassis dyno's

 

chris

 

Deffo mate, and i wasnt having a go.

 

ANY chassis is gunna be a guess at the end of the day, as its not directly bolted to the flywheel itself!

 

i just now know who's rollers match up to my engine dyno figures, and thats who i'll use if i ever change anything.

 

coincidently, i was speaking to Steve @ T n R, and he said all the engines that come off his engine dyno, then he fits straight into a car HIMSELF, read within a couple of HP of each other. Dunno whether thats true or not.

 

Thats a fantastic comparisson, and is the best way to check the accuracy of a chassis dyno, wish i had an engine dyno too, maybe soon.

 

You should invest in one once youve got the ball rolling

[boXXer]

So if Sanspeed and Track n Road are the same as H.T. Racings engine dyno then if i run my atmo cossie at Sanspeed next week then whatever it says is right then ? yes or no ?

 

have you had it on an engine dyno before then?

No mate , no point as they make different power once fitted into a car due to air flow restrictions from the inner wings etc

 

i agree, but were talking 5hp at the absolute most. would have been a good comparison

[boXXer]

Excellent stuff boxxer, well done..

 

Top, genuine, & most honest & helpful, bloke is Steve at Vulcan ..

 

 

Jeff Harris..

 

seconded, known him a while now and agree fully.

 

for the record steves own ford mondeo has been run on our dyno, a couple of BHP down on what ford claim but not much considering its not brand new.

 

Was it not 20-25hp down or something on a 60k engine?

[Toby]

 

You should invest in one once youve got the ball rolling

 

And the road!!

 

Now?

 

 

Ok

 

[kevmk2]

Interesting stuff,so my old favorite sanspeed still come up trumps

Pity you couldnt of gone to Paul hills too,but thats even more of a trek

I would like to know how much they charged,as i would like to see what my engine makes now with 2 bar of boost. It was 438bhp with 1.4bar

 

TBH mate, everyone knows Engine advantages rollers over-read. bit like powers do! i managed to get 310hp on yellows there.

 

 

Thats strange cos my old engine was 405bhp on the dyno at field motorsport and 403.7 at engine advantages

[Guest MK1gaz]

So if Sanspeed and Track n Road are the same as H.T. Racings engine dyno then if i run my atmo cossie at Sanspeed next week then whatever it says is right then ? yes or no ?

 

have you had it on an engine dyno before then?

No mate , no point as they make different power once fitted into a car due to air flow restrictions from the inner wings etc

 

i agree, but were talking 5hp at the absolute most. would have been a good comparison

Hard to say really mate as even the increased heat from an engine bay can upset the power compared to the open nature of an engine dyno . The open clear path for air to enter the engine is far greater on an engine dyno than in a car and could easily be worth 10 bhp . Even fitting a new air filter on my engine cost it 16 bhp on Saturday

[boXXer]

dunno mate. I just know i got a stupid power figure on my 3dr that was on yellows.

[chris@torque of the devil]

Excellent stuff boxxer, well done..

 

Top, genuine, & most honest & helpful, bloke is Steve at Vulcan ..

 

 

Jeff Harris..

 

seconded, known him a while now and agree fully.

 

for the record steves own ford mondeo has been run on our dyno, a couple of BHP down on what ford claim but not much considering its not brand new.

 

 

Was it not 20-25hp down or something on a 60k engine?

 

 

 

er no it was not, i can post the graph up tomorrow if steve does not have it, who on earth told you that?

[boXXer]

So if Sanspeed and Track n Road are the same as H.T. Racings engine dyno then if i run my atmo cossie at Sanspeed next week then whatever it says is right then ? yes or no ?

 

have you had it on an engine dyno before then?

No mate , no point as they make different power once fitted into a car due to air flow restrictions from the inner wings etc

 

i agree, but were talking 5hp at the absolute most. would have been a good comparison

Hard to say really mate as even the increased heat from an engine bay can upset the power compared to the open nature of an engine dyno . The open clear path for air to enter the engine is far greater on an engine dyno than in a car and could easily be worth 10 bhp . Even fitting a new air filter on my engine cost it 16 bhp on Saturday

 

you probably lost that much cos air couldnt get into the carbs properly. I have been told by MANY engine builders/tuners that 1" is enough to get maximum flow into the carbs, and mine is more than that. You had like 15mm or something didnt you?

[boXXer]

Excellent stuff boxxer, well done..

 

Top, genuine, & most honest & helpful, bloke is Steve at Vulcan ..

 

 

Jeff Harris..

 

seconded, known him a while now and agree fully.

 

for the record steves own ford mondeo has been run on our dyno, a couple of BHP down on what ford claim but not much considering its not brand new.

 

 

Was it not 20-25hp down or something on a 60k engine?

 

 

 

er no it was not, i can post the graph up tomorrow if steve does not have it, who on earth told you that?

 

must have heard wrongly then!

[Posse]

Mad man boxxer m8 it sounds like you had a proper road trip and a expensive one at that

[Guest MK1gaz]

you probably lost that much cos air couldnt get into the carbs properly. I have been told by MANY engine builders/tuners that 1" is enough to get maximum flow into the carbs, and mine is more than that. You had like 15mm or something didnt you?

Yes the filter is about 15mm from the tip of the trumpets (not measured it yet) but it's all foam over the whole front and sides so you wouldn't think that it wouldn't lose that much power really . Just goes to show how much extra power can be had by having an unrestricted air flow path into an engines throat . They should really stick a flat plate infront of the trumpets when doing an engine dyno test to simulated the innerwing , at least it's a bit more of a comparision .

[boXXer]

you probably lost that much cos air couldnt get into the carbs properly. I have been told by MANY engine builders/tuners that 1" is enough to get maximum flow into the carbs, and mine is more than that. You had like 15mm or something didnt you?

Yes the filter is about 15mm from the tip of the trumpets (not measured it yet) but it's all foam over the whole front and sides so you wouldn't think that it would lose that much power really . Just goes to show how much extra power can be had by having an unrestricted air flow path into an engines throat . They should really stick a flat plate infront of the trumpets when doing an engine dyno test to simulated the innerwing , at least it's a bit more of a comparision .

 

do you know what? i was thinking the EXACT same thing today. i'd be scared of my hand being sucked in by the carbs though

[boXXer]

Mad man boxxer m8 it sounds like you had a proper road trip and a expensive one at that

 

'twas a long old day mate!

[Guest MK1gaz]

We'll buy H.T. racing a secondhand innerwing and make sure they stick it infront of the trumpets next time

[boXXer]

PMSL!

[chris@torque of the devil]

Excellent stuff boxxer, well done..

 

Top, genuine, & most honest & helpful, bloke is Steve at Vulcan ..

 

 

Jeff Harris..

 

seconded, known him a while now and agree fully.

 

for the record steves own ford mondeo has been run on our dyno, a couple of BHP down on what ford claim but not much considering its not brand new.

 

 

Was it not 20-25hp down or something on a 60k engine?

 

 

 

er no it was not, i can post the graph up tomorrow if steve does not have it, who on earth told you that?

 

must have heard wrongly then!

 

you did indeed, i will pull up the graph tomorrow

[Vulcan Engineering]

My god,

I thought that this might calm things down but it looks like its stirred things up & I can only apologies as I didn’t mean it to, I only put my money were my mouth is trying to help as I always do.

On Boxxers Engine you are all talking about 4% between rollers, I done this to prove to my self that in the car My customer would see the numbers that I showed them on the dyno sheet that I give them

Everybody is think about Numbers ,Numbers ,Numbers, Numbers

 

Please remember

The most important thing is how it drives & if you think that it runs as good as is should No misfires ,no det ,ect & if you got value for money on the Engine that you purchased.

Like I have said already choose a rolling road that you are happy with & stick to it IT’S YOUR BENCH MARK FOR FURTHER CHANGES.

If you can’t find a rolling road that you are happy with out of all of them in London then take your Engine out of the car & put it on a Real Dyno like HT’s or Roushes

[boXXer]

Excellent stuff boxxer, well done..

 

Top, genuine, & most honest & helpful, bloke is Steve at Vulcan ..

 

 

Jeff Harris..

 

seconded, known him a while now and agree fully.

 

for the record steves own ford mondeo has been run on our dyno, a couple of BHP down on what ford claim but not much considering its not brand new.

 

 

Was it not 20-25hp down or something on a 60k engine?

 

 

 

er no it was not, i can post the graph up tomorrow if steve does not have it, who on earth told you that?

 

must have heard wrongly then!

 

you did indeed, i will pull up the graph tomorrow

 

no ones 100% mate would be good to see

[chris@torque of the devil]

you have done no wrong steve, as i said, its a great exersise to do these comparisons, obviously because my dyno came up with the lowest figure of all (on a different day unfortunately) i'm more than interested.

[Guest MK1gaz]

Talking of graphs , heres my old Harris pintos 185 bhp Sanspeed graph then Mr retromotorsport . Twin 45's and points

[Vulcan Engineering]

Woo woo

 

My car gave 136 HP & 136 TQ On TOTD Rollers & its dont 60K so I was happy with that Fords quote 144HP & 136TQ (New)

 

Do you all want me to spend another £100+ £ to prove that as well ???

 

This is geting out of hand now

 

ROLLING ROADS ARE ROLLING ROADS & DYNO'S Are DYNOS they both do the same thing but the NUMBERS Might vary , but its all down to the operator & there knollage & Dont know any of them that dont know what they are doing

[boXXer]

looking at that graph, it looks like you had quite a few runs, and only once it made that power. i would be inclined to follow the average ones that are grouped together.