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Dyno time @ devildevelopments


binfieldx

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So by everyone's dyno graph bashing, Devil Developments dyno is wrong? Does that mean all of SRD's cars that have been run on that dyno have got less power than the graph suggests? All I see when Lee has one dyno'd on there is "Wow, good figures!" Nobody ever questions those figures from the SAME dyno, so why is Toms print out instantly brought into question?

 

The "maximum of 380bhp at BPU" argument is about as accurate as "J-Spec turbo's will explode if you go above 1.2 bar..."

 

 

Got it in one!!

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So by everyone's dyno graph bashing, Devil Developments dyno is wrong? Does that mean all of SRD's cars that have been run on that dyno have got less power than the graph suggests? All I see when Lee has one dyno'd on there is "Wow, good figures!" Nobody ever questions those figures from the SAME dyno, so why is Toms print out instantly brought into question?

 

The "maximum of 380bhp at BPU" argument is about as accurate as "J-Spec turbo's will explode if you go above 1.2 bar..."

 

Not sure why no one uses SSR anymore I did read something about warn out rollers caused issue with the big HP cars but bpu small single is probably just fine .Imo reason no one has mentioned the others is most of them are singles and to many different variations of mods turbo ar/boost/ecu/list goes on where as bpu is pretty straight forward been covered for years within a rough margin we all know what to expect. This red one http://www.mkivsupra.net/vbb/showthread.php?321740-Matts-Red-RZ-S-6-speed-Dyno-Run made 455 and 450 of torque at Devil . Be interesting if one of these did a run at SSR to compare

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I think the rumor about SRR is worn rollers and losing grip iirc.

 

Still, my main point being, until someone fits a single turbo, parades get p!ssed all over.

 

And the American's are meant to be the ones with "optimistic" power figures...

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So by everyone's dyno graph bashing, Devil Developments dyno is wrong?

 

Not sure what dyno bashing you are referring to, things posted on a public forum that appear out of the ordinary are bound to get scrutinised, as already been said the graphs look good and I too would be happy with the result :thumbs:

 

Its also been mentioned on here time and again that each dyno will produce different results as too many variables involved, a dyno is a tremendous tool for setting up, tuning and checking how your mods have affected the overall performance, obviously its best to use the same dyno over and over for best comparison ;)

 

The "maximum of 380bhp at BPU" argument is about as accurate as "J-Spec turbo's will explode if you go above 1.2 bar..."

 

I think the arguments are based on years of experience from long standing members and also some basic calcs, ie a 440cc injector at a given fuel pressure can only flow a certain amount of fuel, also the 1.2bar argument comes from a few things, one of them being that the JSpec MKIV are MAP based not MAF, the MAP sensor is only rated to approx 1.2bar so above that you are relying on the fuel pressure increasing with boost to keep delivering more fuel, also JSpec turbos are ceramic not steal and don't seem to last as well as the UK/US counterparts.

 

Ignore all the brochure readers mate lol You may have uprated internals engine and turbo wise that you don't know you have ! I say well done fella nice results ;-)

 

This is a possibility, wouldn't be the first time people have discovered nice treats on their imports :thumbs:

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So by everyone's dyno graph bashing, Devil Developments dyno is wrong? Does that mean all of SRD's cars that have been run on that dyno have got less power than the graph suggests? All I see when Lee has one dyno'd on there is "Wow, good figures!" Nobody ever questions those figures from the SAME dyno, so why is Toms print out instantly brought into question?

 

The "maximum of 380bhp at BPU" argument is about as accurate as "J-Spec turbo's will explode if you go above 1.2 bar..."

 

 

I think you getting the wrong end of the stick mate, there is no "dyno bashing" going on, just trying to generate a bit of interesting discussion, but if people are just going to get out of their prams about it i'll not bother.

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I think you getting the wrong end of the stick mate, there is no "dyno bashing" going on, just trying to generate a bit of interesting discussion, but if people are just going to get out of their prams about it i'll not bother.

 

I just can't comprehend why people would question a power figure on one car, but not the vast amount of SRD cars that go on there.

 

By the argument of "So many variables" etc, BHP figures should be banned across the board if they're that inaccurate.

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If I was the OP I'd check in the passenger footwell to see if there is a non-standard ECU hiding under there, I'd also check what injectors are fitted. Looking at the first dyno plot the power is dropping off before the redline which would suggest it's running stock cams but it could very well have hybrid turbos, fueling mods and aftermarket ECU.

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If I was the OP I'd check in the passenger footwell to see if there is a non-standard ECU hiding under there, I'd also check what injectors are fitted. Looking at the first dyno plot the power is dropping off before the redline which would suggest it's running stock cams but it could very well have hybrid turbos, fueling mods and aftermarket ECU.

 

Agreed. This is why I bought a totally stock car - So I know exactly what I had to build on.

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ECU is stock, Lee told me he's pretty sure it had an aftermarket one fitted before as things have been tampered with. The car had stickers pasted inside all over the dash which represented different parts it had fitted, like tein for the coilovers etc. It had a BEE R* which was removed before I had bought it in Japan so i'll assume it had something from them in there but i'll never know what...

 

 

Fuelling should also be stock as Lee had to replace my tank and pump so I imagine he would have spotted something and told me if so?

 

I'm still putting money on it's voltage regulator...:D

Edited by binfieldx (see edit history)
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Not sure what dyno bashing you are referring to, things posted on a public forum that appear out of the ordinary are bound to get scrutinised, as already been said the graphs look good and I too would be happy with the result :thumbs:

 

Its also been mentioned on here time and again that each dyno will produce different results as too many variables involved, a dyno is a tremendous tool for setting up, tuning and checking how your mods have affected the overall performance, obviously its best to use the same dyno over and over for best comparison ;)

 

 

 

I think the arguments are based on years of experience from long standing members and also some basic calcs, ie a 440cc injector at a given fuel pressure can only flow a certain amount of fuel, also the 1.2bar argument comes from a few things, one of them being that the JSpec MKIV are MAP based not MAF, the MAP sensor is only rated to approx 1.2bar so above that you are relying on the fuel pressure increasing with boost to keep delivering more fuel, also JSpec turbos are ceramic not steal and don't seem to last as well as the UK/US counterparts.

 

 

 

This is a possibility, wouldn't be the first time people have discovered nice treats on their imports :thumbs:

 

Just a quick one, the j-spec VVTI's are MAF also, not MAP

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