Rolling Road Graph Thread - Post Your's

[Anthony 1,003]

Interesting, as that's the first proper comparison I've seen on a '6 plenum inlet vs ITB's where everything else is equal, and on a mildly tuned engine it doesn't look like the '6 inlet is too bad at all really, particularly given that there's nothing in it below 5k.

[chipstick 382 1 Cars]

Interesting, as that's the first proper comparison I've seen on a '6 plenum inlet vs ITB's where everything else is equal, and on a mildly tuned engine it doesn't look like the '6 inlet is too bad at all really, particularly given that there's nothing in it below 5k.

 

I will able to provide a similar comparison next week.

 

Had mine rolling roaded with a standard GTi6 engine in March, and Sandy will be mapping it next week with the ITB's. No other changes inbetween.

 

I will then take it back to the same people who did it in March to see how much different the figures are to gauge how accurate the existing reading may have been.

[kyepan 291]

Interesting, as that's the first proper comparison I've seen on a '6 plenum inlet vs ITB's where everything else is equal, and on a mildly tuned engine it doesn't look like the '6 inlet is too bad at all really, particularly given that there's nothing in it below 5k.

There's that dip between 3-5k rpm we keep seeing on mi-16s with shorter exhaust manifolds, more pronounced because of the pulse tuning the bodies give..

Edited August 14, 2012 by kyepan

[saveloy 8]

Here are the graphs for my old 1.9 TT. It ran about 1 bar of boost, had a Mi16 lightened/balanced crank, flowed head & OMEX 500 management, amongst other things.

 

220 BHP @ 5300 rpm & 240 LB/FT TORQUE @ 3815 rpm

 

 

 

Kyri

[kyepan 291]

240 LB/FT TORQUE @ 3815 rpm

s*it the bed... thats 300LB/FT per ton.. did it have any problems with traction?

 

must have been a bit like this

 

http://www.youtube.com/watch?v=ygE01sOhzz0

[saveloy 8]

Kyepan,

 

Do you know what? It didn't. The car is well known here. Of course it would spin it all away in the wet if I wanted it to, but generally speaking it was very impressive. My GTI6 was far more keen to spin up from a standstill - frustratingly so. And the 205 hung on tenaciously in the corners, so the torque was very usable.

 

Kyri

[Simes 248 2 Cars]

Interesting, as that's the first proper comparison I've seen on a '6 plenum inlet vs ITB's where everything else is equal, and on a mildly tuned engine it doesn't look like the '6 inlet is too bad at all really, particularly given that there's nothing in it below 5k.

 

Yep, not much in it until you drive it!!

The difference is right across the range from idle all the way to the top. To coin a phrase throttle response is much improve too and general drivebility.

[Simes 248 2 Cars]

Kyepan,

 

Do you know what? It didn't. The car is well known here. Of course it would spin it all away in the wet if I wanted it to, but generally speaking it was very impressive. My GTI6 was far more keen to spin up from a standstill - frustratingly so. And the 205 hung on tenaciously in the corners, so the torque was very usable.

 

Kyri

 

I remember a passenger ride in this back in 2004 - ahaa. :)

Indeed a very well known car on here and on the PSC - I'll dig out the 4x205GTI magazine feature

 

(Hello Kyri, are you still based on Portobello road?)

[saveloy 8]

I remember a passenger ride in this back in 2004 - ahaa. :)

Indeed a very well known car on here and on the PSC - I'll dig out the 4x205GTI magazine feature

 

(Hello Kyri, are you still based on Portobello road?)

 

Hey Simes,

 

How are you doing? No, I sold the shop on Portobello Rd. I've been free since January.

You are referring to the Practical Classics feature at Bruntingthorpe. I have a couple of hard copies here. And here is a link to the photos:

 

http://s1201.photobucket.com/albums/bb348/saveloy/Pugs/

 

Kyri

[Simes 248 2 Cars]

That's the one - great photos too.

Traffic Grand Prix hilarious - happy days!!

[saveloy 8]

That's the one - great photos too.

Traffic Grand Prix hilarious - happy days!!

 

Aaaah yes, them were the days. Dino on video duty - I was with him recently out on a driving trip in Europe.

 

Kyri

[Simes 248 2 Cars]

Yep, I heard you've got an M1 - I'll be joining that club soon albeit in a Touring!

[saveloy 8]

Yep, I heard you've got an M1 - I'll be joining that club soon albeit in a Touring!

 

Who told you that then? Yes, I picked her up on 1st February. And she is absolutely awesome.

 

 

http://s1201.photobucket.com/albums/bb348/saveloy/BMW%201M/

 

Kyri

[Alastairh 47]

Who told you that then? Yes, I picked her up on 1st February. And she is absolutely awesome.

 

 

http://s1201.photobu...veloy/BMW%201M/

 

Kyri

 

Jammy git.

[Baz 421]

Bored of it yet Kyri??

[cybernck 402 1 Cars]

Wow, amazing photos from that magazine feature!

 

I've only seen the engine bay and wheel ones before.

[saveloy 8]

cybernck,

 

It was a fun day & yes, the photos are fabulous.

 

Alastair,

 

I don't know about lucky - I had to buy it.

 

Baz,

 

Are you s*itting me? Since I've owned it there has barely been a day that I've not jumped in it just for fun. It's like the orgasm that never ends.

 

Kyri

[saveloy 8]

And here are the graphs for a standard & modified 1M.

 

 

 

Kyri

[welshpug 1,657]

Ooft! What mods?

[saveloy 8]

Ooft! What mods?

 

The purple graph - larger intercooler & exhaust.

The green graph - larger intercooler & exhaust, plus a re-map.

The red graph is standard. But as you can see the figures are higher than the BMW quoted outputs of 340 BHP/370 LB/FT TORQUE, which are conservative.

Most 1Ms produce about 360 BHP & 415 LB/FT TORQUE.

 

Kyri

[Henry 1.9GTi 36]

1.9Mi16

 

Standard with Colin / Sandy TBs, GTi-6 injectors, Some metal pipe out the rear figures are ATW (hubs)

 

edit: pic looks rubbish!! will try and improve

 

ah bollocks to it, I screwed the original image. It was 155bhp 133lb/ft with a flat region in power between 6-7krpm SO THERE!

Edited August 21, 2012 by Henry 1.9GTi

[Simes 248 2 Cars]

155 at the fly??

[Baz 421]

figures are ATW (hubs)

 

 

[kyepan 291]

even if the graph is rubbish still put it up! figures are not as important!

[feb 47]

Kyri, where have you been man?

 

I remember taking me out for a spin in the TT during the RR in Luton, your 205 was flying. Those were the days indeed!

 

The M1 is awesome and those figures are really impressive, I bet it must be fantastic to drive.

 

If you drive it without pushing what's the best fuel consumption around town and on a log run?

 

I think it may be time to get rid of my FSTi, not that I can afford a 1M but a 130 could be the "poor relative" alternative.

Edited August 21, 2012 by feb