Rolling road results graph

[sburrell93]

Had my 172 on the rollers last weekend just out of curiosity really to see how it was running. Came back pretty happy with these results:

To my knowledge the engine is standard besides a ktec stealth catback and a cone filter positioned behind the headlight. Comparing it to a few other 172 graphs I've seen though the torque seems wayyy higher than what these engines achieve as standard. What do you reckon?

Also, on the AFR graph, it goes pretty rich above 5.5k, would leaning it out and holding around 12.5 gain me any top end power? The dip above 6k especially, seems to tie in with the flat spot in power at the same RPM.

Cheers!

 

[warwickstingray]

There's a reason the RS tuner is so popular. Chip wasn't joking about the jump in fuelling causing the kick. Can't comment on the top end fuelling as I've no knowledge of what gives these cars best power. Sorry.

 

[Ph1 Tom]

You might get a bit more power at the very top end where the afr drops to 11.5

 

[sburrell93]

Might consider a map in that case. Could noticeably hear the flat spot in the revs when it was on the dyno. If I could get a bit more top end and then sort out the low down torque with a map I'd be fairly happy. Not convinced a standard RS tuner map would do everything I want but it's hard to look past considering the price compared to a live map.

 

[Diagro]

Live Map 100%.

I have lost most of my low end torque since having Catcams fitted, and thats running the 98Ron Map.
Having mine live mapped next month if funds allow.

 

[Dan@SJM]

Yeh you'll see a couple of horsepower on fuelling alone, plus a few from Ign advance top end

 

[sburrell93]

Yeh you'll see a couple of horsepower on fuelling alone, plus a few from Ign advance top end

Good to know, cheers. Does that look like a standard map to you? The power just seems like a good standard engine from what I've read on here but it's the torque that's throwing me.

Most graphs I've seen on here struggle to make 140ftlb lol.

 

[Dan@SJM]

Yeh looks happy enough.