Janspeed manifolds - Worth the money? - Page 6

talkingcars · 17-06-14, 10:01 AM

Quote:

Originally Posted by Fred68

The KV6 is very sensitive to intake temps. The colder the better.

Agreed, I'll post my findings with O/E and BMC CDA induction.

petet16 · 17-06-14, 11:14 AM

The Civic may have speed sensitive steering which may be giving the difference in feel that you're looking for.
Possibly using a different sized pulley on the pas pump might give the desired effect.

dave23572 · 19-06-14, 01:31 PM

One final question about the Janspeed manifolds and sports cat:-

If you fitted these to a 180, would it likely make the fuel economy better or worse?

petet16 · 19-06-14, 01:53 PM

Worse without a doubt

talkingcars · 19-06-14, 04:05 PM

The old argument that if you drive at the same speed you will be using less power and therefore less fuel should apply..............

petet16 · 19-06-14, 04:17 PM

Quote:

Originally Posted by talkingcars

The old argument that if you drive at the same speed you will be using less power and therefore less fuel should apply..............

It should James, but you just know it won't.

easytime · 19-06-14, 04:49 PM

Honestly i did not notice any difference to fuel consumption, when bog standard she got about 230 miles to a tank, and I am still getting that 11 years and lots of mods later.

MG ZS STE · 19-06-14, 06:02 PM

Quote:

Originally Posted by easytime

Honestly i did not notice any difference to fuel consumption, when bog standard she got about 230 miles to a tank, and I am still getting that 11 years and lots of mods later.

Should be getting about 100 more than that. Unless your driving it very hard everywhere you go that is.

dave23572 · 19-06-14, 06:13 PM

My theory was that if the car was faster, you'd be more tempted to drive it fast more often, hence worse MPG.

But if driven normally, standard vs a KV6 with JS manifolds and sports cat, would the economy be different.

ie, the engine wouldn't have to work as hard so would it be more efficient?
Or on the other hand maybe if it's making more power, it's using more fuel.

I guess without hard data, you'd just have to take a punt.

talkingcars · 19-06-14, 06:14 PM

Quote:

Originally Posted by MG ZS STE

Should be getting about 100 more than that. Unless your driving it very hard everywhere you go that is.

I'm lucky to get 220 with my regular commute.