More Bhp

[mrblonde 0]

hey,what can i do to get more bhp out of my standard 1.9??...i mean like to get 10bhp and 20 bhp and so on.without going to extremes.i have already got a 4 branch exhaust manifold,not like that will do much.

[hengti 2]

difficult to improve on

exhausts don't work; neither do filters or boost valves

 

magnex manifold gives you a noticeable bit more torque

 

otherwise, it's on to cams and heads = expensive

[mrblonde 0]

yeah i cant see air filters,exhausts doing much really.just giving a little different sound prob.anyone got prof in the pudding that air filters and full exhasut systems do???.

[RobMGti 0]

Attempt to pick up some cheap carbs off ebay and then stick a catcam in. To get 20bhp out of an 8v without carbs or TB's you have to do some serious work.

 

As an example my track car was rr's recently at 122bhp at the wheels. This (using Puma racings calculations) is approx 145-147bhp at the fly. Thats an increase of around about 20bhp from a standard XU9JA engine. Im not running Carbs or throttle bodies. Spec is:

 

Fully rebuilt engine (inc new pistons)

HiFlows stage 3 head with Piper 270cam (virtually no different to standard)

Ram Air Kit

Englarged Throttle Body

Ported Manifold

Full Powerflow exhaust inc downpipe (copy of group N system, same bore)

 

I think ive been fairly lucky with those results as really i think most people would only expect say about 140bhp or so without moving to a more lairy cam, i did run a 285 for a time but found the idle was unsuable on the road.

 

Without the use of Carbs or TB's your fighting a losing battle.

[PumaRacing 1]

hey,what can i do to get more bhp out of my standard 1.9??...i mean like to get 10bhp and 20 bhp and so on.without going to extremes.i have already got a 4 branch exhaust manifold,not like that will do much.

 

You could read my website for a start.

 

www.pumaracing.co.uk