Z22SE inlet manifold

Blue_2_2

Hi all

Dbilas seem to be the only manufacturer that make performance intake manifolds for the Z22SE engine (correct me if im wrong) that boast a 25 BHP increase for £1200 with no other mods!

Thats fine if you have that much money........

But what if a manufacturing company built their own version, did the research and could prove that their manifold could increase power.

Would you be interested?

Your thoughts and comments pls

Andy_Coupe

yeah could be mate!

vocky

I doubt that the dblias inlet gives 25 bhp on the z22se.

'Venom' http://www.venom-performance.com/nf/html/prodtoc.cfm# also make an alloy inlet, it's a very similar design to standard.

I actually had an alloy inlet manifold made for mine, but the ecu wasn't happy with it.

I found that by carefully opening up the hole below the throttle body and opening up the outlet ports, that the standard inlet is very good

Gazza

yea i would be interested

tiger

i think most people would be but heres hoping :roll:

Blue_2_2

Vocky:

"I actually had an alloy inlet manifold made for mine, but the ecu wasn't happy with it"

what dimensions did you use for you manifold? and how did you work them out?

vocky

I wanted something @45mm internal diameter (to match the cross section area of my ported head) and would also allow me to fit my 68mm throttle body

car went great until the ecu went into limp mode, but I used a cheap cone filter and that may have been the problem.

I may try fitting it again in the spring with a better air filter

The engine runs fine with the modified standard inlet and the 68mm throttle body, so I suspect it was either the air filter or the map sensor positioned in the wrong place

Blue_2_2

Vocky

Any chance of some pics? (im sure everyone else is thinking it?)
and what else have you done to your Astra? Alot by the sounds of it!