Leeroy_25

So I have my engine out and was thinking of cutting the LIM while it is all apart to get a bit extra hood clearance.. Are there any reasons I should consider leaving it as stock? I can see you must have to mod or spacer the fuel rail mounts and it probably starts getting a bit tight under there where you currently have room to get in an unplug injectors or vac lines without taking the UIM off? The engine just clears a modified hood as it is.. need to make a slight mod to the inlet elbow to angle it down slightly where it sits a bit too close for my liking but it clears other than that.

What are the thoughts? not even sure where I can get it done in the UK yet but I am sure one of the rotary shops will be able to do that.

Cheers
Lee

hsmidy

Many ways to skin a cat, you can buy short manifolds for them.
what/where is the current issue with clearance?
Is a modified bonnet an issue?

Shortening your intake manifold will reduce engine torque...how much would depend on how short you make it.

Leeroy_25

Main clearance issue is top of the inlet elbow where they curl up slightly.. Plan to just cut the flanges and ange back down.
No real issue running a modified bonnet. It just limits the choice if I want a change down the line!

t-von

iTrader: (8)

Shortening the runners moves the torque peak higher in the rpm range. This will slightly effect the bottom end. Higher torque peak equals more top end provided you have proper exhaust scavenging and flow.

socks

iTrader: (9)

I would suggest saving for the xcessive manifold. Its a very nice piece.

Leeroy_25

Hmmm. I am in two minds.. I guess I could leave it as is for now and maybe mod or swap it over next winter if I feel I need to..

stickmantijuana

iTrader: (1)

I have xcessive unit installed. it's a very nice piece. you need to do some grinding on the primary fuel rails to clear the flange, but other than that, it's just like OEM. personally, I think you would be happy with xcessive regular length LIM. It gives you more room under the manifold to hide stuff--like the coils, flex sensors, thermostat, etc. It was bitch to hide all that under UIM with the shortened LIM. I had to go with shortened LIM because the engine sits pretty far back and I had to cut the firewall.

Leeroy_25

Thanks for input.. Yes I saw a picture of your setup the other day.. The engine is nearly on the front seat!! LoL! Think I am going to stick with the regular LIM for now and modify inlet elbow instead. I can always swap out later.