engine options,

[v8ian]

Being new to the Lexii V8 and have not as yet purchaced one here is a speculative question,

Assuming I have a non VVt 1UZ from a Soarer, removing all the electronics, and fitting an aftermarket mapable ECU, with mappable ign timing, using the bottom half of the inlet manifold fit my 45mm Jenvey downdraft throttle bodies, free flowing exhaust manifolds, what sort of HP/Torque would I be looking at, and what sort of rev limit do these engines start to fall apart in stock form????

and what would be a good spec for building a reasonable N/A engine to produce 400hp+?? With I suppose a bit of extra saftey if I intend to add a 125 shot from my NOS sniper kit??:veryhappy:

 

[XR8tt]

Imo ... Cams will be your draw back if there is a power wall...
Possibly some porting to lower manifold ...

 

[Lextreme II]

Perhaps you should start with VVTi engine for a head start on the HP. I think high compression, and other bolt ons should hit 400 bhp.

 

[v8ian]

Perhaps you should start with VVTi engine for a head start on the HP. I think high compression, and other bolt ons should hit 400 bhp.

If this the case, do I disable the VVTi, or leave working, if its electronic I think my ECU will run it via a RPM control, a friend had a RWD Focus engine with VVTi controled by a button on the steering wheel, scared a few people with that button as the engine really starts to sing, or is it hydraulic?? If its anything like the BMW Vanos, a well respected Race Engine builder decided to design a set of cams to do away with it on a M3 they threw silly amounts of money at it, and eventually admited defeat, refitted the vanos and made more power than before with standard type cams.
Stupid questions from a novice, are verniers available, I have seen some sensible gains from re-phasing cams, Cams are often set for better emmisions rather than power.
Ian:scratchchin:

 

[Jake Breyck]

The cams on the UZ motors are tuned for low end and mid range but not high rpm at all, Here is my stockish non vvti 1uz dyno you can see the steep drop off well before the rev limiter.