DI with GEMS varies (especially if mods are done) - 12 to 15 mpg about town - 18 to 20 highway. D2 = with Motronic = 18 mpg in town (better torque via the intake manifold setup but less to work with in tuning [GEMS much better in that department according to Mark Adams]) BTW - according to...

scrap and part-it-out on e-bay.

You don't have to use LR vacuum pipe - any good pipe of similar dimensions will do.

Depends on the MAF: i.e., GEMS MAF responds very well to cleaning (with actual sensor cleaner spray can); BOSCH MAF will die a quick and ugly death if you try and clean it - or so the general consensus of BOSCH MAF cleaners would have it. Earlier than GEMS MAF - I can only claim ignorance on as...

, That makes perfect sense on the comp test, however, the preload test is best done with lifters drained (thus, a real pain to oil them up properly again without taking the rocker shafts off - after setting the preload). BTW - some of my valve-train squawking was owing to rockers not being...

Hi Fett; Cam is a John Eales about a stage 1) made to work with Mark Adam's Tornado chip for my GEMS 4.00 liter NAS. Lifters were either from John or MM 4X4 (I can't remember now [LoL]. Reason for shim/preload setup was that Mark Adams thought I should given some of the history of engine...

just completed a new tappet pre-load set-up (shimmed rocker-shaft posts 18 thou each); now, after starting-up I am getting noisy lifters (although quietening down a bit) and a lot of chirping. I am concerned that valve gear is not getting its oil but shims all had holes cut to permit oil flow...

great stuff and there is even more fine oil from the US - check out Redline products as well - I usually use a combination of Lucas and Redline Wolf PS - I can get all manner of both where I am at up here in British Columbia

I don't know about anyone else but I would have to say I am turning a little green with envy - wishing that freshly painted engine were mine! Those rockers and plenum chamber/throttle body housing look top notch!

You need to get a hold of Mark Adams of Tornado (his own company) - he will sort this out for you in no time.

Amen to that Fett - I was impressed with how clean the rocker assembly looked as far as varnish is concerned.

Rebuilders at RPI (UK) state these engines run best on 20/50 - regular or semi-synth but not full synth. Wolf

Beautiful work! I like the shape of those rocker covers better than mine (later 4.00 liter) as that rounded top line would make them a lot easier to polish (mine were a bastard as I didn't want to ruin the straight line).

I went for the polished aluminum look with the idea being (probably silly on my part) - reflect heat away from engine don't absorb it in with black (original colour on mine and a right pain to get rid of). It is a painstaking process though and if time is short - paint them blue.

Re: too rich - I know - I am working on that issue right now with Mr. GEMS expert Mark Adams

Good to know - which causes me to relax somewhat on my constantly 'too-rich' 4.00 liter GEMS (NAS) - other than sooting the exhaust up and carboning the combustion chamber area (not a good thing but better than toasting your valves). Part of my 'too rich' dilemma was caused by replacing...

Hey Fett; All that lean should have burnt his valves not his rings - or have I got that backwards? (i.e., constant too rich should knackered the rings?) wolf

Why oh why did they not just 'top-hat' those damned liners at the LR factory to begin with - it would have saved them untold amounts of grief and saved the reputation of an otherwise very decent small 8 cylinder. Talk about penny-wise and pound-foolish! Wolf

On #3 - it could be bushes and or it could be a broken anchor point (i.e., where bushes sit) on that rear trailing arm - I had exact same problem and had to weld the anchor point up. Wolf

Hi eightinavee; Wanted to know how you were doing and if you had any new V8 ideas happening? Wolf