Newbie Gremlins

[Nabbott]

So the filter covers arrived today but are wrong . I'm having to reposition the stacks 5degrees outwards with new clamps to get clearance as with 23 degree heads the trumpets are too close together

So I'll be honest, this is the first time I've monkeyed around with fuel injection and it's quite a learning curve. Concensus drawn from various quarters leads me to believe that MAPing each throttle is best practice (if expensive).... As to the setup it self I've yet to open up the Motec ECU so have no idea what inputs it's using or requiring BUT the map sensor was wired into the loom just not connected to anything...... Still waiting to hear back from Mr Motec regards a proper tune/rolling road session which will be on the cards when I get this all completed.

[Nabbott]

Thanks Lee. Funnily enough my last order I picked up the UNI Syn tool

[Nabbott]

cooberpedy said:

Lovely engine bay!

Do you have some kind of trumpet socks over the stacks? Would love to see a picture with the airfilters installed, as i also intend to have a filter on each stack.

pardon me, but you really have been advised to install a map sensor on each throttle body what a BS.... (i presume the advisor sold the 8 sensors to you....)
Are you forced to run map as load by some kind of specific circumstances or why you didn't use alpha and a barometric pressure compensation?

I had to wait for my 'parts mule' to return from the US - and thus the completed installation along with 5 degree offset clamps and siamised triple screen filters.....

[Nabbott]

So I know for a fact that i'm suffering a cabin vacuum at speed (the first 'giveaway' being that the side bin tops were being sucked off their velcro at around 80 mph!). I'm pursuing 4 different routes/fixes having already unplumbed the heater in it's entirety!:

1) Mock up of the MDF screen to validate that it is hot air being sucked into the cabin (which it proved!)
2) Fitting side scoops (done)
3) Positively pressurize the cabin with air vents from the front clam (done - see separate thread)
4) Have a new cover made to accommodate my Kinsler fuel injection. Given the length of the venturis my rear clam had to be modified with a large hole...... Whilst the clam is being repaired i'm having the guy make a new 'scoop' to cover the air intakes.

I suspect that any of the first 3 (or a combination of all 3!) will largely eradicate the issue of cabin temperatures when the car is driving (not much can be done when stationary short of AC). I'm doing the 4th as the hole in the rear clam (whilst beautifully cut out) looks a bit 'kit car' (in a bad way).

Notwithstanding whilst the clam is away (due back soon) i've popped the gearbox out to fix the leaking main seal - so can't test out my theory/progress. Fingers crossed.

[Nabbott]

confusionhunter said:

looking good sir!!!
I to am ironing out a few set up issues with a low milage can am! Im in the midst of making a soft top like Krunchers but with my own clamping mechanism. I've also ordered an aeroscreen I'm noticing with interest what looks to be a ply screen around your roll cage...... I'll be very interested in the end result! I too have some heat management issues! Your post about heat reflective material makes a bit more sens now Ive read this thread!

BTW - when we drove the car with the temporary MDF screen it did solve engine heat being sucked into the cabin BUT at the expense of drover/passenger comfort! The amount of buffeting at motorway speed was uncomfortable - so i'm hoping i can get away without running one....

[Nabbott]

So with the rear clam repaired we move onto the new 'scoop'.

These are shots of the inner skin. I'll be picking the clam up in the next few days to check the clearances on the inner, before we complete it and move to the outer:

[Nabbott]

So just finished the last round of fettling and took it for a fill up. Am happy to report that the fresh air vents make a MASSIVE difference to cabin temperatures (it's now actually bearable). For anyone following that mod it's well worth it and CHEAP (more 'efficient than adding AC retrospectively too IMHO)

Too early to say if the scoops help with engine temp.... but they look LUSH

I HAVE just to sort out the sump pan oil leak (not so much as a leak as a torrent) and have ordered a new gasket set, despite the dry sump fabricator telling me these are not necessary. A PITA - especially as this was a problem mostly of my own making!

Am working with my glass fibre guy on filling in the hole in the rear clam, although the scoop will have to be MAX POWER size to accommodate the throttles. Hopefully more on that soon.


[pic]URL=http://imgbox.com/SELieVRB][/URL[pic]

Edited by Nabbott on Friday 26th September 14:39

[Nabbott]

So inner skin of the new cowl.... resembles a 1970's breadbin!

[Nabbott]

ROWDYRENAULT said:

Nabbot you certainly appear to be mechanically gifted so my question is why the dizzy? Throw that thing in a museum put a crank sensor on the main pulley and let that M48 earn its keep. Screw a bunch of points, caps, ect . Project is looking great. Lee

There's nothing in that dizzy apart from a rotor arm - I have an MSD crank sensor that feeds the Motec, so all the dizzy does is distribute the spark (as dictated by the ECU). :-)

[Nabbott]

confusionhunter said:

Yes looking good, will be interested to see the outcome!
Where did you get the side air scoops from?

Tried PM'ing you but it's throwing an error. They're the same as sold by Macgtech!

[Nabbott]

So got the inner scoop back now working on the profile of the outer. The idea being to have the finished article sprayed in Orange than use black stainless fittings to secure it to the clam: