New-Engine Run In

[Prof]

Pretty much echo what\'s been said - I\'ve had a few rebuilds now - but just take it easy - Rotechniks will take the car back after you\'ve covered the 1000 mile run in - and do oil change and checkup - just to make sure it\'s all bedded in.  After that, start building up the revs / boost to work the engine in nice :driving.  After a couple of 1000 it should rev freely to redline.

[logicalChimp]

Woohoo - providing the wheels don\'t fall off when they do the road test tomorrow morning, I\'ll be driving it tomorrow evening!

Something tells me that i\'m not going to get too much work done tomorrow :Party

[logicalChimp]

I got it! i got it! i got it!

Ahem.  sorry about that - i kinda lost my grip

Anyway - drove it home last night, ran great.  Got a couple of pictures too, on my photo gallery - http://photo.mentalspace.co.uk/viewGallery

[Sy.]

NIce like the Nail varnish red ... and the wheels suit it well

[logicalChimp]

Bored, and killing time in the office, so i thought i would update this old thread...

When i collected the car, i was told that the Twin Air Intake had to be binned afterall, as a) the filters had more holes than a string vest, and b) the cones were held on using something looking suspiciously like plumbers tape!

All that said, Rotechniks have done a sterling job on the motor, and it runs like a dream.  Took it for the mapping session following run-in last week, and then for a trip up to wales and back to test.  all i can say is: Woooohooooooooo.  ahem.

Very suprised at the way the car changed once the secondary turbo kicked in (remember that the primary is almost non-functional) - it really takes off.  Even more suprising is the way the note of the exhaust changes - it\'s normally a really deep bass rumble, but at around 4.5-5k rpm it suddenly shifts up to a mid-range \'Brap\' noise - very very nice

Still need to do another 2k miles or so to finish fully running in (stil under orders to avoid the redline, and not go WoT too often).  Also need to sort out the suspension (springs for sure, and possibly bushes) and get the wheels aligned.

[fil_auto]

good stuff dude - am looking forward to this myself - being able to enjoy the send tub that is! A couple more hundred miles for me before a service, oil change etc.....than hopefully one can start njoying the car properly! #;o)

[Kevin]

turn your boost back on

? :confused:

[andrewrx7]

Very suprised at the way the car changed once the secondary turbo kicked in (remember that the primary is almost non-functional) - it really takes off.  

Nice to read your pleased with it. Rotechnics have a good rep but you don\'t hear much of them on MRC for some reason.

On point though, from your description, you\'re still running standard twins and sequential? For the 2nd turbo to come in, you still need at least 7psi from the primary to activate the switch over gear to allow the 2nd turbo to work. I guess if you experience the 2nd turbo push, then your primary must be working to some degree to generate enough pressure. Why do you think it\'s almost non-functional? It may be better than you think, you never know!?

[logicalChimp]

Yeah - Rotechniks did say that it was generating some boost - but (and i\'m probably going to use the wrong terminology here :p) the blades on the exhaust side have been force-fed lots of rotor-tips, or similar - they are severly chewn up/broken off.

When driving (even nearly WoT) i never really feel the primary turbo kick in (there is a slight difference from pre-run in, but not much), but i certainly feel when the second takes over!

However, i don\'t mind that the primary is less than optimal - i don\'t really need the turbo for motorway driving (of which i do a fair bit), so the reduced primary should (as i understand things) help with my fuel economy And if i need to overtake, i can always drop a gear :driving

Actually AndrewRX7, now that i think about it, Rotechniks did say that before the rebuild, the engine wasn\'t swapping to the secondary at all.  Now, i know a couple of the hoses were in a pretty dubious condition (inc. leaking slightly), so the primary is probably only just managing to generate the required boost for the secondary to kick in.

I\'ll have to get myself a boost gauge or similar (when i can afford it - after fixing the rest of the car) so i can see what it is actually doing...

[logicalChimp]

? :confused:

To reduce the chance of accidentally boosting while running in, Rotechniks turn the boost right down.  As i\'ve said, my primary doesn\'t really generate any boost, but i can still feel a slight difference in how the car accelerates at around 3.5k rpm, now that they have put the boost back up and mapped the car...

[andrewrx7]

So imagine what it\'ll be like when you get a good set of twins back in there! Full primary plus the combined effects of both from 5k onwards. Remember that the primary and secodary work together after 5k, (it is not primary then secondary only - it is combined boost at the higher revs), if you are loosing boost by a poor primary then you will also have lower boost when both are working. Go on, a couple of hundred quid for a good used set....you know you want to.....!:Laugh

Yeah - Rotechniks did say that it was generating some boost - but (and i\'m probably going to use the wrong terminology here :p) the blades on the exhaust side have been force-fed lots of rotor-tips, or similar - they are severly chewn up/broken off.

When driving (even nearly WoT) i never really feel the primary turbo kick in (there is a slight difference from pre-run in, but not much), but i certainly feel when the second takes over!

However, i don\'t mind that the primary is less than optimal - i don\'t really need the turbo for motorway driving (of which i do a fair bit), so the reduced primary should (as i understand things) help with my fuel economy And if i need to overtake, i can always drop a gear :driving

Actually AndrewRX7, now that i think about it, Rotechniks did say that before the rebuild, the engine wasn\'t swapping to the secondary at all.  Now, i know a couple of the hoses were in a pretty dubious condition (inc. leaking slightly), so the primary is probably only just managing to generate the required boost for the secondary to kick in.

I\'ll have to get myself a boost gauge or similar (when i can afford it - after fixing the rest of the car) so i can see what it is actually doing...

[logicalChimp]

You\'re right - i DO want too!

howeer, before i can justify that, i need to:
* replace my front springs
* replace all suspension bushes/pillowballs/etc
* align the wheels
* fix the bodywork (rust etc)
* repaint (serious chips / scrapes / cracks)
* fit new alarm

Then i can start looking at niceties.  As well as replaced tubbies, i want:
* Knight Sports twin popup headlights
* Lambo-style doors (probably only once i paid for everything else!)
* Steering wheel spacer nut + quick-release catch
* more comfortable seats
* refurb the alloys
* remove the rear seats, and fit a single driver-side rear bin

Once that little lot is done (probably take me a good couple of years to save for it), i\'ll probably have a new list of things to do...

[Kevin]

To reduce the chance of accidentally boosting while running in, Rotechniks turn the boost right down.  As i\'ve said, my primary doesn\'t really generate any boost, but i can still feel a slight difference in how the car accelerates at around 3.5k rpm, now that they have put the boost back up and mapped the car...

Never heard of that one before, certainly never had that with the numerous rebuilds i\'ve done or had done by WGT etc.  Generally boost is controlled by your right foot. :Thumbsup!

[Kevin]

* Lambo-style doors (probably only once i paid for everything else!)

NNNNNNNNNNNOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :Hammer






:chat

[rotary_rogersFC]

im just running mine in at the moment aswell, hasnt seen over 4k rpm but havent got the boost turned down i just dont use the throttle more than about 30%. im on around 750 miles now so im almost there. cant wait for full throttle and 4rpm +!!!!!!!