hi all, quick question. there is a little tag on the aei that usually has a earth type lead on it, the 208 i have in y car doesnt have it but im seem to remember fitting one changes somthing to do with the timing? or am i spouting bollocks? if so what does this lead do?
Little black plastic box that bolt to the AEI where the AEI bolts to the body? with a cream coloured wire with a connector attached to the AEI itself?
yeah thats the one timothy
Thats the supressor my little tree-dwelling friend. Helps supress the interfearance caused by the HT leads.
Makes your neighbours TV's go fuzzy, innit.
cool beans, ill go get me one from a scrap yard then yayon that note are there any timing differences between the 208 and 209?
Yes, and the suppressor isn't needed if you're not worried about signal interference.
Adey sure I have a 209 in the shed but need to sort the shed out to find it
ok cool, think i need the supressor as i plan to use a camera in the car. What aei is the best to have?
Cool buddy, get me a list of all the bits u might have in the garage might be able to take alot of it off your handsOriginally Posted by Duncan Grier
Adey sure I have a 209 in the shed but need to sort the shed out to find it
209d
any reasons bud?
yeah, cos Mart says so!
Iginition timing etc innit. 208 was Ph1, 209 A, B, C and D being Phase 2. They tweaked the maps over time, thus the 'best' one is supposedly 209 D. That said, I've heard that version C hit the real mark and a 208 is simply better suited to a Phase 1. Who knows as the changes will affect a lot of parameters eh.
not much difference imo as I've been running a healthy 22psi with a 208 in situation for some time now and never had any issues.
209d runs the same ignition map as 'c', but reads the knock signal, and thus adjusts the timing accordingly, more efficiently (read linear) to knock level/boost pressure.
208 has a slightly less 'aggressive' map, and no knock control.
so it's safer for big boost to say the least, no?
Not really, as there's no knock control.
As I've mentioned many a time over the years, I'd say that a fair majority of the 'big boost brigade' are running (and relying) on that knock sensor when at w.o.t, and it's only due to the sensor detecting det', and thus the aei then retarding the ignition accordingly, that's saving them a trip to GSF for another R11102.
You only have to look at a given RR print-out to see how much oscillation/spiky the graphs are to realise something's going on with the ignition.
I'll bet there's been less headgasket/liner/ringland failures on cars fitted with a knock sensor compared to those that haven't got one in situ.
cool cheers, so even with a knock sensor pluged in the aei wont use it? on the 208 that is
Err, yeah. How many OE Ph1's have a knock sensor?
My ph2 gtt has a 208 aei with knock sensor connected up from factory
From what i've read on this thread is that even possible?My ph2 gtt has a 208 aei with knock sensor connected up from factory
My phase 2 has a 208 with a knock sensor attached before i threaded the knock sensor.
Dont know if it did anything though
Was like that when i bought it.
That may be, but there isn't any knock control on a 208 aeiMy ph2 gtt has a 208 aei with knock sensor connected up from factory
Sounds like it's previously been swapped over, as a ph2 from the factory should be running a 209 aei anyway.
Mine has only done 40 miles in 6 months. Probably one of the many reasons why it hasn't been healthy.That may be, but there isn't any knock control on a 208 aei
Sounds like it's previously been swapped over, as a ph2 from the factory should be running a 209 aei anyway
I should've reworded my previous post - It's perfectly fine to run a 208 aei, be it on a ph1, ph1.5, or ph2 gtt, but the 209 version has knock control and a slightly more advanced map, hence why the o.e power for ph2 gtt's is quoted @ 120hp compared to the ph1's 115hp.
But would it of been fine that i received the car running 1 bar of boost and a standard carb on top of no knock sensor control?I should've reworded my previous post - It's perfectly fine to run a 208 aei, be it on a ph1, ph1.5, or ph2 gtt, but the 209 version has knock control and a slightly more advanced map, hence why the o.e power for ph2 gtt's is quoted @ 120hp compared to the ph1's 115hp.
It starts getting borderline around 1bar boost on standard carb jetting, so can't really say to be honest.
Have you heard any detonation at full boost, and/or suffered a gasket/liner/piston failure?
Seriously i ve only driven it 3 times doing a combined mileage of 40 miles! Engine was taken out at christmas. A supposed bottom end rebuild was purchased as a ebay special..........I knowThat was ****ed when put in car. So now rebuilding everything on the old bottom end! My renault 5 nightmare.
Anyway back to your question mart, when i stripped down my original bottom end, the bottom of on of the liners had cracked of and the bits had been bouncing round under 2 piston crowns. would detonation cause this?
Think the boost was too much for the rings aswell as oil was creaping past the rings on the 2 nearest the flywheel.
Last edited by TrixNFlix; 23-04-2009 at 17:41.
certainly dont run a 204...... it melts things.. bitter experience
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