EGT numbers someone ??? - The Unofficial BMW M5 Messageboard (m5board.com)

KAMIKADZE · 21st April 2005, 09:23

Hi
I have installed egt sensor - but I thing my egt numbers are too high I saw 790 degrees celzium ( 1460 f ) on wot yesterday - if normaly cruising at stable speed I see 700-740 degrees ... can some one tell me is that normal for M5
BTW yesterday I but denso iridium IXU22 on the S38B38 can it be the problem ?

TBrown · 26th April 2005, 09:12

I've never seen egts on an e34 m5 before but I have heard bad stories about using aftermarket spark plugs.

yewcorner · 26th April 2005, 14:46

Here is some info on the plugs to use/not use: http://bmwe34m5.com/faqs/?theme=1&le...nt_id_select=3

Quote:

Originally Posted by KAMIKADZE

Hi
I have installed egt sensor - but I thing my egt numbers are too high I saw 790 degrees celzium ( 1460 f ) on wot yesterday - if normaly cruising at stable speed I see 700-740 degrees ... can some one tell me is that normal for M5
BTW yesterday I but denso iridium IXU22 on the S38B38 can it be the problem ?

MBrasil · 28th April 2005, 17:55

1460 is is perfectly normal for an aspirated car, where did you puy the probe ???
In turbo cars we usualy use it 10 cm after the turbo, and see a little bit colder than that, like 1350. If it is stick before the turbo, just after the ex. manifold 1450 is pretty ok

KAMIKADZE · 28th April 2005, 18:18

There is no difference in EGT with stock and iridium plugs . I put the probe right after the head about 10sm from exhaust valve

MBrasil · 28th April 2005, 18:23

probably not ... they just need to be the same temp grade.

I use grade 10 in my S2 RS, only because I run on Ethanol