There are very few super coupes out there, and I was planning to do the Dinan TT (purchased from one of our forum Vet. Members here) on my S70 car but the more I read and looked at the compression numbers it jus didn't make sense. From what I have heard Dinan actually did work on the S70 to bring down the compression a bit. One of our forum members here that has been doing forced induction TT and SC for 20 Years+ explained and schooled me on why not go the S70 route. Even our own MTech on the forum advised against it.....it would be doable but a lot of trial and error, plus I do not want to blow an S70 block with 40,000 miles on it. The S70 looked attractive due to the fact it is already tuned with honed extruded intakes, super sprint exhaust goodies, etc etc etc etc. But it is proven by Omega Man that significant increases are possible on S70 by going through the car and squeezing the last pony out of it.
So Dinan TT (CA Legal) will go on my 1993 M70 6 speed manual.
Last edited by alex840; 12-19-2017 at 03:18 AM.
'91 Dinan 860 Stage III (new 6L engine)
'91 Dinan 850 TT stage III (brand new engine) 21st Century Tech meets 18th Century Dinan...
'91 850i 6sp (mint) (sold)
'90 Dinan 750iL TT stage III (Guido - The Beast)
'94 850 CSi The Detroit Auto Show car (restored to factory perfect) (sold)
'96 850Ci, The George Carlin car
''73 3.0 csi, '08 535i, '03 X5 4.6is
...and a few other non BMW cars
Bookmarks