Mark's 316 M52/2.8 + Cat cams & Jenvey ITB's

Post Reply
Mobster

Post by Mobster »

Just check the rear sub frame, however i doubt it very much. Fritz's were really the pioneers of this conversion and to think someone did that conversion in 82, seems too impressive for that period. Also, an e12 diff for a 2.3 would have been over kill, especially when E21 LSD's back in '82 would have been cheap.


User avatar
Jason_323i
E21 Pro
Posts: 756
Joined: Sun Jan 23, 2005 3:43 pm
Facebook page: https://www.facebook.com/#!/e21jason
Location: Dubai UAE

Post by Jason_323i »

E12 conversion was nowt to do with fritz it was a hartge option back in the day and was stock on the H35, very to check as the e12 is a side loader

Jason
BMW e21 race car supercharged s14 cage and fabrication by www.chizfab.com
Z3M Coupe
2.8 Z3 Coupe
Caterham Supersport
Clio 172 Cup factory race car(50%)
Ferrari 348 Challenge track car
User avatar
e21-Mark
E21 Master
Posts: 5715
Joined: Fri Mar 21, 2008 2:19 pm
My E21(s): 316 m52/2.8 Cat Cams & Jenvey ITB
Facebook page: https://www.facebook.com/JackyardBackoff
Location: Cornwall - UK

Post by e21-Mark »

I'll take a proper look next time the cars on a lift.

I've no idea if the guys correct or not. Just saying what was in his mail to me.
dannyboy
E21 Fanatic
Posts: 431
Joined: Sun Aug 09, 2009 5:07 am
Location: london heathrow

Post by dannyboy »

Jason_323i wrote:E12 conversion was nowt to do with fritz it was a hartge option back in the day and was stock on the H35, very to check as the e12 is a side loader

Jason
thats what fritz told me when he done mine for the first time... hartage h35s or even the twr 335i 8)

that hartage had done this type of conversion before... to handle the power/ torque of the m30.. and that an m30 conversion would require similar modification.. rear subframe and mounting.. he had tried it on a 315 that was sitting in vast warehouse before they moved.. but this was never a runner....
a bmw tech at heathrow had good look over mine and was happy to see the e12/e24 lsd on the rear of mine.. and his words were "thats like the twr335i's i used to work on".....
Fritz is the only people i know of doing the conversion now mind...
Last edited by dannyboy on Mon Jun 28, 2010 2:57 pm, edited 1 time in total.
e21 335i gone but not to far.
e21 316.. still
ford puma..(wifes honestly)
Mobster

Post by Mobster »

Mobster wrote:Just check the rear sub frame, however i doubt it very much. Fritz's were really the pioneers of this conversion and to think someone did that conversion in 82, seems too impressive for that period. Also, an e12 diff for a 2.3 would have been over kill, especially when E21 LSD's back in '82 would have been cheap.
Maybe Richard was just trying to impress me...
User avatar
tommi_e21
E21 Mad
Posts: 1536
Joined: Fri May 16, 2008 2:31 am
Location: letchworth sg61hy

Post by tommi_e21 »

it is such an easy conversion to do all you need is a welder and a load of plate steel.
User avatar
--ALPINA--
E21 Pro
Posts: 1014
Joined: Wed May 17, 2006 1:29 am
Contact:

Post by --ALPINA-- »

austin25uk wrote:it is such an easy conversion to do all you need is a welder and a load of plate steel.
Do you reckon its easier then fitting motronic 1.3 to an engine? :lol:


J
(- (- (- ---- Project 911 on the hunt ----) -) -)
User avatar
tommi_e21
E21 Mad
Posts: 1536
Joined: Fri May 16, 2008 2:31 am
Location: letchworth sg61hy

Post by tommi_e21 »

depends if your mechanically or electrically minded, i built a few of the fritz conversions so i know its easy to do.
Mobster

Post by Mobster »

austin25uk wrote:depends if your mechanically or electrically minded, i built a few of the fritz conversions so i know its easy to do.
Do you want to build mine for me for some wedge ?

Do you require E28 Diff mounting brackets ?
User avatar
tommi_e21
E21 Mad
Posts: 1536
Joined: Fri May 16, 2008 2:31 am
Location: letchworth sg61hy

Post by tommi_e21 »

i would do it for free if i had access to a welder. the subframe is relativly easy jut requires lots of welding, its the diff mounts which are tricky, to get the decent diff mount in place you need to cut a small section out of the spare wheel well and then put in a recess for the mount, would need access to a ramp and a welder really and about a day,
User avatar
--ALPINA--
E21 Pro
Posts: 1014
Joined: Wed May 17, 2006 1:29 am
Contact:

Post by --ALPINA-- »

diff mount as in carrier? i have E28 diff mounting holding mine up!
(- (- (- ---- Project 911 on the hunt ----) -) -)
dannyboy
E21 Fanatic
Posts: 431
Joined: Sun Aug 09, 2009 5:07 am
Location: london heathrow

Post by dannyboy »

austin25uk wrote:i would do it for free if i had access to a welder. the subframe is relativly easy jut requires lots of welding, its the diff mounts which are tricky, to get the decent diff mount in place you need to cut a small section out of the spare wheel well and then put in a recess for the mount, would need access to a ramp and a welder really and about a day,
As per mine... recess in the spare wheel well.. it was proberley you tommi who done it :shock: :lol: :lol: :lol:
e21 335i gone but not to far.
e21 316.. still
ford puma..(wifes honestly)
User avatar
e21-Mark
E21 Master
Posts: 5715
Joined: Fri Mar 21, 2008 2:19 pm
My E21(s): 316 m52/2.8 Cat Cams & Jenvey ITB
Facebook page: https://www.facebook.com/JackyardBackoff
Location: Cornwall - UK

Post by e21-Mark »

Turns out my chrome mirrors were early e12 one's so I can finally get the correct mounting rubbers and fit them - when I finally get my car back.

Image

Image
User avatar
tommi_e21
E21 Mad
Posts: 1536
Joined: Fri May 16, 2008 2:31 am
Location: letchworth sg61hy

Post by tommi_e21 »

i remember building about 4 rear beams but only fitting 2 so i guess could be yours. i remember having a shocking tan on my arms after because i was welding for so long.

2 of the beams that i built the old man set up wrong so had to cut them all apart and start again which took fricking ages but got it done in the end.

some of the E12 diffs where a little unique so although a jig worked most of the time sometimes the really old diffs didnt quite line up in the holes n required fetteling, most of the time it was the ones with little pumps or coolers on the side i think

oh and may be investing in a welder very soon as it seems rather critical for project panzer so i may be able to build rear axles again :)
User avatar
e21-Mark
E21 Master
Posts: 5715
Joined: Fri Mar 21, 2008 2:19 pm
My E21(s): 316 m52/2.8 Cat Cams & Jenvey ITB
Facebook page: https://www.facebook.com/JackyardBackoff
Location: Cornwall - UK

Post by e21-Mark »

RetroBeemer wrote:Turns out my chrome mirrors were early e12 one's so I can finally get the correct mounting rubbers and fit them - when I finally get my car back.

Image

Image
Hopefully it won't be too much longer till my car comes back from RPM.

The hold up has been parts. A couple of stainless pistons have had to be fabricated for the Volvo calipers and a rebuild kit is on route from Germany for the e12 528 brake master cylinder. I'm looking forward to seeing how the calipers have been mounted. I know Dave was looking to engineer an alternative solution to just slotting the mounting holes.

I was hoping to take my car to Bimmerflex but its not looking likely so I'm just waiting for the track day at Bedford instead.

Seems even longer than the 6 weeks its been away.
Post Reply