Any one DIY'd a Rotrex charger? What on? pics? Heres mine

[Appletree318is]

Hi, my first post here although ive been reading here for quite along time.

Anyway thought id post a few pics of my project up for anyone intrested and wondered if any one else had a simular project? if you have please post some pics!

Heres my first attempt i did when i was 19, its been in two mags so you may have seen it before.

It was 136bhp standard and with my charger it made 205bhp at the fly wheel this time using the rotrex charger i'am planning to get 300+bhp. hope you all like it.













Now what the title is realy about, 2 years older and bored of the power i bought a rotrex charger and started fabbing up some bracklets and pipe work fo it, heres some of the pics from the project so far.

Wooden mock up of the braket


After i made the metal one





My intercooler


Mounted with my DIY stainless boost pipes


My swedish style inlet, not sure weather to polish it or do it with crackle black paint.



So lets see yours if your working on a project, give me some insperation! and some motivation to get outside in the cold weather and finish it off

Cheers, Matt

[Appletree318is]

Sorry forgot to say. Ya its an BMW E30 318is 1.8 16v

Heres a Current pic of the car for anyone who's intrested

Edited by Appletree318is on Sunday 4th January 13:53

[Appletree318is]

sniff diesel said:

Ment-Al said:

All well and good, but i think id have started with something a little more powerful than a 1.8?

All the same, good work.

Might there not be enough room with an M20 under the bonnet?

Seems a hell of a lot of work and expense for similar power output to an M50B25 or M52B28 conversion but fair play to you for not taking the easy option.

The main trouble with that is the insurance, like i said i was 18/19 when i did the first conversion and it was cheeper to do that than swop the engine or insure an E36 M3.

As for the swopping of the engine the B25 is only 189bhp and the B28 197bhp there is quite a lot of expence in doing that to, so far the first conversion only cost me £1700 including the stand allown ECU and getting it mapped.

The second has obviously cost more but now the car has got alot of work done on the running gear, ECU and the body work so half of the work is already done.

[Appletree318is]

minimatt1967 said:

Is this car the one that was in PPC or Retro? Nice car!

Now supercharging a M50B25/28 that would be interesting

Yes it was in PPC and total BMW

[Appletree318is]

Nice kit is that the same as the lynx power one that was in PPC on the GT6 that made 400BHP?

What PSI are you running, bet its great fun, how did it go at then ring? i went on a road tripo there last year realy enjoyed it!

[Appletree318is]

Cheers, my mates got a mk2 golf he fitted an Audi 80 2ltr engine in it last year after we killed the 80 at the ring and then it filled with water in the flood, i keep telling him to fit a charger. pritty quick as it is

Heres the propper thread, its copyied from the e30zone so some of the replyes might not make sence but you have to log in to see that so this ones easyer for anyone who wants to look. i update them both at the same time so theres lods of up to date pics.


http://www.m42club.com/forums/showthread.php?t=751...

[Appletree318is]

It was an eaton m45 supercharger off a mini cooper s. As far as i know i was the first to do this in the Uk an at the time anywere else although there are two more being build on the e30zone now.

A firm called downingatlanta did a simular kit but it made less power than mine only 187bhp iirc.

I made a laminova style chargecooler set up that sat in the inlet manifold, dropped the charge temp by 30c!! Eaton chargers get very hot!

[Appletree318is]

KemP said:

Thanks for the answer. I have read about the DA kits but they dont make them anymore. I was hoping it was an off the shelve kit! I dont have the talent or equipment to make one from scratch. Did you do a journal of the build up for the first kit?

Heres the thread for the first build, you will have to log in to see it but its all free and only takes 2mins.

19 pages

http://www.e30zone.net/modules.php?name=Forums&amp...

afew taster pics

[Appletree318is]

I was turning one of the laminova style charge cooler finned tubes, water runs through them an the charged air passes through the fins, that tubes only a 1/4 done, there ar two of them that sit in the inlet manifold to make the charge cooler.