Sneak Preview of latest project ...E46 M3 Turbo

[CA Automotive UK]

over last few weeks we have been quietly working away on our next demo car, a turbocharged E46 M3.

We hope to have it complete in january 2008, and are hoping for 650-700 bhp.

Mapping will be by done in house ( using our Mr matrix) through the OEM ECU, and NOT any kind of piggy back or standalone device. As far as we know no one has ever previously managed to map an e46 m3 turbo this way. Fingers crossed...

Here are some images to give you a taste of what we are doing

Spec Includes :

Orion low comp pistons
Pauter rods
APR bolts throughout
Hybrid "secret" compressor
Intercooled
Twin fuel pump and enlarged fuel line delivery system
Head work
Full custom exhaust
Adjustable boost control

The car is, as per usual CA style, loaded with carbon fibre, big brakes, gauges, coilover suspension etc .


Will post up more images and videos when she is finished.

excuse the dirty finger marks all over the place :) Final production kits will also have neater welding and joints.

[zarnd]

looks awesome, and should be great when finished. looking forward to seeing the finished article!

cheers

[XKaLiBaR]

not acshnitzer rims again!!

nice project guys. hope it works out. the turbo conversation eliminates the air con still, doesnt it?

[huzi7]

Awesome!

Look forward to seeing the finish pics!

[adood84]

Wow keep us updated

[andbecks]

Hybrid "secret" compressor.
that was going to be my first question boo...

[CA Automotive UK]

HI GUYS

yes this conversion eliminates the air con

we have to keep teh compressor and piston design detaisl to ourselves on this one

schnitzer rims will not be on there long :)

[BMW JAY84]

Looks good looking forward to see the finished article. Will it be at the piston heads show by any chance ?

[Auryn]

Looks good looking forward to see the finished article. Will it be at the piston heads show by any chance ?


possibly maybe...it depends on a few other things but id certainly like it to be next to the banana :)

[MARTY]

Looks cool.... looking forward to the updates!

[SYE]

very nice look forward to seeing the finished product

[gie0320]

Wow! thats all I can say

[pradley]

what are the major differences between supercharging and adding a turbo?

[Blaze1235]

Looks nice V NICE,

where is the Turbo sitting just couldn't work that out.

some Jap Munching metal.:D

[Mehmet]

So your still keeping Bannana :) AND you got this too.

I need to sell more Fish and Chips lol (GIV)

Well done guys :)

[Mah_c180]

650-700 bhp.

WOW :eek: that so much BHP from that E46 and what about the torque how much would that be??

But guys its a nice project, and not been done before so fingers crossed!!

[mnathan]

Well Done Roy for pushing the mark again........

Hope the car is finished soon. What do you think of the HPF turbo kits which are putting out 750bhp?

BTW i recognise that workshop ........the license plate on the wall gives it away;)

[andbecks]

I have been following that HPF kit also on E46 fanatics.
Very well put together and they seem a very very good company.

I know they spent ages on R&D but still think 600rwhp or 650RWHP on Meth is high for standard internals @ 11-13psi
What do you think Roy as I am just a keen follower and not a techy really?

[Auryn]

the hpf kits do read allot higher bhp because the americans use different correction factors :)

[andbecks]

understand that, do you think the psi is too high for standard internals

[Auryn]

understand that, do you think the psi is too high for standard internals

11-13 is about right, we're starting this kit off as 12psi & slowly upping the boost from there to around the 18ish psi :)

[ADAMOD]

Well hats off to you guys it's about time someone did something this side of the water. Have you any idea yet what price the kit will be?

[andbecks]

11-13 is about right, we're starting this kit off as 12psi & slowly upping the boost from there to around the 18ish psi :)

Yeh but arent you changing to low comp pistons rods etc. HPF's is on standard internals. that was my point???

[CA Automotive UK]

it is always difficult to comment on other tuners and their power figures etc, always a risk of being accused of something or another...but here goes, based solely on our direct, honest experiences...:)

HPF certainly seem to know their stuff,and the kits seem well developed.
They use an AEM piggy back management system, whereas we are maping into the car's oem ECU ( MR X seems to be one of the few that can do this)", as we think this is more "correct" and will always give better and smoother results than a piggy back. Also you can control far more factors and to a generally greater range by mapping the oem ecu than with any piggy back system.

Power figures..a minefield:) If they are using dyno jet or mustang dynos then these will almost always show figures some 10 - 15 % higher than a european dyno( say dyno dynamics), this in no way implies any fiddling by HPF, it is just a fact that these dynos are built this way, the manufacturers have confirmed this.

We found this out to our cost with the american kits we used to import when the listed power figures never matched the readings on UK dynos.
We had to modify some of the hardware and make our own software before we achieved "proper " power. For this reason and the fact the USA software never works properly on UK spec cars ( due in part to different emission control standards), we no longer sell USA based FI kits except for the M3 kit as per our demo car, and the universally compatible downing atlanta M44 kit.

We believe it would be very difficult to reliably achieve more than say 550bhp at the wheels on an M3 ON a european spec dyno with 11 - 13 psi boost, on stock compression of 11.3 : 1 ; this equates to about 630 bhp at the flywheel. Also, we would not run more than 10 - 11 psi max on stock compression.

The stock internals should be fine around these figures, it is the stock compression that would be a problem in terms of heat build up and danger of detonation. Our Savspeed based turbo kit uses all new reinforced internals,at a compression of about 8.5 to 1 allowing it to run up to around 25 psi boost.

we are still working on mapping this e46 turbo car we are working on, so far we are up to 620 bhp at about 1 bar ( 14.7 psi) boost, but are not finished ...:)

[andbecks]

it is always difficult to comment on other tuners and their power figures etc, always a risk of being accused of something or another...but here goes, based solely on our direct, honest experiences...:)

HPF certainly seem to know their stuff,and the kits seem well developed.
They use an AEM piggy back management system, whereas we are maping into the car's oem ECU ( MR X seems to be one of the few that can do this)", as we think this is more "correct" and will always give better and smoother results than a piggy back. Also you can control far more factors and to a generally greater range by mapping the oem ecu than with any piggy back system.

Power figures..a minefield:) If they are using dyno jet or mustang dynos then these will almost always show figures some 10 - 15 % higher than a european dyno( say dyno dynamics), this in no way implies any fiddling by HPF, it is just a fact that these dynos are built this way, the manufacturers have confirmed this.

We found this out to our cost with the american kits we used to import when the listed power figures never matched the readings on UK dynos.
We had to modify some of the hardware and make our own software before we achieved "proper " power. For this reason and the fact the USA software never works properly on UK spec cars ( due in part to different emission control standards), we no longer sell USA based FI kits except for the M3 kit as per our demo car, and the universally compatible downing atlanta M44 kit.

We believe it would be very difficult to reliably achieve more than say 550bhp at the wheels on an M3 ON a european spec dyno with 11 - 13 psi boost, on stock compression of 11.3 : 1 ; this equates to about 630 bhp at the flywheel. Also, we would not run more than 10 - 11 psi max on stock compression.

The stock internals should be fine around these figures, it is the stock compression that would be a problem in terms of heat build up and danger of detonation. Our Savspeed based turbo kit uses all new reinforced internals,at a compression of about 8.5 to 1 allowing it to run up to around 25 psi boost.

we are still working on mapping this e46 turbo car we are working on, so far we are up to 620 bhp at about 1 bar ( 14.7 psi) boost, but are not finished ...:)

Great, thanks for the response and info
I thought as much in regards to UK dynos etc as with their comparable S/C
kits in US making a lot more than the UK ones especially when comparing to your stage 4 banana.
I got the impression that 10-11psi would be max on 11.3:1 but 25psi will be
very interesting to see :eek: nice one.
Look forward to the updates etc. Roy

[dxb335d]

Nice one CAA, one question would be on the head gasket? Will this last? What about longer head bolts to stop lift or are you planning on this anyway?

Does the standard m3 head flow enough air stock for you to get the good gains or will you have to port and flow the head also.

I like the way you are doing this properly. I do like seeing that in a company (Low comp pistons etc) i know that the stock engine, if in good condition will take a turbo charger withl low boost but at least your car will be ready for further turbo upgrades in future. Where are you based? i would love to come down and see this baby!


Carlos


P.S just re-read original post and noticed you state ''head work'' will this include larger valves? Would it be worth boring out as your having the engine out and fitting over size pistons, if the block is thick enough to be bored out and still withstand high boost pressure?

[andbecks]

I think on the original post it mentioned head work anyway..

[andbecks]

lol, just see your PS//

[acezak]

over last few weeks we have been quietly working away on our next demo car, a turbocharged E46 M3.

We hope to have it complete in january 2008, and are hoping for 650-700 bhp.




looking good, are they claimed power figures? or will you be putting it on the rollers?

[mikem]

P.S just re-read original post and noticed you state ''head work'' will this include larger valves? Would it be worth boring out as your having the engine out and fitting over size pistons, if the block is thick enough to be bored out and still withstand high boost pressure?

`Don`t think its possible to bore out the engine and boost it, Kelleners offer a conversion to 3.4 ltres (this is what the factory originally intended to do but decided there wasn`t enough tolerance left) to hit 400 hp and stay N/A.

[dxb335d]

So Mike it seems stock bore size is ok for forced induction but boring out will reduce the cylinder wall thickness too much for F/I!


Carlos