M40 convertible turbo*update mark 3*

[benjy]

Oh my god!!!! WOW WOW

So its alright then???
I know your prob still shakin with excitment but i agree with smithy, we need pics and more words!!!!

[eko]

Oh my god!!!! WOW WOW

Spill the beans then

[Ant]

I have lots of pix will upload and link em up in the next few days.

[OBs]

I have lots of pix will upload and link em up in the next few days.

Few days? A few bloody days!!

We demand pictures now.























Please

[Ant]

A few pix for your entertainment

[gcorky]

nice work Ant

[CHRISP]

Well where do i start ! All the production pics Ant has got for now but when i get then will post some

Well as for the conversion i have been smiling for two day now Looks great , Sounds Awesome and Gos f------ Quick not tested at the lights yet, But i now somebody who's seen a e36 328 off in it ,not bad for m40 a!!!

I would definitely recommend Ant to do Work on anybodies car. he honest up front with any problems and very helpfully

Tony / ben / andy I will be down trago on Monday PM if you want a look

[gcorky]

what boost,expected bhp/torque.....ball park?

[CHRISP]

what boost,expected bhp/torque.....ball park?

All torque mate because it a cab, Will be going on rolling road soon will post figs

[OBs]

Tony / ben / andy I will be down trago on Monday PM if you want a look

Hello Chris! Yea would be nice to see it

But them two undesirables will proberly be round mine mate (Torquay) thats about 20 - 30 mins away from Trago...

Your more then welcome to pop round or we will come and meet you?

Give me a bell - 07934384245

Andy

[BIGTKB]

Pop round on sat mate! I gotta see it or . You can check out Amys contribution to the south/southwest E30s at the same time.

"Cheers again Tony, she no longer has E30 withdrawal symptons"

[eko]

"Cheers again Tony, she no longer has E30 withdrawal symptons"

She is happy then

[BIGTKB]

She is happy then

Yeah mate. She didn't think she would be happy with anything less than a 2.5 but being without a car for 6 months it'll be nice for her to have transport again. Just gotta raise ins down payment now

[OBs]

Falling over him self???(

Spill the beans

Andy

[BIGTKB]

Spill the beans

Remember when bimmaman did a bimmaman! at the greenham meet? He went up the arse of my car. Well... Went down to tonys to buy Amys car on tues and noticed the bump strip in front of my rear arch was popped out. 1st thought was twisted chassis as it wouldn't just pop back in and PSYCHOLOGICALLY the car looked like a banana. This was just an illusion as Tony tripped over the curb and fell onto my car. Looked for scratches and HEY PRESTO my car was straight again!!! He's a human jig!

[Ant]

a Mini write up to follow...

Well , the expected turnaround time on this was 4 to 6 weeks , not because I'm lazy but everything has to be made as a one off to suit, and in this case I actually did the conversion twice

1st setup was completed in 5 weeks, but the intake temps were higher than I wanted, especially given the intecooler size and known efficiency, the answer was go for a larger compressor unit , this would boost the same, but with more spare capacity and not force the IAT up as high.

I sourced a revised turbocharger to suit, downside was I had to repackage the whole setup due to the physical size increase, the original top mounted turbo manifold was scrapped and replaced with the bottom mount you can see in the pic above, the long exit branch is there to provide a smooth collector for all the gasses from the 4 into 1 log section, then carry this flow down to the turbo inlet port.

The revisions meant I had to replumb the intercooler and oil feed areas to suit, but the new package was far neater and compact as a result, if a little stealth in that unless you know where to look, there's no evidence of it being there.

ChrisP's car HAD to retain its CAT which was a limiting fator, I used 2'5" stainless to make the complete downpipe and system, and placed a 200 cell stainless cat downstream of the turbo , an emissions test revealed the following figures.....

CO2 ( max 0.30%) 0.01
HC ppm ( max 200) 30ppm
Lambda (0.97-1.03 max) 1.03

I used smaller injectors than I'd have liked because the limits are so stringenet, there's enough flow there now for 200HP , no more as resoloution is limited by minimum injector opening times.

now the emissions are not the most exciting part of the swop, reaching those targets is not easy, a lot of mapping of the main tables, and the 02 driven correction has resulted in emisssions that are lower than stock

To protect the cat, the car is mapped to run stoich through the rev range until boost goes over 110 kpa, there are also trim maps triggered by the tps to give a richer mixture for accel/overtake, we push from 14.5:1 afr to 12.1 on heavy accel, almost like a carb pump jet if you remember those.


My brief was to bias the conversion for torque, the M40B18 is not the guntiest engine in the world, and in the heavier cab its less of a fireball than usual, so this is where my efforts were concentrated.

Rether than use the turbo to pump a head of boost pressure into the engine, were using it to push the VE up to 100% everywhere, with small head of boost over and above atmosperic.

the end result is almost zero lag( unless you're in a too high gear) and instant go when you need it.

Drives great, sounds great, uses little or no fuel when driven hard, runs same temps as stock too, always a bonus.

If and when Chris decides he'd like more power and torque, the ECU and turbo will have plently in reserve, however the torque will move up the rev range at the expense of higher bhp figures.

TBH I drove it for 3 days never wnating more, the delivery and economy are spot on and suit the characteristics of the cab perfectly.

Arse dyno would put the torque on par with a 2.7 and the HP around the M20B25 level, all that and 30mpg too.

soory to bore/technobabble you all, but this is good onfo

[chu346]

Looks good.....

So what would be the max power from one of these engines?

30mpg, I can't remember those days

[tylerma]

nice one chaps

Chris
you must be well happy

[CHRISP]

nice one chaps

Chris
you must be well happy

Over the moon Malc very impressed with it all and Ant, See why you went to him he knows his stuff.
Chris

[Ant]

couple more pix....







Better shot of where the turbo lives, and one showing the original manifold setup prior to "filling in the gaps"

[BIGTKB]

Cheers for the ride Chris definately the quickest 318 i've ever been in and I love the sound . I reckon you should change your pic mate, that hard top roof looks well nice! Finishes the car off.

[CHRISP]

Cheers for the ride Chris definately the quickest 318 i've ever been in and I love the sound . I reckon you should change your pic mate, that hard top roof looks well nice! Finishes the car off.

Thanks Tim it dose go well
Will put new pics on soon,

Is that Amy on bonnet of that car

[BIGTKB]

No its not. She copied the pose on her own car though but u will have to wait til she joins the zone to see it! (she may even wait until its been sprayed pink)

p.s Amy says; She wouldn't be seen fully clothed on the bonnet of a french car let alone naked!!!

[OBs]

Nice to see you again yesterday Chris Well...

*After you finished doing Turbo induced donuts, with 'Fat' tunes pumping out your stereo and chicks getting all jiggy with it in the back of corse...

Car looks and sounds nice buddy

Andy





















*I might of made some or all of that up... Well actually all

[tylerma]

so Chris
you coming along to gaydon/santa pod this year?

[eko]

Yes car looks sweet Chris!
Credit to Ant on his part,done a cracking job

Should have took me up on that offer on a race though,could have made a good topic of conversation on here,8 valves versus 24 valves

[OBs]

Oh yea and full credit to Ant

Really neat job

[CHRISP]

so Chris
you coming along to gaydon/santa pod this year?

Hi Malc yes mate will be there perhaps we can have a ANT stand

[e30_Turbo]

so Chris
you coming along to gaydon/santa pod this year?

Hi Malc yes mate will be there perhaps we can have a ANT stand

I'm gonna be there too, I'm sure Racecar, Erel, Dimmy & midnight will come along, Alex also if he's not locked himself in his shed again over the summer.

Maybe a "A-TECH" stand would be the order of the day!

[CHRISP]

Thanks to you Torbay boys for the mini meet gald you like it as you all said credit to Ant

Fozzymonster will see you all at Gaydon

[brian325i]

perfect summer cruiser..and with the top down you can hear all the comotion under the bonnet..mint

[ac]

chrisp

how much did that conversion cost. i might have it done to my 318i cab

[CHRISP]

chrisp

how much did that conversion cost. i might have it done to my 318i cab

All conversion are different depends what year, cat or no cat and what spec you want talk to Ant is best for job.
It not cheap!!

[randomdave325]

looks good m8. i need to see it. top work there ant. credit due.
chris get it on the rollers init. i'll throw a run in for the price of the hardtop.
is it running mega squirt? has it got a limiter?? m40 turbo racin cab. love it

[CHRISP]

looks good m8. i need to see it. top work there ant. credit due.
chris get it on the rollers init. i'll throw a run in for the price of the hardtop.
is it running mega squirt? has it got a limiter?? m40 turbo racin cab. love it

Hi dave how thing with you ?

Ant has done a cracking job Yes it is running MS so you can plug in, i dont know about limiter you would if to ask Ant .
Ant Said you got to stick something up the ass end to put it on RR, wide band i think

How is your M50 baby up and running again?

hardtop sweet mate now i have referb it will drop money round first week in May thanks again mate
Chris