Pod Filter Result

[m10man]

I thought I would post this as it is one of the most popular questions. I put a stainless steel mesh Blitz style pod filter on my 2 litre M10 and it has made quite a noticeable performance increase. My engine is not stock, so whether you would get the same increase on a stock engine, I don't know, but I am happy with the results.

[Jhonno]

butt dyno or measured?

[m10man]

G-Tech test to be done on weekend. Independent dyno test on this style of filter showed an 8hp increase.

[Boots_Walker]

thats interesting - dont forget to give us an update when youve tested it

[m10man]

Here are the G-Tech results. Now unfortunately at the same time I upgraded my ignition system, so the increase is for both items. The increase is 40bhp with the pod filter and ignition upgrade. I would estimate a 10bhp increase for the pod filter. Anyone out there with an M10 should seriously consider the ignition upgrade from e21parts.net It really is the missing link for getting performance out of an M10. I now have 207bph out of my 2 litre M10. Next stop is the dyno to confirm what the G-Tech is telling me.

[nav786]

207bhp and

[johnono]

exactly what ignition upgrade have u performed there matey!

[Jhonno]

207bhp... yeah right

[m10man]

So you dont believe Jhonno. You will when I post the dyno plot. You are forgetting that Alpina got 185bhp out of the 2 litre M10, and I have done a lot more extensive head porting and dont have the inhibition of Kugelfilscher injection that Alpina had with the 2002 A4S. The BMW mechanic who helped me with the build got 225bhp (dyno plot to prove) out of his normally aspirated 2 litre M10. You just watch Si316's M10 scream when it gets going. He has done a similar build. Wait till I put the turbo on mine. There will be some serious mumbo coming out of this little M10.

[m10man]

The ignition package consists of the Bosch High Voltage Red Coil, Bosch premium distribitor cap and rotor, Custom made 8.8mm Accel 300+ race wires and Autolite AR52 Race Plugs with a gap set at 1.27mm

[Gwynleym10]

I have done a lot more extensive head porting

Can you give me some more info on this please, got this brand new cyclinder head just waiting.......thanks!

[Gwynleym10]

The ignition package consists of the Bosch High Voltage Red Coil, Bosch premium distribitor cap and rotor, Custom made 8.8mm Accel 300+ race wires and Autolite AR52 Race Plugs with a gap set at 1.27mm

So would this work with my standard l-jetronic setup? Looks as if it would make a good gain just from that.

Thanks

[Jhonno]

Erm what i should have put (sorry i was drunk when i typed my previous reply..) is what exactly have you done? It takes individual tb's and standalone ecu plus cams or headwork to get that sort of figure out of a more modern 2.0 16v engine in the form of Vauxhalls XE lump

[m10man]

Can you give me some more info on this please, got this brand new cyclinder head just waiting.......thanks

No problem, are you doing the porting yourself, or getting a machine shop to do it?

[m10man]

We are not talking about a Vauxhall lump here, the M10 is a brilliantly designed engine. The heads are very well designed for great flow. I am not sure what the XE is but here in Australia Holden have the (Vauxhall) Astra SRi Turbo, I had a run with one the other day and he couldn't get near me. But to be honest with you, I was blown away with the results after putting the new ignition setup on. I was running at 160hp before, and I was expecting to get to 180hp with what I have done to the engine. I was told that this ignition set up was something specail, now I believe it. I had to re-do the tests because I didnt believe the results at first myself. But I also know what the M10 is capable of, I have seen some crazy hp figures many times before. A local guy is running a turbo 2 litre e21 at 32psi and is pulling 550hp at the wheels, the thing is an abslote mental machine, he can't run constant full throttle because it just wont stay straight. But he still blows porsches and WRX's away with ease. You just gotta love that M10. We are putting together a website soon with our cars and the details of engine build and mods and data. For you M20 fans my brother in law is the 6 pot man, he is building a supercharged 325i and is expecting around 340hp. The thing is basically a road registered track car. Should be a real weapon.

[m10man]

So would this work with my standard l-jetronic setup? Looks as if it would make a good gain just from that.

Thanks

[/code]

Yes it should. The coil lead is designed for the e21 320i so you need to re-position the coil closer to the distributor. Many ignition set-ups have been tested to come up with this package which really does bring the M10 to life. The premium rotor does not have a limiter on it so it would be advisable to to buy a rev limiter or at least a shift light, because with this ignition set up the M10 just wants to keep reving! The thing winds up tighter than a banjo string!

[Jhonno]

We are not talking about a Vauxhall lump here, the M10 is a brilliantly designed engine. The heads are very well designed for great flow. I am not sure what the XE is but here in Australia Holden have the (Vauxhall) Astra SRi Turbo, I had a run with one the other day and he couldn't get near me. But to be honest with you, I was blown away with the results after putting the new ignition setup on. I was running at 160hp before, and I was expecting to get to 180hp with what I have done to the engine. I was told that this ignition set up was something specail, now I believe it. I had to re-do the tests because I didnt believe the results at first myself. But I also know what the M10 is capable of, I have seen some crazy hp figures many times before. A local guy is running a turbo 2 litre e21 at 32psi and is pulling 550hp at the wheels, the thing is an abslote mental machine, he can't run constant full throttle because it just wont stay straight. But he still blows porsches and WRX's away with ease. You just gotta love that M10. We are putting together a website soon with our cars and the details of engine build and mods and data. For you M20 fans my brother in law is the 6 pot man, he is building a supercharged 325i and is expecting around 340hp. The thing is basically a road registered track car. Should be a real weapon.

the vauxhall lump isnt to shoddy itself, considering it came out in 1988 not many 2.0 cars produce more power today and the cars it came in can still hold their own.. It was used in the Touring Cars and rated at over 300bhp in that guise. Im not saying the m10 isnt a good tunable lump however im still unsure as to how a 2.0 8v from yesteryear can make more power than more modern 2.0 16v even after seperate tb's and standalone management with cams or headwork!

If it does then fair do's however i shall remain sceptical for now

If you are using the G-Tech meter - what 0-60 and 1/4mile are you getting?

[m10man]

It is simply how well the air/fuel mixture gets into the combustion chamber, how it combusts and how it extracts from the chamber. There is very little hinderance in the m10's ports. My friend who has been an M10 mechanic/fanatic for more than 20 years, who is also good friends with the guy who used to work on nelson piquets m10 based m12/7 formula one engine knows what he is talking about, and he tells me that 325hp is possible out of a normally aspirated M10. He has the plans for the build and will do it one day, if I dont beat him to it. But dont mind me, I am just an M10 nutter! Haven't done 1/4 mile yet, but 0-62 so far is 8.9 seconds taking it to 6200rpm, I will get this down some more once I tweak the timing a bit more and take it to 6500rpm. Just taking it easy while the engine is still relatively new.

[Gwynleym10]

Quote:
Can you give me some more info on this please, got this brand new cyclinder head just waiting.......thanks

No problem, are you doing the porting yourself, or getting a machine shop to do it?

Well i was hoping on doin it myself, if i can get enough information on how to do it! I'm in no rush to do it, so just want to gather as much info as possible, and see if i can do it!

Thanks for any help!

[Boots_Walker]

sorry if i missed it, but what did this ignition setup cost you? how much are the plugs/how long do they last? does running a setup like this have any reliability durability issues?

[brento]

makes me really want to fix up my 83 e30 318i (the one i hit the roo in)

it has extractors sports exhaust, shaved head. del clutch fan, pod air filter
what kind of gains could i get from one of these igition kits ?

[Ade]

ignition kits are never going to give a magical power upgrade despite what the manufacturers claim. The best they can offer is a reliable and strong spark at all engine speeds. Big coils and special wires wont give you such a big gain either.

At 6500rpm the crank is spinning at 108 revs per second. Thats 54 sparks per cylinder every second! (If my maths is correct... ) If a worn/inadequate ignition missfires just once in that period, youre unlikely to notice it but thats almost a 2% drop in torque and hence peak power.

However they can sometimes alter/remove a rev limiter so it kicks in later or has a "softer" retard curve which can help prop up the torque at peak revs.

Sorry to be a killjoy.

[Geeman]

I gotta say that 200bhp from an M10 is great!

And 340bhp from an M20 is even better!

Get your website up soon, would LOVE to have a look! Would come and see you, but Oz is a little too far away!

[m10man]

The M10 stock ignition is a weak point. Det set, this ignition upgrade really does bring the M10 to life. It has been proven by constant results with the developer e21parts.net, and by myself over the weekend. Using a G-Tech and controlled testing (ie. same starting position, take off revs, rev limit etc.) I put the stock igntion set up on my car and the average result at 6000rpm was 171hp. After putting the upgraded ignition on, the average result was 188hp at 6000rpm. That is a consistent 17hp gain.

Now my engine is not stock, so on a stock engine the gain would be less, however the consensus on the e21 320i forum is a 10hp gain with the upgraded ignition. For those of you who are interested, the details of the package are at www.e21parts.net This is the only place where you can buy the ignition leads as they are custom made one by one by Fred at e21parts. However you can buy the other items separately. I could not get them in Australia, so I bought the whole package off Fred. But here are the part numbers.

Bosch High Energy Red Coil. Part no. 0221119030
Bosch Premium Distributor Cap. Part no. 1235522056-85E
Bosch Premium Rotor Button. Part no. 1234332215-85E
Autolite AR52 race plugs

Note that these parts are only for an electronic ignition system, but I think all E30's are electronic. Correct me if I am wrong.

Also note that the Premium Rotor Button does NOT have a limiter on it. It is recommended to put a electronic limiter on as the engine wants to keep reving past 6200rpm strongly.

They also sell rocker shaft retainers which replace your rocker shaft retaining springs, which are also a weak point on the M10. They are a worthwhile investment against rocker breakage, particularly if you enoy hearing that little M10 rev.

The cost for the whole package is $173.50 US dollars.
The cost just for the ignition wires is $75.00 US dollars.

And here is something interesting. With the stock ignition and the stainless steel pod filter (here after just called pod filter) power went down to 158hp at 6000rpm. However with the upgraded ignition on and the pod filter, power went up to 188hp, the same power as with the stock air box on. But, the power band was noticeably wider with the pod filter on. With the stock air box, launching at 4500rpm there was just enough wheel spin to get a good take-off (0-100km/h was 9.3 secs), with the pod filter on launching at 4500rpm the wheel spin was crazy, I had to drop the launch revs to 4000rpm for a 0-100km/h of 8.9 secs. So the pod filter with the ignition upgrade is better than the stock air box.

Believe it, or not.

[Ade]

Got any Dyno graphs you could post here?

[m10man]

I live in the country, and getting to a Dyno is not easy, but yes I am going to organise to put my car on a Dyno soon, and will post the graph. I will post the Dyno graph of the 225hp normally aspirated M10 as soon as I get it. The guy who has it is away. I think he gets back this weekend, so I should be able to post it next week.

[Ziggy]

0-62 so far is 8.9 seconds.

Surely that's quite a lot slower than a standard 325 which supposedly has less power & more weight than you? Or am I missing something (quite likely!)??

I'd always take the g-tech power figures with a big pinch of salt - they're often miles off in my experience, though the 0-60's pretty accurate.

Looking forward to seeing that dyno plot!

[m10man]

Sorry guys, I was talking out of my arse, I am not one to make false claims and will admit it when wrong. I have to make a correction on M10 power possibilities (I was talking to my friend who has F1 connections). I said earlier in this thread that 325hp is possible out of a naturally aspirated M10, this is not true, 240 is about the max, and that is a full race engine with programmable fuel and ignition. The Eggenberger team in the 1980's got 220hp out of the 2 litre 2 valve head M10, but with todays computerised engine management systems you can get up to 240. The 325hp engine he has plans for is a supercharged engine. I think that my G-Tech is not giving me an accurate rating of my engine. I think it is about 160hp. I built it to 150hp specs, so with the pod filter and new ignition I reckon it is about 160hp. Dyno run still to come.