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andpgudOffline
Post subject:   PostPosted: Mar 20, 2012 - 05:15 PM
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Has anyone tryed to adapt some m50 heads to the m70?
Why did they make the heads so crappy on the m70?
 
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AdrianBurtonOffline
Post subject:   PostPosted: Mar 20, 2012 - 10:12 PM
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andpgud wrote:
Has anyone tryed to adapt some m50 heads to the m70?
Why did they make the heads so crappy on the m70?


Have a look thru the 12 forum, there have been many conversations about heads and how the only real option if FI unless you know of someone that can make a set for us Very Happy

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andpgudOffline
Post subject:   PostPosted: Mar 21, 2012 - 05:13 PM
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So my only option here would be a supercharger. Nothing else I can do to the motor?
Lets say I get the supercharger kit. Something else I could do beside that?
 
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AdrianBurtonOffline
Post subject:   PostPosted: Mar 21, 2012 - 06:40 PM
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racingpowerplant.com

That isnt your "ONLY" option, but the most cost effective

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wire2Offline
Post subject:   PostPosted: Jun 27, 2012 - 02:58 AM
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flyhilandsoft wrote:
It takes horsepower to make more horsepower. If you are lacking in the horsepower range than it wouldnt be benificial. Superchargers are belt driven unlike a turbo which is driven by the exhaust. Here take a look at this......

http://www.youtube.com/watch?v=_vaw5zwnhrA&feature=related

Just to be clear; a turbo is also a parasitic load on the engine. All the exhaust passages are chanelled into a single rather small opening of the turbo flange. Then the exhaust gasses have to push past an impeller to get out. It takes energy from the crankshaft to push the piston up on the exhaust stroke to do all this. There's no free lunch.
But while the turbo may cost ~30 hp loss due to exhaust restriction, it will gain ~150 hp with a denser air/fuel intake charge, so you're up 120 hp.
 
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andpgudOffline
Post subject:   PostPosted: Aug 01, 2012 - 06:55 PM
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The s70 is ready!!

 
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AdrianBurtonOffline
Post subject:   PostPosted: Aug 02, 2012 - 04:00 PM
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DETAILS!!!!!

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andpgudOffline
Post subject:   PostPosted: Aug 05, 2012 - 02:19 PM
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AdrianBurton wrote:
DETAILS!!!!!


As for now it is just a stock S70 that I am putting into my e31. It has Magnecor cables and other than that it is stock. I would like to get more out of it. What would I gain with a dry sump?
 
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Richard454Offline
Post subject:   PostPosted: Aug 06, 2012 - 04:07 AM
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With the S70- the higher compression -is going to limit the boost you can run-turboing or supercharging...

I've decided to run the M73- w/ M70 parts on it and add ITB's...I'm not expecting much more power- just trying to add to the 'coolness' factor.

I have decided ater a heck of a lot of research to get noticable more power out of these engines is JUST not cost effective.

A dry sump- for the street- is really not needed-unless you are seeing some "track" days and need the extra protection from loosing oil pressure while cornering.

I'm runnig a dry sump because I HAD to- for clearance issues.

Theoretically you'll see 5-10% more HP because the external pump is pulling a vacuum - creating a better sealing of the piston rings.

Richard









 
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Richard454Offline
Post subject:   PostPosted: Aug 06, 2012 - 04:08 AM
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Double post????
 
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jdinnerOffline
Post subject:   PostPosted: Aug 06, 2012 - 12:25 PM
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Very pretty Richard.
What are you using to run the EFI and ignition?

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AdrianBurtonOffline
Post subject:   PostPosted: Aug 06, 2012 - 10:47 PM
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R454

That engine looks NICE, details on the intake....

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Richard454Offline
Post subject:   PostPosted: Aug 07, 2012 - 03:57 AM
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I'm looking at the Megasquirt-the guys at DIYAUTOTUNE are local to me-not buying the kit- but an assembled unit

MS330-K $378 Megasquirt-III kit with V3.0 PCB
MS3Xpander $90 MS3X expansion card
JimStim-K $59 JimStim Stimulator kit
StimPower $9.50 Power supply for JimStim
MSHarness8 $67 8' main board wiring harness
MS3X-Hrn8 $72 8' MS3X wiring harness
IATwPiggy $22.25 Intake Air Temperature Sensor

Ignition- looking at the LSx truck coil near plug-

Adrian- I messed w/ several designs.... I originally looked at doing downdrafts-was thinking of going w/ Weber carbs..

I bought some Weber DCOE waterjet ½ aluminum plates on eBay- then simply cut down a stock manifold w/ a sawzall...Test fitted it- then took the tubes I cut off to my buddy's machine shop and milled them down. Simply tack welded the plates-done!!! I'm going to use the original injector holes for vacuum ports.

Believe it or not- the Weber carb uses 90mm center to center- and the M70/73 are exactly the same!!! It was really easy as it turned out. The throttle linkage on the ITB's fits together- I just have a left side and a right side lever to control all 12. I can even use the STOCK fuel rails.

Here's the downdraft mock up-


Richard
 
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andpgudOffline
Post subject:   PostPosted: Aug 07, 2012 - 03:55 PM
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Richard454 wrote:
I'm looking at the Megasquirt-the guys at DIYAUTOTUNE are local to me-not buying the kit- but an assembled unit

MS330-K $378 Megasquirt-III kit with V3.0 PCB
MS3Xpander $90 MS3X expansion card
JimStim-K $59 JimStim Stimulator kit
StimPower $9.50 Power supply for JimStim
MSHarness8 $67 8' main board wiring harness
MS3X-Hrn8 $72 8' MS3X wiring harness
IATwPiggy $22.25 Intake Air Temperature Sensor

Ignition- looking at the LSx truck coil near plug-

Adrian- I messed w/ several designs.... I originally looked at doing downdrafts-was thinking of going w/ Weber carbs..

I bought some Weber DCOE waterjet ½ aluminum plates on eBay- then simply cut down a stock manifold w/ a sawzall...Test fitted it- then took the tubes I cut off to my buddy's machine shop and milled them down. Simply tack welded the plates-done!!! I'm going to use the original injector holes for vacuum ports.

Believe it or not- the Weber carb uses 90mm center to center- and the M70/73 are exactly the same!!! It was really easy as it turned out. The throttle linkage on the ITB's fits together- I just have a left side and a right side lever to control all 12. I can even use the STOCK fuel rails.

Here's the downdraft mock up-


Richard


Is that how much it costed you with the ITB?
How much is is spitting regarding power?
 
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Richard454Offline
Post subject:   PostPosted: Aug 09, 2012 - 02:39 PM
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The Throttle bodies- I got from Jenvey in the UK. It was a little over $2K US for the 6 twin throttle bodies and interconnecting linkage. I'm using the stock manifold -just cost me a couple of pizzas to cut it down at my friends machine shop(bought them lunch!) I still have to have them welded up- they were just tack welded to test fit.

As far as power- stock the M73 was 326HP -w/ cats ad all the ancilary stuff (PS & AC). I'm just running an Alt and no cats w/ sidepipe exhaust- I did clean up the exhaust manifolds a bit- but everything else is stock. I'd guess around 375?

Like I said before- w/o serious money- the enigine is pretty tweaked stock-limited to head flow- there is no somple way to add more than a few HP.

I'm thinking 375HP in a 3000lb car- with the sounds the V12 emits -is all I'll need.
Richard
 
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