MyE28.com

How has the megasqirt system been doing in ya guys cars....

And if ya had a tcd non-intercooled with a megasquirt setup how much more power ya think you could squeeze out...?

Just a question

wouldn't you get a few more ponies with an intercooler since it will cool the itnake charge more? maybe i am reading the question wrong.

[QUOTE="rundatrack"]How has the megasqirt system been doing in ya guys cars....

And if ya had a tcd non-intercooled with a megasquirt setup how much more power ya think you could squeeze out...?

Just a question [/QUOTE]

With full megasquirt or with megasquirt just controlling fuel? With megasquirt controlling only fuel, power output will be identical to a properly tuned car running Motronic, but it will be easier to tune for big power/boost since you can control larger injectors more easily. Duke is using monstrous injectors in his TEC3 setup (72lb ones I think!), which would be difficult to impossible to do with Motronic alone.

With a full megasquirt you could probably squeeze out a few more hp due to the fact that you can add timing to just before the point of detonation on boost and also improve lower rpm torque by advancing the timing. I wouldn't imagine it being worth more than 10-20whp though.

Jeremy

I think i disagree with this. Once you move to forced induction, you should ditch motronic and go with MS, even if its only fuel. You should get more power/torque simply because you can do a more accurate job delivering fuel than Motronic + mechanical hacks can. Motronic has no idea you're boosted, after all. You may as well not even have it.

[QUOTE="Matt"]I think i disagree with this. Once you move to forced induction, you should ditch motronic and go with MS, even if its only fuel. You should get more power/torque simply because you can do a more accurate job delivering fuel than Motronic + mechanical hacks can. Motronic has no idea you're boosted, after all. You may as well not even have it.[/QUOTE]

These are the kinds of statements that KILL me.
!@#$

There is zero power to be gained at WOT because of more accurate controls! The 745i had a perfect AFR at WOT with the Motronic and mechanical hacks.. The HP gains are from the removal of the AFM. MS should also given better drivability.



[Edit by TCD on [TIME]1118084403[/TIME]]

With a full megasquirt you could probably squeeze out a few more hp due to the fact that you can add timing to just before the point of detonation on boost and also improve lower rpm torque by advancing the timing. I wouldn't imagine it being worth more than 10-20whp though.

Jeremy

I'm planning on buying a MegaSquirt pre-assembled from these guys. http://www.rs-autosport.com/

If I want to control fuel and timing, which unit do I need to order...the MegaSquirt with MSnS extra or the MegaSquirt with MSnS extra and "Hardware Mods"?

TIA

Damon in STL

[QUOTE="Damon in STL"]

I'm planning on buying a MegaSquirt pre-assembled from these guys. http://www.rs-autosport.com/

If I want to control fuel and timing, which unit do I need to order...the MegaSquirt with MSnS extra or the MegaSquirt with MSnS extra and "Hardware Mods"?

TIA

Damon in STL[/QUOTE]

Damon,

You need to contact Peter Florance (peter@firstfives.org) to buy a unit. He has been doing a pretty good business just repairing preassembled units purchased from other companies.

Todd


[Edit by TCD on [TIME]1118090916[/TIME]]

Todd - i didnt' specify at WOT because i realize that any system can be tuned to provide ideal power at a single point.

My claim is that the additional tunability of MS will give you the opportunity to make more torque/power ...in general.. than you could with hacking a motronic.

Forget it. I take it all back.

[Edit by TCD on [TIME]1118101486[/TIME]]

Ok I think that the most so far with the stock computer is 20psi...

Anyone get towards the limits of the megasquirt...or got a ballpark figure on how many psi they think it can manage the stock motor?

[QUOTE="rundatrack"]Ok I think that the most so far with the stock computer is 20psi...

Anyone get towards the limits of the megasquirt...or got a ballpark figure on how many psi they think it can manage the stock motor?[/QUOTE]

At 20 psi....you are at a mechanical limit, not electronic. TEC3 can run a 1000+ HP V12 easily. 20 psi is testing the limit of any head gasket.

Even though I have built my motor specifically for FI, I will not be going past 20 psi. It will be plenty, I am sure.

[QUOTE="rundatrack"]Ok I think that the most so far with the stock computer is 20psi...

Anyone get towards the limits of the megasquirt...or got a ballpark figure on how many psi they think it can manage the stock motor?[/QUOTE]

[QUOTE="Duke M535Ti"]At 20 psi....you are at a mechanical limit, not electronic. TEC3 can run a 1000+ HP V12 easily. 20 psi is testing the limit of any head gasket.

Even though I have built my motor specifically for FI, I will not be going past 20 psi. It will be plenty, I am sure.[/QUOTE]

Oh ok I see what ya saying..anyway to get the mechanical limit up with a thicker headgasket or a different material gasket?

Just asking....I have never felt a turbo'd e28...so I am just trying to image the power....no one local to take a ride.... !@#$

[QUOTE="rundatrack"]Oh ok I see what ya saying..anyway to get the mechanical limit up with a thicker headgasket or a different material gasket?

Just asking....I have never felt a turbo'd e28...so I am just trying to image the power....no one local to take a ride.... !@#$ [/QUOTE]

How local do you need? I'm in central Ct along with Chris (if he ever puts that car of his back together!). Your sig says Long Island, so that's not far. If you need more power than 20psi provides, you have some serious issues.

Jeremy

The head gasket is the limitation. What did BMW use for head gasklets on the 1300 hp M10 based turbo engines in the 1980's Formula One cars?

Porsche got around this on their turbo prototype cars by welding the heads to the cylinders!

That's why they developed the four valve heads for the 935, 956, and 962 race cars ... so they could insert the valves after the heads were welded onto the cylinders.

Be a hero and weld an aluminum head to a cast iron block on an M30 engine!

Eddie

I can also build those systems. I won't be price-competitive with them, but can customize the box for you app if necessary.

With a full megasquirt you could probably squeeze out a few more hp due to the fact that you can add timing to just before the point of detonation on boost and also improve lower rpm torque by advancing the timing. I wouldn't imagine it being worth more than 10-20whp though.

Jeremy

I'm planning on buying a MegaSquirt pre-assembled from these guys. http://www.rs-autosport.com/

If I want to control fuel and timing, which unit do I need to order...the MegaSquirt with MSnS extra or the MegaSquirt with MSnS extra and "Hardware Mods"?

TIA

Damon in STL

Damon in STL wrote:

I'm planning on buying a MegaSquirt pre-assembled from these guys. http://www.rs-autosport.com/

If I want to control fuel and timing, which unit do I need to order...the MegaSquirt with MSnS extra or the MegaSquirt with MSnS extra and "Hardware Mods"?

TIA

Damon in STL

The map sensor that comes "stock" with the MS kit is 2.5 bar. This is 1.5 bar boost, i.e. ~22psig. There are many other map sensors that are direct replacements and go much higher, you just have to tell the software what you have.

[QUOTE="rundatrack"]Ok I think that the most so far with the stock computer is 20psi...

Anyone get towards the limits of the megasquirt...or got a ballpark figure on how many psi they think it can manage the stock motor?[/QUOTE]