250 hp 325is

[e30Matt]

I'm not saying that your system behaves like this; I'm just saying that this is the typical turbo characterisitc to which some people object, because they are wimps or becasue they find this characteristic detrimental to lap times.

Learn to drive around it. Wuss. :)

[TCD]

If you want to talk about your product's characteristics, perhaps you could share some details about what makes your system behave differently than a typical turbo.

What is typical? What some hack threw together with junkyard parts? A 1978 930? A 1982 745i? A Volvo 850 Turbo? What is typical? Have you ever ridden in a turbo m20 powered car?

Our setup is not just thrown together. The turbo is carefully chosen. The exhaust is properly sized to reduce lag.

Consider this, the engine is totally on song at about 3700/3800rpm. Full boost, on cam, really happy, big power. It is like that all the way to the rev limiter. How often in a track event would you ever be much below that rpm? Even if you were the car is very easy to drive.

Turbo lag just isn't an issue. Please remember that I drive these cars every day. Not just this one but a turbo 5,6,7 and 3. My comments are my personal opinion from actual driving not speculation about what it would be like. I might sound like a bastard but my comments are never made off the cuff.

Todd

[Den]

No, I've never ridden in a turbo M20. Does your M30 system behave as well as the M20 does?

What do you use for engine management?

[TCD]

Does your M30 system behave as well as the M20 does?

The m30 system is different. It makes boost much sooner but hits really hard because it makes so much torque and we run more boost. We use stock engine management.

Todd

[kidrobot]

Turbo lag is so overrated. How many of you have even ridden in a properly set up turbo vehicle?

Amen

[nando]

what kind of fuel mileage does a turbo car get?

[Digitalwave]

Depends on how you drive :)

[NWMF]

back to the orignal question.im building thr m20 325i engine from the ground up. what can i do to make this a strong reliable turbo m20 this project starts this weekend and i want to build it right. and i do plan on the TCD turbo system when i get the money near the end of august.

[TCD]

what can i do to make this a strong reliable turbo m20 this project starts this weekend and i want to build it right.

Stock rebuild with head studs. That's what I would do.

[Xmarksthespot21]

TCD,

Could gains be achieved if one used a tcd kit with a stand alone system or piggyback?

[TCD]

Could gains be achieved if one used a tcd kit with a stand alone system or piggyback?

Absolutley. The Motronic is the weak link in the system. We are developing a chip to modify the timing curves which will help but the ecu nevers knows that the engine is seeing pressure.

My guess is that a stand alone is worth 50-60rwhp because it will allow strict management of the engine operation and hence the ability to run higher pressures! I am not so sure about a piggy back.

Todd

[Xmarksthespot21]

Nice.

Todd,
What does the m30 turbo kit make? and on what kind of boost?
Is there a difference between the early and late m30 kits?

[TCD]

What does the m30 turbo kit make? and on what kind of boost?
Is there a difference between the early and late m30 kits?

m30b34 non intercooled 12/13psi ~275rwhp
m30b34 intercooled 13/14psi ~315rwhp
m30b34 intercooled 17/18psi ~355rwhp

m30b35 non intercooled 10psi ~280rwhp
m30b35 intercooled 13/14psi ~335rwhp

No difference in the kits. Each motor makes diiferent power levels but these numbers are a good rule of thumb.

Todd

[NWMF]

TCD I wanted to know if you have a brochure that give some background on your company and some references would be great too pm me with that information

[Kavkazia]

What does the m30 turbo kit make? and on what kind of boost?
Is there a difference between the early and late m30 kits?

m30b34 non intercooled 12/13psi ~275rwhp
m30b34 intercooled 13/14psi ~315rwhp
m30b34 intercooled 17/18psi ~355rwhp

m30b35 non intercooled 10psi ~280rwhp
m30b35 intercooled 13/14psi ~335rwhp

No difference in the kits. Each motor makes diiferent power levels but these numbers are a good rule of thumb.

Todd

Todd,
When are you bringing Turbo Chips for M20 on market, please, put me down on the list!

I swear man, when I installed turbo and started it up, it felt same as it used to, I thought it was going to give me some problems, and I was kind of ready for it, pulled out of the garage, and it was smooth as it was before, hit the throttle, just took off but I didn't floor it because my gauge was off, and didn't know what boost I was running, now I installed new 15PSI gauge, running 4.5-5.0 PSI for now, and car feels great, boost comes on at around 2300RPMS and gets in full boost at 2900-2950RPMS, and it's so much easier to drive daily, you don't have to floor it to pass somebody, just little throttle, right away car starts to pull away real smooth and nice, it's unbelievable, you have to own one first to really say anything negative about it, still get same gas mileage if I keep my foot off from flooring!