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06-03-2002, 10:33 AM
M10B18, stock w/ 6-8 psi turbo boost?

from 105hp to 150,175???? more?

Just wondering & pondering while I wait for my kit to arrive.

06-03-2002, 03:12 PM
depends on a number of factors I would say stock you could achieve 150-170hp (6-8psi). Depends on what you mean by stock, is the exhaust stock?, how will you manage the extra fuel required? or the ignition retard under boost that will most likely be needed? Is it intercooled? Properly set up with the right components its quite possible to see upwards of 190hp from 8 psi with a stock internally 1.8l engine.

KC Ron Carter
06-03-2002, 08:04 PM
The image of hp and no torgue can be very misleading.

You may want to consider the acceleration from 60 to 100 mph as a better real world scale. Especially on any turbo installation.

The supplier can make a system that does great on the dyno and mush on the street.

The desired usage also sets some basic guidelines.

If not a daily driver putting a lower ratio differential will move the best power band into the normal cruise speed.
Makes a good car feel great.
A great car feel killer.

The best I have heard of was a special M-5 at 3 seconds flat.

That would be super killer and would leave your impression in the seat.

In the March copy of Total BMW , a British magazine they have revisited a 1974 2002 turbo. With M10 head and T35 turbo with no posted pressure. I would suspect at least 12 psi maximum.

745i intercooler with Zytec engine management, Ford turbo boost controller, standard 318i cam and intake, e30 318i head, 3 inch exhaust, ring sealed block, and Bosch Green injectors.

It now produces 245hp at wheels and 310 on dyno.
OE 2002 turbo was 170 bhp with Kugelfischer injection and no intercooler.

Ron Carter

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06-03-2002, 10:57 PM
Can you post a scanned copy of that total bmw article? I stopped by the mag shop but it only had the may issue(march is that one)

Jim Roal
06-30-2002, 08:48 PM
I have a spreadsheet online that will estimaste this for you. However, as a rule of thumb, the power increase will be proportional to the pressure increase. Now you have atmospheric pressure. If you run 7.5psi you will get about 50% more power and torque. My 318i had about 105hpat the crank stock. G-Tech now reports 184hp at the wheels though an auto trans. That is about 220hp at the crank with 12psi intercooled boost.

08-12-2002, 03:04 PM
Does anyone have any more information on a turbo kit for my 76 2002? I am very interested in learning more. I think I may make it may winter project, pors/cons.

74 3.0 cs
76 2002

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