Turbo 325i M20

[jules325i]

I want to build a street + Drift track car, goal 300+ HP


What is the best way to go should i build my own kit or should i buy a pre made kit. i want the boost to come in early.

[e30trooper]

Depends what kind of budget you have. Shit aint gunna be cheap. Best bet is to start reading and plan out long term.

[jules325i]

i have a 3-4k budget.

[e30trooper]

i have a 3-4k budget.

Why not just do a swap. No headaches...

[jules325i]

I live in Australia and we cannot get cheap S50s or m50s

[e30trooper]

I live in Australia and we cannot get cheap S50s or m50s

really? So there isnt e36 325i's around? What about etas?

[jules325i]

really? So there isnt e36 325i's around? What about etas?

I already built myself a 2.9 stroker and i just love the idea of a turbo"d m20.
i really want 300+ Hp to teach these imports a lesson on the track.

[e30trooper]

source your self a manifold and go from there.

[jules325i]

source your self a manifold and go from there.

Will do.
:o

[jaywood]

E30tech has a wealth of info on turbos. I'd head on over there.

Good luck.

[Cyrix2k]

300 should be easy. The direction you take will be dictated by personal preference, not really performance. If want to bolt something up and just drive, the TCD kit is probably best. If you enjoy working on the car, selecting parts, and making everything work... roll your own. Just be warned both ways will be expensive and if you make your own kit, expect some downtime.

http://www.turbochargingdynamics.com/product-30-6-13-e30_325i_Stage_2.php

[jaywood]

I started with a kit. It was definitely a good learning experience. Now that I know what each part of a turbo system does I feel I could put one together for cheaper than a kit costs. The reason I went with a kit is because I was worried about everything not fitting/matching up with each other.

[The Humjet]

Have you thought about an rb30et swap. They're everywhere over here and you could get them for cheap.
Only further modifications I'd do to one of those motors is a better ecu, arp head studs, cometic MLS gasket, intercooler kit and a larger turbo from an falcon xr6t. Garrett Gt3540 with an internal gate simply bolt it up to the standard vl turbo turbo manifold and away you go.
Reason I've thought about this conversion is they're like an m20 but their is more local support for an rb30, inlet manifold is on the opposite side of the head meaning their will be no dump pipe clearance issues due to it not being on the same side as the steering shaft.
And keep the m20 on the side for something else or you can sell it for good money.

[Cyrix2k]

I started with a kit. It was definitely a good learning experience. Now that I know what each part of a turbo system does I feel I could put one together for cheaper than a kit costs. The reason I went with a kit is because I was worried about everything not fitting/matching up with each other.

I can put together a very basic system for less than the kit costs, but honestly kit pricing isn't bad. When you add in the cost of all the connectors, shipping, parts that don't fit correctly, etc, it gets expensive very quickly. @300hp, you're realistically looking at the following:

-Injectors
-EMS/some kind of custom tune
-Charge tubing
-Couplers & T-bolts
-Optional Intercooler
-Oil feel and drain lines
-Oil drain fitting... generally requires dropping the oil pan and having the fitting TIG welded in. + oil pan gasket
-Turbo
-Exhaust
-Optional external wastegate
-BOV
-Clutch
-Headstuds or different headbolts
-Optional headgasket
-Gauges
-Turbo manifold
-Exhaust
-Wideband o2 sensor, controller, and gauge

And I'm probably forgetting stuff. Attach prices to those items and it can be a real shock.

[JCarp90]

I can put together a very basic system for less than the kit costs, but honestly kit pricing isn't bad. When you add in the cost of all the connectors, shipping, parts that don't fit correctly, etc, it gets expensive very quickly. @300hp, you're realistically looking at the following:

-Injectors
-EMS/some kind of custom tune
-Charge tubing
-Couplers & T-bolts
-Optional Intercooler
-Oil feel and drain lines
-Oil drain fitting... generally requires dropping the oil pan and having the fitting TIG welded in. + oil pan gasket
-Turbo
-Exhaust
-Optional external wastegate
-BOV
-Clutch
-Headstuds or different headbolts
-Optional headgasket
-Gauges
-Turbo manifold
-Exhaust
-Wideband o2 sensor, controller, and gauge

And I'm probably forgetting stuff. Attach prices to those items and it can be a real shock.

-Fuel Pump
-RRFPR

Couple more things.