S2 = 350hp

[shone190]

Hi everybody,

what is the best way to get 350HP from 3B engine?

RS2 setup, or something else?

Thank You all in advance.

Best regards!

[Rusty]

RS2 will certainly achieve that and pretty much bolt-on. There are other turbos that will do that with the rest of the RS2 parts but they might require some custom tuning.

[Jamo]

RS2 or K26/K27 turbo,
RS2 or Wagner manifold,
Injectors of your choice depending on what ecu map
ECU mapping and replacement MAP sensor,
Larger intercooler, RS2 or Wagner or home brew using large ebay IC
Replacement airbox 3B airbox is not up to the job either ABY or RS2 or cone filter

optional but in my opinion essential

Larger downpipe
Uprated exhaust
Uprated fuel pump or minimum direct wiring of fuel pump to battery with relay.
Change fuel filter
Silicone boost hoses
New clutch OEM or uprated, old clutch on uprated power level will perish in a short while.
Uprated front brakes

[shone190]

Thanks a lot for the precise response

[Jamo]

Also you may need to change the head gasket if it hasn't already been changed. The 3B came with a paper gasket, this was replaced on the ABY and RS2 with a metal gasket

[shone190]

Great info, thanks again

[UrS4boy]

Is nobody going make any suggestions/warnings about the 3B ignition system (distributor and single coil), e.g. the potential for spark hop using the wrong rotor, etc.?

[prj]

You need exactly this for safe 350hp:
1) Injectors, 360cc or bigger
2) RS2 Turbo
3) Better fuel pump (stock is usually tired)
4) RS2 or STR exhaust manifold
5) Coilpack conversion and AAN ecu.

That is all.
Everything else are "nice extras", but your car will make 350hp easily with just those mods and proper mapping.

[Jamo]

Why do you need coilpacks for 350 bhp? Plenty of UK 3B's running this power without the need for coilpacks, highest was Audiman at 480 bhp IIRC

[prj]

Why do you need coilpacks for 350 bhp? Plenty of UK 3B's running this power without the need for coilpacks, highest was Audiman at 480 bhp IIRC

Because it's not really safe...
Spark hop -> boom.

Coilpacks are 36 EUR each, a stock ECU can be had for a very marginal amount of money.
Pulling the engine apart will cost much more in case of bananas.

[Rocco]

Why do you need coilpacks for 350 bhp? Plenty of UK 3B's running this power without the need for coilpacks, highest was Audiman at 480 bhp IIRC

391cv / 644nm here on rebuilt 3B Distributor,but of course all ignition parts NEW (battery,spark plugs,spark plug wires,knock sensors ...rebuilt distributor..)

[Gompa]

I know of a 3b with around 400-450 plenty of mods but still has dizzy etc.

[prj]

You could probably run 500+ hp on it.
That's beside the point.

In the same manner I can say:
I know plenty of people who have bent rods on 3B on stock car with chip.

[UrS4boy]

You need exactly this for safe 350hp:
5) Coilpack conversion and AAN ecu.

Correct me *IF* I am wrong: On such a conversion to AAN ECU and coilpacks, you can use the 3B Hall sender for the G40 signal for the AAN ECU. (?)

I think that is true. I am pretty sure the Hall sender is the same as the early AAN Hall sender in a Tuna Can, i.e. Siemens HKZ101.

[Jamo]

Yes you can early AAN ran this configuration of dizzy and coilpacks, Bram was also running this on his engine with VEMS