[sable_owner]

Hello, this is my first official post and I know this question has probably been covered a thousand times but here it goes.... What mods (if any) can be done to the Vulcan for added perfomance under the hood? Is there an intake (like from a Ranger) that can be swapped and get more hp? Interchanges with larger throttlebody. I already know about the silencer but I'm looking for more power than that. No, I do not want a power adder (supercharger, turbo charger or nitrous). Has ther been any head swapping to find more power in these Vulcans? Has anybody tried to adjust timing and how did you do that? Thanks in advance,
Mark

 

[silvapain]

Some basics:

No one makes an aftermarket intake. Most people here build their own custom one. You can put in a lager TB from a mustang. The timing is controlled by the ECU, you need a chip to adjust it. I have never heard of anyone putting in aftermarket heads, but it could be done. things I would suggest:
1. New injectors. The stock vulcan injectors are 14 lb/hr. they can barely support 150Hp.
2. A new chip to use the new injectors. Plus it will firm up the shifts and adjust the timing.
3. A phenolic spacer. will keep the intake air cooler, and reduce the chances for detonation (a problem with the vulcans).
4. build some sort of high-flowing custom CAI (cold air intake). will help the engine breath alot better.

There are others, but those are a good starting point.

 

[sable_owner]

Thanks, guys. I guess I'm not really looking for an aftermarket head but alternate head choices. Are there any that flow better than others? I'm a 5.0 freak but I'd love to get some extra performance out of the 2000 Sable. I don't mind porting and doing other things. Is the spark controlled solely from the EEC and not from a crank sensor? Something has to tell the EEC where the engine is. Also what is the stock fuel pump output? Couldn't you just add a fuel pressure regulator and adjust the fuel pressure up a little or does the computer want to puke on you? I'm very limited on my knowledge of the Sable/Taurus family, but I have rebuilt suspensions and minor engine repair on a '88 bull.

 

[mikehawk]

If you kept the stock injectors from your 5.0 mustang, I think those are a direct swap for the vulcan (orange 19lb injectors, right?), and the pcm might be able to compensate for bigger injectors via the o2 sensors. Not positive on that one, though.

Port & polish is a good idea, but I've heard it only helps in high RPMs; I'm not speaking from experience, though.

Also, check into getting exhaust done. No kits available, but muffler shops can fab up anything. Either 2 1/2" single or 2 1/4" dual, mandrel bends recommended.

 

[silvapain]

The stock fuel pump is 60LPH. If you increase the pressure, you risk keeping the injectors from seating properly. There is a crank sensor, but the EEC actually adjusts the timing, depending on IAT, O2 sensor, you know the deal.

The stock injectors on a mustang are 19 lb.hr, but the ECU will NOT recognize the new sizes. They are hard-programmed into the lookup tables, and cannot be changed. I looked into just getting my stock ECU reflashed, and everyone I talked to said they could not do it.