Are fuel controllers allowed in BSP?

[magicsammy]

I was looking at new 550cc injectors (which I'm pretty sure are allowed) and they say that they recommend that you get a fuel controller to go with the injector upgrade.

Is this allowed in Street Prepared? I didn't see any mention of fuel controllers specifically in the rules.

thanks

[MNbiker]

Originally posted by magicsammy

I was looking at new 550cc injectors (which I'm pretty sure are allowed) and they say that they recommend that you get a fuel controller to go with the injector upgrade.

Is this allowed in Street Prepared? I didn't see any mention of fuel controllers specifically in the rules.

thanks

Steve,

Yes fuel controllers are allowed, as is alternate timing control. However, you can't use any piggyback that even has the capability for boost/wastegate control.

I do question why you'd want to go with larger injectors (I assume the 550's are larger than stock?). Since you can't legally increase boost levels for BSP, I can't imagine the value of larger injectors, unless Mitsu totally screwed up and spec'ed undersized injectors for the car. If anything, you car's probably running too rich already - in which case the larger injectors will DECREASE your power levels). A fuel controller would help you lean out the mixture, where appropriate to gain power.

Are you coming to the LoL event on Saturday? If so, lets spend some time talking about legal mods and tuning for SP.

-Steve

[magicsammy]

yeah, I'll be there - just doing a little investigation on upping the HP

[MNbiker]

Originally posted by magicsammy
yeah, I'll be there - just doing a little investigation on upping the HP

Good - Lets talk then.

FWIW - here's the basic formula for turbo car power additions in SP. This does NOT match the typical upgrade path used by tuners, as the SP rules banning any changes to boost levels force you to take a somewhat different approach.

The basics
1. exhaust (turbo-back w/high-flow cats)

2. intake

3. fuel controller (S-AFC II or similar) and some good wideband O2 tuning

4. pulleys

5. intercooler

Serious Stuff - probably for a dedicated competition car only

6. tune for 100 octane unleaded fuel

7. water injection

8. remove all catalytic converters

9. tune for leaded race fuel

Note - if you decide to go Street Mod, things change rather dramtically. Since SM lets you freely change turbos, boost levels, etc. - you can take a more "typical" approach to power upgrades.

-Steve

p.s. I did a little research, and can't see any reason why you'd want to upgrade to 550cc injectors, unless you're planning to up the boost & move to SM.

[StevenMosley]

Also something to consider. If you do mods like exhaust, intake, intercooler, and gutted cats. You will really be raising the boost of your car. It is legal for this to happen as long as you don't adjust/change the factory boost controls. That being said if you have a factory bcd it is to my knowledge that this can't be removed or modified in SP. My MR2 will peg boost cut all of the time with these mods and go into limp mode, so I have to run a boost controller to run less boost then the stock boost controller will allow or change the bcd.

Turbo cars take some homework and can be very rewarding, or expensive.

[MNbiker]

Originally posted by StevenMosley
Also something to consider. If you do mods like exhaust, intake, intercooler, and gutted cats. You will really be raising the boost of your car. It is legal for this to happen as long as you don't adjust/change the factory boost controls. That being said if you have a factory bcd it is to my knowledge that this can't be removed or modified in SP. My MR2 will peg boost cut all of the time with these mods and go into limp mode, so I have to run a boost controller to run less boost then the stock boost controller will allow or change the bcd.

Turbo cars take some homework and can be very rewarding, or expensive.



Methods of boost/wastegate control vary widely between cars. In the case of my WRX, any extra boost you manage to gain through exhaust upgrades is fair game. The only gotcha is that boost spikes can cause the car's ECU to retard timing and/or dump fuel to avoid detonation, which is why proper tuning is very important.

As Steven states, MR2 Turbo's react a bit differently. It would definitely be worth finding a good 3000GT tuning expert to bounce ideas off of, in tuning for SP.

-Steve

[Dfish]

I don't know alot about the classes, but you could always buy a fuel controller and o2 sensor and see how your running, I doubt you need the bigger injectors unless you up the boost, but I don't know the 3000gt to well. I'm running 650cc injectors with a bigger fuel pump and the apexi s-afcII for my gsx with a 16g turbo. I would highly reccomend the apexi s-afcII, I'll be their on saturday if you would like to take a look at it (the red eclipse gsx that psssch alot:D).

david