How to tune a Supercharged Marauder

[03sport007]

Ok so I live in Portland, Or far away from any of the tuners that are recommended on this board. I've searched the mustang boards and can't find any recommendations there either. In the past when people have asked for tuner recommendations the response has always been make sure you get somebody who is familiar with our cars. Because tuning a heavy car is different then a mustang. So this week I plan on talking to some local tuners about tuning my car after my eaton swap. What should I ask them? What makes our heavy cars different?

[ntd]

If the shop your thinking of has experience with mustangs they should be able to tune the engine but the trans shift programing may be the most difficult aspect of the tune for them to nail down. If there are any mustang clubs or modified mustangs local to you ask for there recommendations.

[RacerX]

It's not that difficult really. You cold start with an 03/04 cobra terminator base tune and all the timing tables, fuel, etc. Are going to be damn close if you have 39lb injectors and 90mm maf. If you have the 80mm, you can pull that right up in sct's folders and add it.

[Dennis Reinhart]

I would call SCT and ask if there are any dealers in your area and talk to them this is not a difficult tune and a good tuner can dial in the transmission by starting with the base value file and adjusting from there.

[Siege]

The compression ratio being significantly lower in the Cobra engine plus the Marauder experiencing a higher load at lower RPM due to its weight is a recipe for engine destruction.

Don't let the tuner load the Terminator tune and send you out the door.

[Dennis Reinhart]

The compression ratio being significantly lower in the Cobra engine plus the Marauder experiencing a higher load at lower RPM due to its weight is a recipe for engine destruction.

Don't let the tuner load the Terminator tune and send you out the door.


He did not load the above mentioned file:confused::confused:

[03sport007]

Ok thanks. Running 39lb injectors and 90 MAF with maifia so hopefully shouldn't be to difficult. I'm currently running a aftermarket tune and love the shift schedule so if they leave that alone I should be all right.

[Siege]

He did not load the above mentioned file:confused::confused:

:confused:

He asked for advice for talking to local tuners after he completes his Eaton swap and I advised that if a tuner suggests loading a Terminator tune and calling it done that there will be problems.

[RacerX]

:confused:

He asked for advice for talking to local tuners after he completes his Eaton swap and I advised that if a tuner suggests loading a Terminator tune and calling it done that there will be problems.
Any tuner that does that should be fired. You would be suprised how close the tune is for an sc'd Trilogy Marauder though. Very close. Unless you can pull up the SCT 03/04 cobra tune, SCT SC'd Marauder tune, etc. you can't really have an idea of how close the timing is. ;)

[ctrlraven]

Find someone who knows how to tune a Lightning Truck.

[RacerX]

Allright, I just opened up my SCT PRP and they have a great SC tune for SC'd Marauders with 91 octane. Safe and actually pretty decent without much tweaking. Any authorized SCT dealer/tuner/Dyno will load that as a default and go from there.

[Siege]

Unless you can pull up the SCT 03/04 cobra tune, SCT SC'd Marauder tune, etc. you can't really have an idea of how close the timing is. ;)
I'm intrigued now. What is the max timing they run for the Cobra vs. S/C Marauder? I'd think the difference would be significant at 8.5:1 vs 10.1:1 depending on how close to optimal these tunes are.

[RacerX]

Stock supercharged tunes for both? 5 degrees difference. The key is in custom tuning each individual car.

[na svt]

The key is in custom tuning each individual car.
...and that goes for any car.

[LANDY]

I'm intrigued now. What is the max timing they run for the Cobra vs. S/C Marauder? I'd think the difference would be significant at 8.5:1 vs 10.1:1 depending on how close to optimal these tunes are. It all depends on how much boost your running. For example my car with 10.2.1 CR. Runs on 12 psi and 12* timing.

[napolitano]

I will post my dyno sheet next week. The best tune ever. Very conservative timing and probably the fastest stock block with the right driver. (Landy)

[Siege]

It all depends on how much boost your running. For example my car with 10.2.1 CR. Runs on 12 psi and 12* timing.
Well the base tune should work regardless of boost as long as the load cells are setup properly. More boost just pushes the tune into a higher load cell. This is ASSuming that the FRPS sees both boost and vacuum.

I still would have expected more than a 5 degree difference in timing between the two base tunes but as has been pointed out the base tunes are just a rough base to fine tune from there.

[RacerX]

This is ASSuming that the FRPS sees both boost and vacuum.
I've seen a few swaps where the FRPS was only seeing vacuum and not vacuum/boost. Makes it real fun to tune! Make sure those plugs are regapped for boost too! That's fun to tune when the darn spark is getting blown out. ;)