Originally Posted by O5C4R

Hey AJW45 best post yet, quick question when you loaded the tune did you have to put the battery on a slow charge or not, going to tune mine soon but cannot be arsed with the battery charge, got away with it before and hopefully this car too, thanks in advance

Originally Posted by O5C4R

Hey AJW45 best post yet, quick question when you loaded the tune did you have to put the battery on a slow charge or not, going to tune mine soon but cannot be arsed with the battery charge, got away with it before and hopefully this car too, thanks in advance

Originally Posted by ajw45

Thanks and no, didn't hook up the car to a charger, the Cobb is pretty sweet and didn't take that long.

Originally Posted by ajw45

Agreed. As a customer of both Deman Motorsports and Dundon Motorsports I propose folks consider that no sides need to be taken here and the existence of different perspectives doesn't mean the one must be wrong.

Rick and his team at Deman Motorsport have taken care of my GT4 since it rolled out of the showroom and working with them has been consistently excellent. I was around for the installation and dyno testing of the headers and can assure the skeptics that there was no funny business and no intentional manipulation of the dyno results which were posted. Hanging around the shop it's clear Rick is a busy guy doing great work so to imagine him spending his time messing with the dyno just to start a flame war on RL is silly.

The DMS headers look amazingly well constructed, sound ridiculous (no drone!), and show power gains that are at least competitive with other catless headers. On my car the torque curve is actually pretty close to the DMS posted dynos below 5500rpm but we didn't match their peak numbers. That said, we also did not replicate the fan set-up and heat shielding that DMS showed in their dyno pics. So, different dynos, different cooling set-ups, different cars, and, no surprise, different results. Given all the transparency and insights they've provided, it seems unlikely that DMS would present anything to the community if they didn't see those results on their own dyno and stand behind them.

On another note, just loading the Cobb stage 0 to the car with headers showed a 5hp peak gain then moving to stage 2 added another 5hp peak before things started getting hot and the car started pulling timing. Tune definitely seems worth it with headers.

I can't wait till someone dynos a Deman x51 4.0 with DMS headers.... the trolls will really be stumped then

Originally Posted by ajw45

Agreed. As a customer of both Deman Motorsports and Dundon Motorsports I propose folks consider that no sides need to be taken here and the existence of different perspectives doesn't mean the one must be wrong.

Rick and his team at Deman Motorsport have taken care of my GT4 since it rolled out of the showroom and working with them has been consistently excellent. I was around for the installation and dyno testing of the headers and can assure the skeptics that there was no funny business and no intentional manipulation of the dyno results which were posted. Hanging around the shop it's clear Rick is a busy guy doing great work so to imagine him spending his time messing with the dyno just to start a flame war on RL is silly.

The DMS headers look amazingly well constructed, sound ridiculous (no drone!), and show power gains that are at least competitive with other catless headers. On my car the torque curve is actually pretty close to the DMS posted dynos below 5500rpm but we didn't match their peak numbers. That said, we also did not replicate the fan set-up and heat shielding that DMS showed in their dyno pics. So, different dynos, different cooling set-ups, different cars, and, no surprise, different results. Given all the transparency and insights they've provided, it seems unlikely that DMS would present anything to the community if they didn't see those results on their own dyno and stand behind them.

On another note, just loading the Cobb stage 0 to the car with headers showed a 5hp peak gain then moving to stage 2 added another 5hp peak before things started getting hot and the car started pulling timing. Tune definitely seems worth it with headers.

I can't wait till someone dynos a Deman x51 4.0 with DMS headers.... the trolls will really be stumped then

Originally Posted by RealityGT

Where is the pre/post dyno sheet? Is this tuned for 98 octane?

Originally Posted by Rick DeMan

DeMan Motorsport has a stock GT4 with no mods and we are going to install the Porsche Motorsport factory CAT Delete "cats" that were made for the GT4 Clubsport series. They are identical to the factory cats with the exception they are "hollow" without catalyst.

This should be a very good representation of how much Power is available by just removing the restriction from the system.

Stay tuned.