JM head results

[Daniel Cragin/DC Performance Inc]

We have done quite a few of the new JM head casting swaps. 100hp at the wheels with our tune is the average on the 96-99 cars. If we centerline the cam another 20-30hp is seen. Stock SC motors pick up another 100hp. These heads will make well over 610hp (rw) with a good cam.

 

[ViperJoe]

What does "centerline" the cam mean and how does it add additional hp?

Thanks

 

[Joseph Dell]

For the N/A cars, the question that is always nagging me is about whether the heads maintain the same combustion chamber size or whether they go smaller. Put another way, there are a lot of variables w/ a head swap.

In this case, is the compression ratio staying the same?

nice numbers!

JD

 

[SUN RA KAT]

Have you found any problems with tuning using the VEC2 or is an AEM system needed?

 

[FE 065]

Looks like DC needs to incorporate those heads onto the 2008 Viper.

There was an old coot at the strip today with a 2007 Z06 who looked like he'd be lucky to find the cigarette lighter..but none the less was running almost 125mph on OE tires.

"I've gone 11.9 today, but I don't know what I'm doing" he said after he ambled over to take a look at my 1999 GTS.


..Meanwhile the rest of us will have to wait for the price on the JM heads to settle down a bit before we opt for heads that cost as much as a Roe.

 

[GTSnake]

Looks like DC needs to incorporate those heads onto the 2008 Viper.

That will never happen.

 

[SSSSE YA]

Looks like DC needs to incorporate those heads onto the 2008 Viper.

That will never happen.

Never Say Never