Thought I would post this page from the Schrick catalog that I got from Turner Motorsports. As usual this product for the Crossfire (Mercedes) M112 engine is more than twice the cost of other cars. Catalog price of $950 each side, Turner sells for $850 each and I can get a few sets of them for $700 each with my NASA racers discount.

 

HDDP what kind of power increase would this provide and how crazy is the labor for install? Lastly do you run the risk of the dealer finding out.

Thanks.

 

Only 7-10 hp. Install should cost you about $400 by a good MB mechanic. And no, the dealer should never figure it out (don't hold me to that one)... Hell they don't even know what the cam shafts of the Crossfire look like, or even know how to replace them...

 

I wonder if they're even worth the effort, since no one can actually tune the XF ECU to really take advantage of the air flow.
You might be better off buying your own ecu and starting there, learn how to use the software and play with the computer. Next you should get your self a data logger, so you can monitor all the engines sensor outputs. This would be the first thing on my list before I start dropping money on cams.

And since you like to run that weird rocket fuel in your car, I would suggest this route first.

 

Agreed. Data logger & piggyback FMU... Got any ideas or product recommendations ?

PS: Nothing weird about the "Rocket Fuel", I run Sunoco 100 octane race gas and 20% Propylene Oxide. It gives me 7 - 10 more hp. Guaranteed. Of course it melts plastic and rubber and is carcinogenic and illegal for use with most sanctioning bodies... But it equates to $4.70 per added HP... LOL.

 

Try this one: http://www.innovatemotorsports.com/products/dl_32.php

I'm not wealthy enough yet to afford such expensive toys, so I can’t recommend anything. I would try doing a search for a group forum that uses and is very familiar with the use of data loggers.
You need to record the engine timing, barometer, engine temp, air temp, axle speed, voltage, lateral G and forward aft G, fuel/air, rpm, fuel injector timing, and some other stuff I forget...

Also gonna need a 5 wire wideband oxygen sensor, unless the XF is already equipt with one?

Since your not street legal I would forget the piggy back computer, and get a fully dedicated system, that way it will be easier to interface with the logger and adjust the mapping cells for peak performance. I think the piggyback might even slow down data transfer during a quick millisecond adjustment at high rpm, I think it's only gonna get in the way of progress.

Have fun re-wiring your car! You'll know your making more power when that g meter is peaking higher and higher after every remapping, just try and keep a nice flat plateau on the G graph during acceleration.

 

jesus 7 hp from cams that cost $1,500 plus. that's embarrassing. this has to be the most useless car to mod ever. for that price on most cars you are looking at an absolute minimum of 20 hp, and on many cars up to 50 hp. horrible man. and why are you worried about tuning, maybe eek out 1 more hp?

 

You won't get an argument from me !

 

Here is the leaders in fuel injection ecu's, though you might have to take out a loan to buy one. http://www.efitechnology.com/
Also another good datalogger is Racepack.

I think your entering the area of high dollar/hp, time to start saving up for new parts.
EFI technologies probably has less expensive introductory systems and will allow you to add other feature later on down the road when you can afford it. now all you need to do is buy the srt blower and get the EFI system.
I believe they also have a forum dedicated to EFI technologies software.

 

Thanks for the info. I have to consider classing modification points for NASA. I'm at +32 of +39 allowable for the TTD class. If I go over +39, I will end-up in TTC running against much higher HP cars. Cams will only add +4 points to my up-classing, putting me at +36. I'm not interested in SC or TC for the car, it's a waste of money and would put me in a class of cars that the Crossfire would have no way of competing against.

 

Sorry to bring this up from the dust. HDDP did you ever buy this mod? Can you update us on results from the cams and maybe a dyno?

Thanks.

p.s. $1,400 for 7 hp still better than the cheapest startech kit $3,320 for 15 hp!!!

startech prices https://www.crossfireforum.org/forum...tech+group+buy

 

SO HDDP have you managed to install the Schricks cams yet?

 

I have them in my garage, but if I install them now I will be reclassed from TTD to TTC for this season. I'm going to wait until the end of the season to do it because I'm currently in 2nd place in TTD. http://nasa-tt.com/Socal_Standings And I want to make the nationals in September.

 

Maybe you can sell them to me? Who wants to race those monsters anyways right? I always thought if I raced a lot I would want my car to go pushing the limit at its class. And if I desired a different class I would simply get add another car to the garage.

 

Are you saying they will tear your motor apart and measure the actual lift of the cams? I bet you can get away with them and no one would be the wiser.

 

Yeah, I could probably get away with many additional mods on this car and the tech guys wouldn't know the difference, but I would... I didn't even use my crazy +7 hp Propylene Oxide fuel mix during the last event at Cal Speedway... I used Sunoco 91 octane pump gas from the track vendor.

I'll see how I do this season as is... It's more about the driver at this point, not the Crossfire... I'm classed pretty fairly with the other TTD cars... We're all hitting the same speeds +/- 5 mph on the straights... It's all about finesse' and fearless attacks in the turns at this point...

 

good to hear the car is able to hold its own. what cars are you going up against?

 

best of luck.

but still can't wait to hear your impression of the cams next season...

 

http://www.nasaproracing.com/rules/Time-Trial-Rules.pdf

The answer to your question starts on page 11 of the rules... Look at all the cars in TTE (which is the stock, non-modified Crossfire) And TTB for the (non-modified SRT6) All performance modifications add points that force you to up-class. With my modifications I am running against all cars listed in TTD, in addition to TTE cars with major mods that bumped them up a class...

 

Sorry to bring up this old thread but I was wanting to pull up the specs on the Schrick cams and the attachment is no longer working.

Can you please post again?