rivcal4life

This thread will serve as my own personal running mod thread to document the mods I have completed since I got the car, and still have yet to complete.

As a few of you know, I recently bought a bergwerks N2O kit. I had a little trouble with installation. Some of it on my end (dead fuel pump, blown FPR) and some of it on the BW end (outdated parts in the instructions not revised for the parts included in kit). I would say mine was the most problematic of any BW kit install, and would venture to say most people wouldn't have to worry about running into the problems I did. If you are thinking of purchasing a kit, I absolutely highly recommend doing so. I am completely satisfied with my purchase.

Anyhow, with my dead fuel pump, I was not able to hold sufficient fuel pressure to close the HOBBS swith (ensures the A/F does not lean out by disengaging N2O should fuel pressure drop). On the plus side, it gave me an excuse to upgrade to a high pressure, 255LPH Walbro pump good for up to 650hp. With replacment Bosch pumps at around $150+core for a rebuilt unit, and the Walbro at $115 shipped brand new with all the correct fittings, it was a no-brainer.

After popping that puppy in, it was time for the 100hp test. Wow, definitely noticable, but it did not feel like the 30% increase in power I had been looking for. Steve of bergwerks told me that my new fuel pump was likely running the car too rich and suggested rejetting my nitrous bypass nozzle to drop fuel pressure.

Yeah, right.

Instead, I opted to bump up the nitrous jet itself to 125hp. Holy crap! The car is seriously a monster now. Flooring the car from 40 will send the rear end out with a fair sized white cloud behind the car. 80-100 come in a blink, 0-60 is nothing. I was so enthusiastically high on speed that I killed my first bottle in just a few hours. Steve says with this fuel pump, I should be able to get somewhere near 160-170 shot safely with a buffer zone before things start breaking. I will dyno the car again and get AFR readings before I do that. For now, look out for my time slips after the next track day on the 18th.

Videos and (finally) pics of my car will be up once the internet gets switched on at my new house Tuesday.

1995E320Cab

Thanks for the update, keep them coming !

I would love to meet up some time and take a ride in your car !

RHW

Subscribin early to this future legendary thread.

rivcal4life

Sure thing man! I'm just sorry you couldn't join in and make the group buy.

I don't know if it's worth it to you, but if you make it down on the 18th to fontana, you can race your own car, and get a ride in mine. There should be a pretty good turn out for once. Myself, 400eric, my buddy in his c36, another buddy in his e420, kyle in his 500e, and a couple maybe's: szvook and jano.

ronmiller609

Awesome. Thanks for living my NO2 dream.

jason3977

I have been running nOs on my 92 500e since I got it! I went from 100 shot to 150 and now I am at 175! My car has 189k on it! The only thing is the tranny. I keep going thru them! Get yourself a AEM wide band for air fuel ratios. Good luck

1995E320Cab

What system are you running and how many miles are your trannys lasting ?

AMGDave

Jason, wow, a 175 shot? Do you have the aftermarket fuel pumps? If you don't have the RPM switch (like the BergWerks kit) that disables the NOS during upshifts, that might be the cause for the transmission failures. BW cuts the NOS just prior to shifting to reduce the tranny load. But, if you install a tranny that is rebuilt to SL600 specs, including the extra clutch pack, it should survive even the NOS-boosted shifts.

Justin - very cool project you have going there - can't wait to hear official results from the dragstrip & dyno!

rivcal4life

My car parked next to Steve's (SZVOOK) at the drag strip on Sept. 18th.





I will not be running those Carlssons in the rear next time, I was just waiting on some proper race tires.

Don't mind the fuel line and Fuel Pressure Gauge (wrapped in a rag), they will be removed soon. Note the RDMTEK Camber Plates. THANKS AGAIN JOEF!



Nitrous Solenoids:



I finally have a decent internet connection at home (ditched AT&T) so the pictures will flow!

rivcal4life

A few videos of my dyno pulls without nitrous. I am returning this weekend to run on the bottle. Videos will be up next week.

http://www.youtube.com/watch?v=IbXoQLtM4ks

http://www.youtube.com/watch?v=7qhnc6qFRKM

http://www.youtube.com/watch?v=StMYxxNTTAs

http://www.youtube.com/watch?v=mVYuvHWrr-8

And here the video of my best run to date. Too bad I was pitted against a Supercharged Viper putting 660 TQ to the wheels. He made me look slow!

http://www.youtube.com/watch?v=IshuMxj7nqw

Saijin_Naib

Love it dude, even though you sniped those shock towers from me :P

Can you mount the camera on the rear deck facing forward next time? Or have it so we can see out the front/side glass?

rivcal4life

Yeah, next time I race a car faster than me! Ok I'll get one for you either way.

Saijin_Naib

What kind of mount do you use? They make giant suction cup mounts with threaded receivers for regular cameras.

I've seen some inventive placement at my SCCA meets. One Lancer owner put it on the front air splitter right above the ground. The footage was awesome

I'd say on the roof just behind the sunroof and aimed slightly down would yield a nice wide Field of View and might get the right lane as well as your car.

rivcal4life

I use a mount called the delkin fat gecko mini. The track will not allow mounting the camera on the exterior of the car, for obvious reasons. I'm surprised they let people run them at AutoX events. I have done it on the street though without issue. Perhaps I can do another if I find someone to race me.

rivcal4life

Dyno results! Stock VS. Nitrous.



Best HP: 348.44
Best TQ: 424.81

Not to brag, but there were some C63 guys there, and I was putting out nearly 75 more TQ.

rivcal4life

The ups and downs on the dyno can be attributed to the fact that I was not running high octane fuel. The knock sensors were pulling timing, which robbed a lot of power.

All in all, I am pretty happy with the power. Also, I am not sure I am comfortable adding another 25 hp of N2O with my AFRs nearing 13/1. I will refrain from bumping it to 150, for now!

CLK 2 GLK

Nice runs, looked like Fontana. If any of you Socal guys need a good merc mechanic my uncles been doing it for 30+ years and he works out of his house on the weekends. He has all the specialty tools too if you guys need to use.

Jake

rivcal4life

Yes sir, that is Fontana. Can you make it out next weekend? There's another open drag day.

Thanks for the offer also!

Saijin_Naib

So those are the numbers -20%ish through drivetrain loss right?

Holy ***** sir.

CLK 2 GLK

I was gonna go that weekend with my buddies to race our cars (muscle cars) but nascar Talladega is on sunday

rivcal4life

Turns out they cancelled the Oct. 30th day due to rain. However, they did add another day to compensate.

So we are looking at Nov. 20th, and then another 2 weeks later on Dec. 4th. Anyone care to attend?

kostas86

Looks like you're having some fun, nice vids!

rivcal4life

We were rained out again on the 20th! The next day is this coming Saturday, December 4th, 2010. Forecasts show temps in the 40^F range with a 0% chance of rain! Hopefully we can get another w124 guy or two to attend!

AMGDave

Be careful with those low ambient temps... while they're good for power production, they're also bad for traction (mostly at the launch). Make sure you have your tire pressure set correctly and if it's really that cold, do an extended burnout to get as much heat in the rubber as possible...

rivcal4life

Temperatures ended up being in the 60's, but I still had problems hooking. Maybe I should have done a longer burnout.

Oh well, check the left lane for my new best time: