Sorry if I was misunderstood. I didn’t imply that you were arguing.
I already have intake spacers. I want to go further by splitting the intake and increasing the internal volume. Maybe also install meth nozzles at the bottom of the intake for cooling and cleaning purposes.
The volume might be neat. Runner length wise I would caution against. Mathematically you don’t want to make it any longer. Audi made the intake runners close to the max length for tq but still able to feed the demand of the motor above 5 000 RPM. I can try to find the runner testing I did on the s4 and what audi sport showed with there 4.0 dtm car.
Id your looking for some more hp check the air box. Lots of power by making a front feed tube to the lower part of the box and sealing off the fender ports.
I’m going to be honest with you. Even if your true love is to tinker (it’s understandable) I think your should hold off until you exhaust the proven path for performance.
Tune
Full exhaust
IM spacers
Maybe LWCP
LWFW a clutch
These are all proven, meth is an experiment that others have tried and nothing spectacular has come from it. Just a JHM tune with a little higher octane will perform better.
I have so much to learn about my car… keep up the discussion, interesting stuff!
no one has proven that meth helps with the carbon yet either, I toyed with that idea as well but there is no proven results that meth can keep the valves clean.
what has been proven is that with the spacers and the jhm 93 tune and a 10w60 oil the carbon accumulates considerably slower.
^^ This. Or just go straight up supercharger and be done with it!
Is that why 10w60 is sold by JHM? How does the 10w60 suit the Ontarian extremes of temperature?
Meth would be nice…
when I talked to jhm about carbon and something that they had in the works to combat it they told me that they had something in testing that they weren’t sure they would even release. dru then told that they had carbon cleaned a car did the tune spacers and the thicker oil ran the car for 15k (assuming that’s miles) and pulled the intake and it showed very little build up.
the thicker oil helps prevent blow by.
BTW I went with the liquimoly and I still burn it. I have now switched to Castrol 1060 just because its more avaialable and the numbers are pretty much the same.
I think the synthetic oil molecules being 6 times smaller than normal oil will always slip past a bit and im a rev junkie, my car sees more abuse than most.
so long story short I run 1060 spacers and tune because of jhm and there testing.
my car doesnt see winter. but I would be comfortable with the 10w60 in winter because the first number is still 10 which means its light when cold.
RS4 + snow = fun and safe transport!
agreed but after replacing all the lower moldings and the whole drivers side rear door and having someone slide into me last winter ill drive something I care less about. on the plus side audi covered 70 percent of the cost to replace everything.
winter is so hard on a vehicle, the wear and tear alone is enough to justify the cost of a second vehicle. especially here in the salt belt.
that being said the rs4 is the best thing ive ever driven in snow.
This is so true. Mine even did well in the snow with…wait for it…summer tires. Not by choice. Colorado gets super freaky spring snow storms.
Jhm developed the carbonator. The carbon terminator. 4 years ago.
It was another injector that sprayed on the valves, like what Toyota does now I believe.
It worked very well. Not sure why they didn’t pursue it. I would assumr
A) tough to manage fuel distribution
B) expensive
C) potentially dangerous
So, not sure. The media blast means you can do a whole car carbon clean in 3 hrs including manifold removal and reinstall so that’s promising.
I’m actually looking forward to pulling my intake to see what has built up in the last 7000 km. I’ll be sure to post pics.
It’s not worth worrying about.
I set the stock record 1/4 mile time at 12.75@108.36 at Cayuga in 2011. My car was 3 years old, had 55,000 km on it (33,000 miles) , and had never been carbon cleaned.
I had it done in 2012 at around 65,000 kms (40,000 miles) and it made very little difference to performance. After cleaning I was still never able to beat my Carboned up stock record.
In late 2013, I had my exhaust installed, and in april 2014 with around 95,000 kms (58,000 miles) went 12.51@110.53 mph at Cayuga. That was about 30,000 kms (18,500 miles) of carbon buildup.
Both of the times I ran are records for their level of modifications. Both were run with plenty of carbon buildup.
My main worry with carbon is the highly unlikely, irrational and yet to happen (to my knowledge) but theoretically possible possibility of carbon flying off the intake and causing damage. I imagine it would need a lot of miles to do that
I find the worry to be the piece that falls in the combustion chamber and ends up scoring the cyl wall.
hey bangoman, I hear u got yourself a vac leak. did u get it sorted? I hear your et was a 13 something. those vac leaks really hurt our cars eh.
Yeah I got a bunch of stuff to check! Sorry I didn’t get to meet you but such is #v8life lol
no worries bro, next time. I had a kid free weekend so the wife and I got into the sauce a bit and I didn’t even get up till 4 lol. my clutch slip was weird im still not sure exactly wtf happened. I didn’t make it back today either I forgot I had plans so im thinking this Friday ill go again.