N52 performance cams

[justpete]

I should note that originally I requested dyno tuning by the same shop doing the work on my car but this was a couple of years ago before they realized I was serious(ly batz). And the reason given was that it was available for tracked racecars only which would mean all safeties are out the window. Believe it or not my car is still under warranty, well what's left of it anyway, so they wouldn't and won't do that. Yet.

[TheSt|G]

Originally Posted by 631twentyeighteye

My AA tune definitely has a limiter. I told him to make sure he hit it for my pulls

Yup, they are a safe and respectable tuner.

[andrey_gta]

I emailed WestCoastRiots.com
They say its possible with enough interest to try, but unknown result. Should we go for this? I dont see any other option that had reviews in the forums

We can develop a regrind cam for this engine if there is enough interest.
I would need to buy 1 set of core units to start the development.
Do you think that you could help gage interest? I would need 3-5 deposits of $100 each to start the development. The end cost would be similar to our current regrind cams.

We would grind as aggressive as safely possible on the factory BMW cam. I wouldn’t know the potential profile until I have a core set to measure and calculate off of.

Thanks,
Todd
Riot Racing
www.WestCoastRiots.com

[justpete]

Originally Posted by andrey_gta

I emailed WestCoastRiots.com
They say its possible with enough interest.

Cool! Thanks for checking with them. I need to talk with my shop about it. We were going to tear the engine down for a complete street/race rebuild so I need to know if regrind cams are worth it. OTOH, not a lot of other options out there at the moment. I wonder if they can get much more out of the engine without increasing lift and thus requiring custom pistons. Also looking to increase CR to 11.5:1.

What was the cost of the regrinds or did I miss that?

[andrey_gta]

Originally Posted by TheAxiom

Are you sure? The M50 manifold outflowed the E46 M54 manifold as well. We need flow numbers!

yeah I saw that crazy thread.
Assuming inlet size is the same, the m50 TB opening is smaller. Hense less flow. The m50 manifold won all this time because it has larger inlets than the other m5x manifolds

[andrey_gta]

Originally Posted by justpete

Cool! Thanks for checking with them.
...

What was the cost of the regrinds or did I miss that?

Their website has cost as this description:

Price for cams: $450.00
Core Charge: $450.00 (core charge applied at time of order. To avoid core charge call to provide credit card number or send us the cams from your engine)

[justpete]

Originally Posted by andrey_gta

Their website has cost as this description:

Sorry, didn't rtfm. Sounds just about free as such things go. This is sounding better all the time... Thanks!

[631twentyeighteye]

Interesting developments. Curious as to how regrinds can add power, despite not addling lift? Never have heard of anything like this coming from the motorcycle world.

edit: unless it's just longer/shorter duration and overlaps. that would make sense. But in that case wouldn't it just move power down low up top, or vice versa?

[justpete]

Originally Posted by andrey_gta

I emailed WestCoastRiots.com
They say its possible with enough interest to try, but unknown result. Should we go for this? I dont see any other option that had reviews in the forums

I'd be interested in what he'd have to say about simultaneously going to 11.5:1 CR with either custom pistons, skimming the head, or both. Pending a positive response from my shop I'm definitely in and if there isn't enough interest I'm in for the balance.

[Taskmaster]

Who told you that regrinds don't add lift?

[Taskmaster]

Riot Racing cams apparently added 15whp+ whp to a E36 M3.
The biggest problem I see is find a core/blank in order to get those cams.

[justpete]

Originally Posted by TheAxiom

Riot Racing cams apparently added 15whp+ whp to a E36 M3.
The biggest problem I see is find a core/blank in order to get those cams.

I'd just send them the ones out of my engine.

[andrey_gta]

The $100 development deposits buy the first cam set for RiotRacing

[Taskmaster]

Originally Posted by justpete

I'd just send them the ones out of my engine.

I can't do that, my car is my daily driver. Thanks for stepping up to the plate!

Originally Posted by andrey_gta

The $100 development deposits buy the first cam set for RiotRacing

I know, I'm thinking about just doing it. I think we should open the feeler to the whole forum - $450 is CHEAP for the type of gains we are talking about.

212whp to 235whp (with other mods) from Riots reginds:
http://www.bimmerforums.com/forum/sh...s-review/page6

Originally Posted by Froda420

Posting dyno graph for anybody interested. I'm really happy with how hard the car pulls up top, and my trip to the strip confirmed a big improvement. Even with crappy 60' times I shaved .4 seconds off the ET and picked up 4mph in trap speed! And that was with a slightly worse 60' too. Last time at the strip was before cams, injectors, intake and tune but with the M50 mani.

[631twentyeighteye]

Originally Posted by TheAxiom

Riot Racing cams apparently added 15whp+ whp to a E36 M3.
The biggest problem I see is find a core/blank in order to get those cams.

Junkyard n52's maybe?

250rwhp would be awesome. Cams definitely have my interest.

[Taskmaster]

Originally Posted by 631twentyeighteye

Junkyard n52's maybe?

250rwhp would be awesome. Cams definitely have my interest.

Could be beyond that honestly....

We would also need a custom tune afterward, but that's minor. Let me see what CarPart says.

[andrey_gta]

carpart junkers rarely take apart engines

[Taskmaster]

Originally Posted by andrey_gta

carpart junkers rarely take apart engines

Full heads are available.

[justpete]

Originally Posted by andrey_gta

The $100 development deposits buy the first cam set for RiotRacing

I'm in. Just heard from the shop, regrinds are gtg, he's setting up all the shops to do the engine rework, and he's attempting to track down some cams, should know something relatively soon.

[justpete]

[QUOTE=TheAxiom;16986977]I can't do that, my car is my daily driver. Thanks for stepping up to the plate!QUOTE]

No worries. One of the benefits of having work done at the dealership is a free loaner.

[Taskmaster]

Originally Posted by justpete

I'm in. Just heard from the shop, regrinds are gtg, he's setting up all the shops to do the engine rework, and he's attempting to track down some cams, should know something relatively soon.

Wow, I'm literally speechless. Where is @Emozoo with his pictures to relay my emotions?

[justpete]

Originally Posted by TheAxiom

Wow, I'm literally speechless. Where is @Emozoo with his pictures to relay my emotions?

The cool part is the shop being lined up to do the work is the one that has built all of Bimmerworld's engines, if I'm understanding the email correctly. I can hear my credit card cursing me already...