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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Fri, Jan-24-2020, 02:21:45 PM   #41
DrftKingIII
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Default Re: State of bolt-on mods entering 2020?

One of my favorite mods I've done to my M3 was the Riot Racing Throttle Body. It gave a slight bump in the "butt dyno" but coupled with the CNC throttle cable bushings it really made the throttle response much more crisp and enjoyable.

That said, it has given me nothing but trouble since day one. Never ending TPS codes, sending it there and back on numerous occasions trying to get it right, and many lost hours trying to fine tune the throttle plate to not stick but also not throw a TPS code, it is literally impossible. It may be a good option for someone who doesn't care about the CEL or is going to tune out that code, but definitely not good for a plug and play scenario.

I will be dumping it in favor of a Dinan unit sooner than later.
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Old Fri, Jan-24-2020, 03:02:27 PM   #42
pbonsalb
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Default Re: State of bolt-on mods entering 2020?

Supposedly RR made some revisions to its BBTB to address those problems with early versions. Not sure which version you have. Years ago when I bought a BBTB, I was aware of the problems with RR and bought a used Dinan. No problems with it. I do have the machines bushing but don’t think the rubber bushing is what causes the problems with the RR. If I had to guess, it is too much of an overbore and exposes casting flaws that leak around the plate or it is a straight bore rather than a tapered bore.
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Old Fri, Jan-24-2020, 03:40:39 PM   #43
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Default Re: State of bolt-on mods entering 2020?

What other mods have you guys paired with the TB? ASC delete? MAF? M50? I've been trying to figure out how much benefit (if any) the TB would give by itself as I'm not looking to do an M50 swap at the moment and I'm on the fence about the ASC delete.
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Old Fri, Jan-24-2020, 06:09:50 PM   #44
DrftKingIII
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Default Re: State of bolt-on mods entering 2020?

Quote:
Originally Posted by pbonsalb View Post
Supposedly RR made some revisions to its BBTB to address those problems with early versions. Not sure which version you have. Years ago when I bought a BBTB, I was aware of the problems with RR and bought a used Dinan. No problems with it. I do have the machines bushing but don’t think the rubber bushing is what causes the problems with the RR. If I had to guess, it is too much of an overbore and exposes casting flaws that leak around the plate or it is a straight bore rather than a tapered bore.
It was sent back and returned along with one of the "revised" ones. Both had/have issues.

The CNC bushings are not the culprit of issues in any way, but added to making the throttle response a bit more crisp, IMO.

Quote:
Originally Posted by drtwofish View Post
What other mods have you guys paired with the TB? ASC delete? MAF? M50? I've been trying to figure out how much benefit (if any) the TB would give by itself as I'm not looking to do an M50 swap at the moment and I'm on the fence about the ASC delete.
I did the ASC delete as well, the system itself is so horrible that I wouldn't want it on and active anyway. I also did the M50 manifold. I didn't notice a drastic change in mid range power, but engine certainly feels less "choked" on top end now. I'm not sure you'd really need a bigger MAF unless you're starting to add more down the road. Your best bet is TB, ASC delete, Intake, cat-back. The MAF/Injectors are really only necessary with cams, at which point you'll need a tune, etc etc.
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Discussing State of bolt-on mods entering 2020? in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)