I got this photo from Richard@DynoComp. What do you guys think?

It replaces the silocone rubber elbow from Vadim that did not fit properly and caused too much air turbulence.

 

I have to ask? Is the "stock" TB a known limiter to our performance? How much more air will this flow and if so, does it affect the SC? The reason I ask is that you're highly modded and I just can't see another TB making a substantial difference on a otherwise unmodded car or even lightly modded car.

This stems back to my days of motorcycles where a bigger Keihin or Mikuni was NOT always better and often resulted in worse performance on an otherwise lightly modded bike. Now , with MOST (but not all) bikes being fuel injected, this is becoming irrelevant.

I always thought on the C32 the real limiter to ultimate performance was the injectors (you can ask Jake about this one) and the ability of the SC to handle more than about 22 psi of boost without "overboosting" . I've talked to Cory at Kleemann and even the Kleemann SC will overboost and can only handle about 10-12. Thus, allowing more "air" into the SC will not make a difference. Although with your mods, anything is possible.

 

The stock TB is only 74mm so as you increase boost/air flow, it becomes a limitation just as the E55s are experiencing when they put bigger pullies on it.

The 82mm TB kit for the E55Ks have had dramatic impacts on power and ET/Traps but the inlet on those kits from Renntech and other major tuners are not as aerodynamic and sophisticated as this piece that you are seeing here.

 

Is this something that will be made available for the Kleemann SC and also the C32??? If so, who's producing it and what other mods are need to make the install? Cost?? I'm game for both the Kleemann and the C32 IF it works?

 

Yes this piece is from DynoComp so most likley they will come out with a complete 82mm TB kit with this inlet that mates up with Kleeman SCs or the C32 OEM SC. They should sell a ton of these kits to all the former Kleemann SC'd guys if the kit cost is under $1K.

 

This is a 1 off piece. Robets car had the throttle body inlet on the supercharger hacked off and a plate welded on. Their was a silicone tube connecting the throttle body to the MAF sensor. That does not work for a number of reasons. Richard worked directly with our fabricator to make this part. This is simply a part to connect the throttle body to the MAF sensor. This was only made because the silicone tube was not working with the size of the MAF in relation to the size of the throttle body. Its a 1 off piece. Its all about doing things the right way.

I don't know a whole lot about what is going on with Robert's car. Dyno-Comp and its techs do. I will say this. If you have ever seen a silicone tube under vacuum it collapses. Not sure what was going on in Robert's case (as Im out of the loop on his car). However that could have been an issue.

 

 

Resurrecting an old thread, but need a little help on my clk55-k.

I have a clk55 with p/p heads, cams, blower w/smaller pulley (7.5psi boost), klee exhaust, tune.

I'm pegging my MASS AIR METER in this cool weather... I've tried 3 diff mass air meters and all peg out @ 5.05 volts under full load. AFR seems OK on wideband, but from what I've read going over 4.85volts is a no-no as ECU can do funky thinks out of the MAS range and go lean/boom.

A couple questions:
1. Some people are simply installing a larger custom aluminum mass air pipe with a bung and bolting in the stock bosch mas sensor to trick the mass and not peg it. Will this work?

2. Another source tells me to keep trying MAS meters until I find one that does not go over 4.85 volts @ full load...... saying all 3 meters are bad because they peg out.
I have access to two new MAS meters later this week which I'll test to see if they peg out as well.

3. I did modify my plastic TB elbow by removing the vanes on the inside and polishing the edges smooth..... could removing the vanes in that elbow actually cause turbulance in the mass air meter ahead of it and contribute to my pegging issues? The crossfire guys who swap in 55 n/a motors are cutting these vanes out for alleged performance (flow).

4. I'm measuring my mas voltage with pos to mas sig wire, and neg to chassis ground. Is this correct OR will it make a diff if I measure neg to the actual MAS meter ground wire in the MAS loom? Does it make a diff?

5. Finally.... my DAS system is showing lower part load range adaptation values of 1.21 /1.21 (on each side) which ind lean at lower part throttle. All other load ranges, idle, upper part throttle and mid/high revs are FINE.... as verifyed by star and real-time AFR.... is the lower part throttle adaptation a function of the MAS meter being bad? Or something else? Thx guys.

Alot of questions.... and loads of tuning fun. I want to resolve these issue BEFORE going to the track and hurting something.