Did you get any check engine light after blocking off the egr.
The boost gauge hook up looks simple now, thanks for your help.
What kind of car do you have and what year is it?

 

Actually i dont think that is the EGR, judging from the fact boost goes into that valve. I think most likely that is an air injection pump valve in which part of the supercharged air gets pumped into the header to help the catalytic converter work properly. That explains why some ppl have dynoed their car lean below 4K rpm. But in reality it is not.

 

were can i get a realy good boost gauge from ? for my c230k

 

When I hook up a boost/vac gauge where you said I was just getting a 20 onthe vac side and not boost. So I decided to try and hook it up after the EGR selonoid and I was getting a boost reading? Is this right. My boost looked like its around 15psi max. I only went around the block twice to make sure I was getting aboost reading. I need to install it permantly and then I will know exactly what my boost is.

 

It is normal for a boost gauge to show whatever the intake manifold pressure sees. Vacuum in idling is also normal. Vacuum reading is ideal when cruising for economy. Lower vacuum = better mileage.

 

I hooked it up the way you said to. So now I get vacuum and boost. Thanks for the help.

 

What the tube dimension u used for boost gauge??

 

If you buy a Brand name guage you just use their tee and the vacuum line. If you dont want to cut any factory vacuum lines there is a better place to hook up the gauge. Look between the super charger and the Air intake tube. Disconect the plastic tube for the airbox, its easier to see. All you are doing in following the line, that was circled in red (prior post), to the front of the car. You will see that there is already a 3 way vacuum split. Go to the store and buy a 4 way split. If you dont use the guage all the time or are using it to see how much power each mod gives you or are afraid of warranty issue you just put a cap on the the forth tee.

 

daer puggun sir,
is there is the split you mentioned near at fig.3??
I want to check the difference boost between Kleemann kit and stock pulley.
Or u can tell me what psi of stock pulley and Kleemann pully??
Would u please show where the spilt is???
Thx a lot ~~~

 

Where the yellow circle is, is where the factory tee is. Stock 11.2 psi Kleemann 13psi but up to 16psi max. Speed and aerodynamics play a part. Past 60mph and yuor boost just increases. Yes you can feel a huge difference with the Kleemann boost kit.

 

sorry , I cant find the tube you said.
would you please identify to me , please~~~
I saw the cabin I/O at passenger side but how does the gauge tub layout in cabin??

 

 

Grab a flash light and look deep up under the dash, where the steering wheel is, the fire wall. You should see a black plug. Carfully remove it, its tricky to get out. Use a needle nose plyers. You will need this plug to size it for a new plug that has a hole in it. This is to protect the tube/vacuum line from the bare metal hole that you just unplugged. From the engine view it should be just under the brake booster. You cant see it from the engine compartment though. You will be able to see the vacuum line once you run it from the inside of the car out to the engine. Basicly after that just snake the vacuum line around the engine compartment according to where it fits best. I have my vacuum line ran to my ash tray, currently it is plugged off, but everytime I add a new mod I can easly hook up the gauge. Not to many fit in the ashtray with the cover closed. Pepboys sells one, not the best but I can hide it in there it doesnt get in the way of my driving. Some guy on another forum is making a 2 pillar guage pod for our cars, if you are interested. If you run it to the ashtray you dont have to drill or brake anything to run the line there. Just remove the ash try, there is a thread on this forum, on console removal read that first, and then slip the line between the the carpet and ashtray holder frame. Dont forget to buy a plug in case you dont finish the job right away. You dont want an open vacuum line.

 

thanks your instruction.
but I need u to identify me where the 3 way vacuum split is???
I didnt find it after disconect the plastic tube for the airbox







http://www.flickr.com/photos/70717556@N00/?saved=1

 

It should be somewhere in the yellow cirlce. Thats where mine was. If you still cant find it then you should remove the merceds engine cover. It just pops up, use some force on the four coners and it will come off. Follow the original vacuum line that was circled in red, follow it towards the front of the car. Thats the same line that is teed off at the yellow circle. Other wise try the tee that leds to the washer fluid resovour. If you already have the boost gauge try hooking it up to one of the lines and see what you get. Its better to cut a tee by the yellow area then under the engine cover because the vacuum line under the cover fits nicely and you dont mant to mess around with it.

 

Tell me about it! With the temp's at around 20 degree's the boost is pretty high right now. Plus I just changed my fuel filter, I think it was ristricting flow. It made a difference. Thanks for the info, what kind of gage are you using?

 

I know I am loving the cold weather right now. My car just takes off like a bat outa hell and keeps going like a bat outa hell. I was laughing when I read your comment about the SprintBooster and your son. I love that feeling. I guess its different when you are driving becausee you are prepared for the take off.
Currrently I removed my boost gauge. I had to bring it in for some warranty work. I didnt want to deal with them saying anything about my warranty, escpecially since I purchased a 100k mile warranty. Do you want your gauge hidden in the ashtray. If not some guy in the other forum is making a dual pillar guage for our cars. The problem with the ashtray setting is that I know of only one that fits with the ashtray door closed. Its a cheapy one from Pepboys. It does the job as to letting me know what my boost gains are. I was going to permantly install the autometer gauge sports comp II. It lights up just like our stock gauge lights. http://egauges.com/vdo_ind.asp?Type=...II&PN=ATM-3607
The only problem was that the ashtray door wouldnt shut. Even with the ashtray totally removed it wouldnt shut. I even bought the black sheet of plastic to make a holder for the gauge and then permantly install in the ashtray. I wound up returning the guage and I still have the Pepboy gauge which I can just hook up and can still hide it in the ashtray for the day since it isnt permantly installed.
I read you might want to port your throttle body ported. I thought about it but decided not to. Ive been told you will lose some boost. Although it wont be much but i think we lost enogh with the Kleemann header & high flow cat set up. Although with the sprint booster and our Kleemann setups our cars are very quick. My 0-60 has improved alot, while my gas milage wasnt really effected, just dont know the numbers yet. Do you know we lost 1/2psi. Corey explained that to me. Any way I am a 0-60 guy so the t/b is your choice. If I was you I would ask your son first,lol.

 

I'm trying to find the gauge that I found on the Porsche sight. It was a LED bar that you could mount from the back of any flat surface. You just removed the front facr plate, and drilled holes in the same pattern as the gauge and mounted it from the back. Some install's looked really clean and the gauge was pretty accurate to. I will do some more searching. I'm doing research on rear video and a new I-pod kit from Dietz right now. And have Sunman coming for install next month. Not much going on. LOL

 

Oh ok, you are going to install an electrical gauge and not a mechanical one, right?

 

Yes, I found a DIY for an Audi that put the row of lights accross the steering column. Cool spot but I'm not sure about the look, after looking I could'nt find a clear flat spot to install the one I was thinking about. It was just a row of LED's that went from green, yellow, then red. DIY for Audi http://www.audiworld.com/tech/elec42.shtml

 

Wow that was some job. That is actually very nice. I wouldnt even think of tackling that job. What gauge where you talking about that would sit flat on the dash (if we have the spot for it)? Ive come across plenty of gauges when I was doing mine. I know if seen nice looking led ones but I was doing a mechanical gauge so I just skipped by them. There were some really nice looking once out there, ie.. square, rectangle and circle ones.

 

There was one that was in a rectangular case with a straight row of rectangular LED lights across it. All you had to do is pull the front off and do the same thing as the Audi post. It was a little harder to make the holes because the all had to be filed to fit. But if you did it correctly it was pretty clean. The LED's where a little closer together on it to so it took up very little space. Still searching for the Porsche post, I think its like five years old.

 

Pugguy2001 sir,

I want to find out the 3 way vacuum split??
It's the split circled that u mentioned??





http://www.flickr.com/photos/70717556@N00/?saved=1

 

I believe so. When I follow the split it looks like it is the vacuum line under the engine cover. Before you peramtnly do anything you should hook up the gauge. If you are using a vac/boost guage you gauge should read a vaccum reading and then you are connected to the right line.

 

I had finished my boost gauge.
Thank you,pugguy2001 sir~~~~
what your max. reading is???