m113 intake manifold question

[liquidusculade]

ok, some background... im working on designing out a twin turbo system for my clk55. i would like to have the intake pipe come straight up from the intercooler and into the intake manifold, however the throttle body is currently facing the rear of the car.

does anyone know if the intake manifold can be just turned around? i know this would affect some vacuum lines attached but those will be rerouted due to the turbo anyhow. looking at some pictures i think it is capable of just being turned around. i guess if no one knows for sure then the best way would be to just unbolt it and see if it will bolt up in the opposite direction.

is there any other issues other than just fitting the intake manifold in the opposite direction? will this affect engine operation? from everything i know about the engine, i think it will be ok. obviously the injectors will have to stay in their same cylinders, and as far as i know the flappers in the intake all operate at the same time.

now that i think about it, i think the egr line will need to be re routed but i will be using custom exhaust manifolds anyhow. anyways, some advice and brainpower are definitely welcome

[Sticky]

Have you ever done any turbo work before?

[liquidusculade]

nope, which is why im trying to plan this out as much as possible and get as much advice as i can. ive been doing a bunch of research over the past 6 months.

[liquidusculade]

i am not trying to make this a 1000 hp car that i take to the strip... im just trying to make this an even more powerful and fun car to drive and to also compete with my friends a bit who do have upgraded turbocharged cars. i could go the supercharger route... but the systems for mercedes are so expensive and they barely add much power. i have most of this planned out with the turbo size, fuel system and stuff, but i am currently trying to figure out where to fit everything and a few other loose ends.

[Sticky]

nope, which is why im trying to plan this out as much as possible and get as much advice as i can. ive been doing a bunch of research over the past 6 months.

I think you are likely going to need help from a shop with experience.

[liquidusculade]

maybe. i have a couple friends who have turbocharged their american muscle cars to help me out. part of the problem is no one wants to touch a mercedes. but i like being unique.

[Jimefam]

maybe. i have a couple friends who have turbocharged their american muscle cars to help me out. part of the problem is no one wants to touch a mercedes. but i like being unique.

As long as you having someone who can tune for the changes your making the hardware part usually is easy. I say go for it, I'm gonna do the same when someone gets the ability to custom tune my N63. Btw the manifold may be reversible I know on some domestic V8's this can be done(they route the TB backwards to receive the charge from the IC which in drag cars is mounted in the back) but on some others it can't so you'll probably just have to try it.

[Sticky]

maybe. i have a couple friends who have turbocharged their american muscle cars to help me out. part of the problem is no one wants to touch a mercedes. but i like being unique.

I like you are trying to be different. The main obstacle will be the tuning, who will do that?

[liquidusculade]

i would prefer to do the tuning myself, however i do not have all the required materials to tune the stock ecu and i dont think they are available for a decent price. my plan b is to use a piggyback system. ive been eyeballing the F/IC-8 by AEM. Then my other option would be to pay someone to do a mail order tune or to tow my car to somewhere that does tuning, but i live in GA and those are hard to find.

It looks like im going to get the piggy back system and do it myself to save money. That and i dont trust too many people with my cars, especially when they will be making or breaking my new toy.

[Sticky]

i would prefer to do the tuning myself, however i do not have all the required materials to tune the stock ecu and i dont think they are available for a decent price. my plan b is to use a piggyback system. ive been eyeballing the F/IC-8 by AEM. Then my other option would be to pay someone to do a mail order tune or to tow my car to somewhere that does tuning, but i live in GA and those are hard to find.

It looks like im going to get the piggy back system and do it myself to save money. That and i dont trust too many people with my cars, especially when they will be making or breaking my new toy.

This is going to be a hell of a project and I wish you luck. Not going to be easy.

[liquidusculade]

haha thanks. which is why im trying to cover all my bases before i tear into this thing.

[liquidusculade]

i figured i would check back in here and let anyone who is curious in the future, the intake manifold would not be easily turned around. the cylinder heads are different for each side, along with other accessories that tie into the manifold, so i scratched that idea and will just have the intake do a 180 to get into the throttle body.

currently i have removed the fan clutch, installed an electric fan, removed the entire stock fuel system and installed a bosch 044 pump with an aeromotive fuel filter and fpr. the fuel rail has been modified by cutting off the stock inlet which was way to small and welding on a -8 AN bung. also, some more information, the fuel rail appears to be stainless steel, not aluminum like i originally thought and attempted to weld lol. the car is currently back up and running, but i for some reason i cant get the fpr to adjust any lower than 60 psi which it should go down to 40. i know the stock pressure is 55 psi, so its not too bad for now, but not ideal. anyone ever ran into this issue?

next i will be changing the pcv system, and fabricating up the intercooler system.

[Sticky]

i figured i would check back in here and let anyone who is curious in the future, the intake manifold would not be easily turned around. the cylinder heads are different for each side, along with other accessories that tie into the manifold, so i scratched that idea and will just have the intake do a 180 to get into the throttle body.

currently i have removed the fan clutch, installed an electric fan, removed the entire stock fuel system and installed a bosch 044 pump with an aeromotive fuel filter and fpr. the fuel rail has been modified by cutting off the stock inlet which was way to small and welding on a -8 AN bung. also, some more information, the fuel rail appears to be stainless steel, not aluminum like i originally thought and attempted to weld lol. the car is currently back up and running, but i for some reason i cant get the fpr to adjust any lower than 60 psi which it should go down to 40. i know the stock pressure is 55 psi, so its not too bad for now, but not ideal. anyone ever ran into this issue?

next i will be changing the pcv system, and fabricating up the intercooler system.

Could we get pictures of what you have done so far and the progress?

[liquidusculade]

i already have my new catch cans and stuff for the pcv system. once i finish that i will post up pics of everything so far. im also dealing with this fpr issue

[DBFIU]

Good luck and show us pictures of progress. Do you have any experience tuning engines in general?

[liquidusculade]

yes, ive been learning from my friend. he has a twin turbo camaro that is built to be a drag car, but he does all his own turning. unfortunately the information for European cars is not as available as american cars.

[Sticky]

Yeo, unfortunately the Europeams are pretty complicated.

[liquidusculade]

figured out the fpr issue. its actually a problem in the tank. the fpr is attempting to send fuel to the tank to lower pressure but there is a restriction. i attempted to find this restriction today. i knew that my -6 AN return line was enough flow, because thats the outlet of the regulator.

there is a strainer on the return to the tank for some reason, so i removed it, but it didnt help the reduce pressure at all. the only thing left that i can see causing a flow restriction would be the ventrui nozzle that the return line flows through in order to create a suction at the bottom of both saddlebag tanks which fills the surge tank inside the gas tank. the surge tank is where the fuel pump takes its suction.

currently i have the regulator set for 58 psi which is lowest steady number i can achieve which is pretty close to my stock 55 psi. fortunately i do not plan to run much boost so the increase in fuel pressure should be about 10psi which the regulator can handle. if anyone has any information on larger sized venturi's im all ears lol. also i will start a new thread to talk about my turbo progress from here on out.

[Sticky]

also i will start a new thread to talk about my turbo progress from here on out.

Yes, please do.

[Sammy-hagar]

I know this is an old post, but did it work? Can you flip it around?

ok, some background... im working on designing out a twin turbo system for my clk55. i would like to have the intake pipe come straight up from the intercooler and into the intake manifold, however the throttle body is currently facing the rear of the car.

does anyone know if the intake manifold can be just turned around? i know this would affect some vacuum lines attached but those will be rerouted due to the turbo anyhow. looking at some pictures i think it is capable of just being turned around. i guess if no one knows for sure then the best way would be to just unbolt it and see if it will bolt up in the opposite direction.

is there any other issues other than just fitting the intake manifold in the opposite direction? will this affect engine operation? from everything i know about the engine, i think it will be ok. obviously the injectors will have to stay in their same cylinders, and as far as i know the flappers in the intake all operate at the same time.

now that i think about it, i think the egr line will need to be re routed but i will be using custom exhaust manifolds anyhow. anyways, some advice and brainpower are definitely welcome