180 --- found it, bought it - thank you.

wish me luck, this car fixinup is new stuff for me
but I sure am gettin a kick out of it

 

this Bra Bomb better work!


DITTO!

 

so glade you guys are back i have a stock o4 na looking to get 300 to 350 horse power out of it please tell me you can help

 

Then you need to get on the list for the BEGI turbo kit ......

 

Just found one on ebay. The seller warned me I might need to "program it with my vehicle." Should I be concerned? It's the exact part number everyone is saying is the right one. Is the seller just being cautious?

 

Just a guess but he may be referring to the maf which doesn't apply to you because you should be using your stock maf with the bigger tb housing

 

He said I need MBSTAR diagnostic system to program it...if it needs programming at all. It's the correct part number and it's from a Mercedes car. I think it's just a paranoid seller covering his bases but now I'm sharing his paranoia thinking I just wasted $200 on a part that might not work or worse.

Can someone put my mind at ease?

 

Nothing to worry about. Unbolt the 68mm and bolt on the 74mm with a new O ring gasket, put it all back together, do a throttle rest and ENJOY !!!!!
( I got mine from a recycler [ junk yard ] for $50 and it worked just fine ..... )

 

Plug and play, no worries. $200 is a bit too much though, $125 to $150 max.

 

Thank you all so much. $200 was a lot but local salvage yards were no help and I got impatient. If anyone's still interested I'll post how everything went. Im contemplating buying a needswings intake too so I only have to mess with it once.

 

Install went great. The only actual problem I had was getting that plastic ring around the MAF to lock again....I ended up using channel locks.

If I were smart (big if) I would have done the TB and intake at the same time. Oh well.

Regards from Maryland

'05 Limited Coupe - Auto
74mm TB
K&N filters
K&N stickers
Custom interior (fuzzy dice)

 

Trying to find a TB and MAF kit as well on E-bay. Let me know if anyone finds one, thx!

 

you will find that carguts ( Blacksburg, SC ) has 19 of them ( A 113 141 0125 ) on the Car-Part.com--Used Auto Parts Market site for $85 each ....
( look under 2003 Mercedes SL class, then 220 Type, S430, S500 & S55 , then sort by price.
They will be on page 7 )

The one I got from them was like brand new, with just a tiny bit of dust/dirt on it

You could also call them ( nice folks, BTW ) and ask about the MAF housing, or just do like most everyone else has and get a Needswings CAI.

Don't forget to get a new O-ring gasket.

On Memorial Day - Semper Fi

 

Thanks so much for the info!!! As far as a Needswings CAI....cant bring myself to spend that much on a simple CAI (not saying its not nice or worth it to some)

 

I can dig it. I got mine from a fellow in San Diego that had sold his car.

 

Does anyone have data on HP gains for the TB, CAI, and tune on an N/A? I've heard a lot of claims that seem way out of whack to me...

 

I have never seen any dyno runs, or even comparable 1/4 mile times OFFICIALLY DOCUMENTED on here.

I can say mine feels maybe 20-25 hp stronger, and my MPG was not effected, if anything a wee bit better.
( that's with :
1. NW single CAI
2. 74mm TB
3. EuroCharged tune.
4. Larger cone K&N filter )

 

Eurocharged advertises a 24hp increase with the tune alone. So I would think it's reasonable to presume maybe 30-35 total HP gain with the 74mm TB and CAI? I've heard a lot of inflated claims that they're pulling close to 270hp with your same mods. I don't see where they're getting the power from.

 

Well, it IS possible if the rumor I have heard is indeed true :
Wikipedia says :
SL 320 with a M112 3.2 L 18-valve SOHC V6 (224 PS (165 kW; 221 hp) at 5600 rpm
( that's 6 more hp than the Crossfire's 215, I believe the SL320 had the 74mm TB )
But I have also heard that the true HP of a stock N/A Crossfire is around 240.
I have never seen any facts to back that up, however if true, then my mods might well place it in the 260-270 HP range.

I'm just too frugal ( mrmiata's word for cheap ) to drive 100 miles one way to find a dyno and know for sure.

 

Too frugal for long tube header too... but turbo is on the to do list.. Just a matter of where you feel your money is best spent I guess..