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-   -   W123 na manifold on 82 300sd (faster bottom acceleration/ adding IC) (https://mercedesforum.com/forum/diesel-performance-49/w123-na-manifold-82-300sd-faster-bottom-acceleration-adding-ic-50734/)

The Dude 02-27-2012 02:35 PM


Originally Posted by ForcedInduction (Post 156312)
HA! That child doesn't know what hes doing. Read the STD and peachparts forums and you'll see hes nothing more than a pathetic troll. He didn't even know he was actually using an HY35. And notice it still doesn't spool up until 3000rpm at full throttle.

lol I thought he tried both because half his youtube vids are hx, half hy. what a rube.


Originally Posted by ForcedInduction (Post 156312)
still doesn't spool up until 3000rpm at full throttle

Im counting on it. My purposes are drifting, show, and outrunning Daly city fuzz back into my san francisco county. Im not running 0-60s, but 60s -xxx at 100% throttle. THese cars are too heavy for 0-60 with tiny engines, acceleration is a dead loss, im hoping the long runner intake will help.


Originally Posted by ForcedInduction (Post 156312)
He won because the VW left the line late. Also, 10.5 second 1/8th mile is pretty slow given his modifications. For comparison, my 300D does an 11 second 1/8th with a turned-up non-turbo injection pump and 40mm turbo.

He was using an hx40 which is definitely too big, an hx35 would do better with adequate fueling, correct?



Originally Posted by ForcedInduction (Post 156312)
If you don't want somebody to talk about certain things, its best not to mention those things in the first place. Otherwise anything/everything in a post is fair game for anyone, not just me.

Dont underestimate my appreciation for your posts, im naturally blunt, i was just honing you in on the topics i need answered most. Your past posts with the ~banned next to them have made my ride what it is today.



Originally Posted by ForcedInduction (Post 156312)
must use a 1/16" or 1.5mm orifice to reduce feed pressure below 70psi. Otherwise oil will bypass the shaft seals and the shaft won't be stable under load.

I get the preceding fitting references, but please elaborate on this part, im no mechanic like yourself.

I see now, (from that hx40 burnout video you were dissing as turbo617 about making his car slower) how he got it to clear the n/a manifold, he put a clamp on 4" exhaust coupling in the middle of the turbo to push the tall part forward. I have the option of doing this on the hx35 i ordered, any potential issues?

The Dude 02-28-2012 11:34 PM

I read on yet another forum that he hydrolocked his engine with an even lower than mine cold water intake, in a suburban environment though, an extreme punishment for experimentation.


Originally Posted by ForcedInduction (Post 156340)
Huh? The turbine housing is held to the bearing housing with a v-band clamp.

THats exactly the terminology i was looking for, it looks like in the vid below that he used a v-clamp 4" exhaust coupling added between the turbine and bearing housings. It might just work with propper support. cant see it till the last few seconds, and hard to make out his exact rig.

Mercedes 300D holseth hx40g - YouTube


Thanks for the oil line restrictor info, where would you recomend online to order the pieces i cant get at my hardware store?

Just to get a better idea of the housings scale, if an hx40 is 16-18, and the hx35 i ordered is for sure 12 on my paperwork, how big is my ai garrett t3's?

According to my tach and boost gauge, the garrett starts spooling around 1500- 1800 rpm, full boost at 10psi by about 2200-2500; are you saying the hx35 wont start, mid, or finish at 3000rpm?

Also im getting a barage of faster spooling tactics from the nissan forums, like building back pressure, wrapping the exhaust, etc. Any specific ones for diesel i should know about?

The Dude 03-03-2012 12:04 AM

The new hx35 also wont clear the n/a manifold, do you have an old short runner to sell me forced, or any ideas on things i can do to make a turbo clear the w123 one? I contacted the guy with the modified short runner one Dieselboy740 with the hydrolocked engine, last i heard in january he still had it.

Thanks for the very informative thread on oil line fitting/ pressure reducers btw, will definately help as i start ordering. I also dont really have a wrapping fever, just looking for anything to make the holset spool just a little sooner.

The Dude 03-04-2012 03:52 AM

cool
 
okay, so the adapter/ spacer is out of the picture, cause even the stock turbo only gets another 2" before it hits some metal line right next to the fender, the hx35 would currently be about half inch clearance from that line as well, my only option would be to drop the turbo ~2".

Your angle idea is perfect in this regard, but will anyone who welds professionally touch a high heat exhaust manifold at the risk of their reputation? I can easily grab another exhaust manifold at pick and pull for < $40 and chop at it. for the 2" extension down, can i use regular steel or do i need to find cast iron, or what material is the manifold made of anyways?

I followed your tutorial on turning up the full load today, 19mm and 9mm lock nuts. The middle one seemed to be a 14mm and i tightened it all the way with my fingers, tightened it all back up, replaced the pump side cover, will fill with fresh synthetic 1/2 quart tomorrow.

I took the oil filter housing off to get to it, dont have a new gasket though, and the old one looks pretty good still, just gonna use some rejuvinatiion goop on it, nothing that will chunk off into the housing though. Im like a child on christmas eve now, cant wait till church is over tomorrow,


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