I am glad you put up these videos, I have a 1976 3.0si with a bad engine and someone local to me was selling an s38, so i got the idea to do something similar to you, except I will keep the fuel injection and it is a 3.5 liter. So thank you for starting me on a time and money consuming project.=)
@kimgulle RUBBISH, paper filters are designed to be oversized and pass more filtered air than the engine needs at full RPM. Aftermarket filters have a much smaller surface area, so need hge holes to pass the same amount of air. You get less power with aftermarket filters because they degrade very fast, become blocked and starve the engine of air. A paper filter is 13times as big in surface area so lasts a year or two.
Why damage the engine and possibly turbo by allowing dirt and dust in!
@alxcsb Not really. Most race cars do not run air filters. We change oil more often, like before and after a race, or a few hundred miles. Its the dirty oil that wears out the engine and the air filter is supposed to lengthen the life of the oil but since we change the oil more often, no need to run air filter. Besides you get better flow and cool noise without the filters. Whatever gets sucked in to the engine gets spit out the exhaust anyway.
@AccordGTR IDIOT! You know nothing about car engines, gasflow or filtration. What do you think happens when idiot boy racers use an oiled cotton filter with a turbo? Because the surface area is so small it needs big holes to pass as much air as an oversized paper filter.That allows dirt in to cause pitting and scoring. Show me a car in which the engine oil is in direct contact with incoming air in order to clean it!
You muppet, air filters clean air - NOT oil. Go away and learn about enignes!
@urbex2007 I didn't say the oil filters the incoming air, idiot. Oils primary function is lubrication, but it also cools and cleans the engine. Did you even graduate from high school? Nevertheless, whether you use an air filter or not, the air/fuel mixture does seep past the cylinder walls and valve guides to contaminate the oil, more if you do not use a filter and more if you run richer mixtures. But since racing we change more oil, it is generally best not to run an air filter.
I have got a very good hint for you to keeping the nice old Sports Engine in good shape with todays ultra dry eco fuels: Use 1:100 API TC two stroke oil / fuel mix as regular driving fuel, that keeps the old fuel-system gaskets, rubber parts, alloy parts etc... and cast iron metal surfaces of those vintage engines in excellent shape...and it also lubricates the valves and upper piston regions. Most Mercedes vintage owners in Germany do so :) Also keeps carbs and EFi injectors clean as new!
@ottsi I doubt it's leaning out on top end, it's running fatter and the added torque is evidence in my opinion, did you have a way to measure exhaust gases? I'd bet the longer stacks are containing more of the fuel stand-off. I like the sound, did you try jetting changes along with the tube length?
@ottsi makes sense - long stacks more low-end torque, short stacks more top-end power. Long stacks nice for slalom and tight twisty circuits. Short stacks good for high speed circuits and drag racing.
@ottsi shouldn't the car start to run richer if it's making 10 less bhp up top with longer velocity stacks? Less power needs less fuel. And you don't happen to have the dyno sheets do you?
Sponsored by Home Depot .More savings. More doing. :p
recheveste31 4 days ago
The trumpets of the apocalypse, I like brutal friend a heap hehehehe, Good lock
molliarti 2 weeks ago in playlist Favorite videos
Hello ottsi, thanks for the 2800 3.8 m5 vidéo...
Where can I find intake manifold to fit x 3 weber's 50 on M5 E34 3.6l engine that I would like to fit on old E09 3.0 csl?
Many thanks for your help about
nismofairladyz1 1 month ago
Where you get those staks made,or where you get them?
Orlando3Tc 3 months ago
Is that PVC pipe?
racedriver52 3 months ago
is it real life?
fabsdesign 6 months ago
is it e21?
Devilek1986 6 months ago
what do the stacks lhook up to?
psedlen 6 months ago
looks like PVC pipes lol. Sounds amazing though
kazeboy1 7 months ago
I am glad you put up these videos, I have a 1976 3.0si with a bad engine and someone local to me was selling an s38, so i got the idea to do something similar to you, except I will keep the fuel injection and it is a 3.5 liter. So thank you for starting me on a time and money consuming project.=)
Nihilus56 7 months ago
I'm not a mechanic in anyway, but isn't running an engine without an airfilter going to ruin it?
alxcsb 10 months ago
@alxcsb
When I use the car I have piper cross airfilters :D
ottsi 10 months ago 8
@ottsi
Where I can find inlet manifold to fit x3 weber's 50 on M5 E34 3.6L engine?
Is a personnal inlet manifold?Do you sella manifold kit ?
I don't know if it is the same way that the s38b38 is ?
Thanks for your info about
nismofairladyz1 4 weeks ago
@alxcsb Only if you drive in a dusty environment. Some people prefer to drive without filters in order to prevent that the airflow gets disturbed.
kimgulle 10 months ago
@kimgulle RUBBISH, paper filters are designed to be oversized and pass more filtered air than the engine needs at full RPM. Aftermarket filters have a much smaller surface area, so need hge holes to pass the same amount of air. You get less power with aftermarket filters because they degrade very fast, become blocked and starve the engine of air. A paper filter is 13times as big in surface area so lasts a year or two.
Why damage the engine and possibly turbo by allowing dirt and dust in!
urbex2007 4 months ago
@urbex2007 Yeah you're right. I have no idea what i was saying. xD
The only reason you would have no filters is because of the sound. :)
kimgulle 4 months ago
@alxcsb Not really. Most race cars do not run air filters. We change oil more often, like before and after a race, or a few hundred miles. Its the dirty oil that wears out the engine and the air filter is supposed to lengthen the life of the oil but since we change the oil more often, no need to run air filter. Besides you get better flow and cool noise without the filters. Whatever gets sucked in to the engine gets spit out the exhaust anyway.
AccordGTR 6 months ago
@AccordGTR IDIOT! You know nothing about car engines, gasflow or filtration. What do you think happens when idiot boy racers use an oiled cotton filter with a turbo? Because the surface area is so small it needs big holes to pass as much air as an oversized paper filter.That allows dirt in to cause pitting and scoring. Show me a car in which the engine oil is in direct contact with incoming air in order to clean it!
You muppet, air filters clean air - NOT oil. Go away and learn about enignes!
urbex2007 4 months ago
@urbex2007 I didn't say the oil filters the incoming air, idiot. Oils primary function is lubrication, but it also cools and cleans the engine. Did you even graduate from high school? Nevertheless, whether you use an air filter or not, the air/fuel mixture does seep past the cylinder walls and valve guides to contaminate the oil, more if you do not use a filter and more if you run richer mixtures. But since racing we change more oil, it is generally best not to run an air filter.
AccordGTR 4 months ago
@alxcsb yes of course
Mr12345609876 4 months ago
setup looks cheap as fuck. looks like plastic tubes lol. sounds good tho.
integraballa97 1 year ago
sounds like ferrari XD
paulius360 1 year ago
This has been flagged as spam show
use 1% two stroke oil in your fuel to prevent fuel system corrosion with todays ultra dry eco fuel (E10)
Pnoerre 1 year ago
you run without air filter?
dpalienko 1 year ago
Looks like something from a plummer. Sounds great tho!
kregzdeM3 1 year ago
This has been flagged as spam show
I have got a very good hint for you to keeping the nice old Sports Engine in good shape with todays ultra dry eco fuels: Use 1:100 API TC two stroke oil / fuel mix as regular driving fuel, that keeps the old fuel-system gaskets, rubber parts, alloy parts etc... and cast iron metal surfaces of those vintage engines in excellent shape...and it also lubricates the valves and upper piston regions. Most Mercedes vintage owners in Germany do so :) Also keeps carbs and EFi injectors clean as new!
Pnoerre 1 year ago
big bad sound!!!
9mdma 1 year ago
Fy faan va fräscht...... (gråt)
Va e det för förgasare? Weber 50?
Lurvas90 2 years ago
Really cool stuff!
How many HP do you expect from this setup?
Please keep posting videos :)
kkoni88 2 years ago
I will take the car to the dyno on saturday actúally, I'll put a video on that on the tube. with the numbers! :D
But I will test with short stacks, if possible with long also.
Regards
Otto
ottsi 2 years ago
@ottsi Hrmm. No dyno. Not good results?
Nettikturbo 1 year ago
@Nettikturbo
25Nm more max torque with the long velocity stacks, but leaning out at top end and about 10 hp less hp at the top. 450Nm and 361hp.
426Nm and 371hp with short velocity stacks
/Otto
ottsi 1 year ago 10
@ottsi I doubt it's leaning out on top end, it's running fatter and the added torque is evidence in my opinion, did you have a way to measure exhaust gases? I'd bet the longer stacks are containing more of the fuel stand-off. I like the sound, did you try jetting changes along with the tube length?
505197 1 year ago
@ottsi makes sense - long stacks more low-end torque, short stacks more top-end power. Long stacks nice for slalom and tight twisty circuits. Short stacks good for high speed circuits and drag racing.
AccordGTR 6 months ago
@ottsi shouldn't the car start to run richer if it's making 10 less bhp up top with longer velocity stacks? Less power needs less fuel. And you don't happen to have the dyno sheets do you?
Thanks.
thundercoupe9 1 month ago
Oh wow...beautiful noise.
STL30 2 years ago