Large Plenum Intake

what baffles me, is that this modification has been ignored massively over the years of modifying these cars.
only on BIIIG projects has it been done and considered worth it.

but, i guess thats to do with the fact we've been hugely restricted in our options with only SEM, RMR, Dahlback inlets available, which eith the price of them is understandable that it hasnt been done.

the good thing about this plenum is the design is used hugely on various cars and aftermarket inlets. its simple, and proven. And much better than these plenums that are uniform in shape rather than the taper of this and the xcessive one.

another step for 1.8t/ko4 tuning..... tick
 
Prawn said:
Love it Dave.

Have you drilled / tapped your VAC ports into the back plate? what about the IAT sensor?

Does the bonnet shut Ok?
Click to expand...
tapped the vac ports, The AIT sensor is also tapped underneath the mani Along with the brake servo feed...
Loads of room for the bonnet, i can see the bottom of the engine too, so should be easier to get to the alternator/thermostat and crank sensor etc....;)
 
Looks good and sound to work well for you too, hope you have got it over the 300 mark now

Dave has seen my manifold up close and so he does have a idea on how the Excessive plenum sits in the S3 engine by
 
Yeah Andrew im on 315/321 LB/F after a bit of tinkering, still not what i wanted but plans are a foot....
This May push me into the late 320s though...Then i have my WMI kit to go on...
 
audi upgrades
Bill are you still going ahead with replicating tufftys inlet manifold? If so any update on price and time scales?
 
when I weld up the next one I will get it flow benched as I did on the SEM and Monstor007 before it.. compared to data with the RMR...
should be interesting data, and factual.
 
Dani_B19 said:
Bill are you still going ahead with replicating tufftys inlet manifold? If so any update on price and time scales?
Click to expand...

yes I am. but I am also busy as feck currently, so other work/cars comes first before I tinker on design and development.
 
smooth and paint one of daves and the differences are very minimal.
slight difference in plenum shape, that is all.

why flow bench when yours has already proven its worth on tufftys car?
just out of curiosity as to how it fairs with the big names?
 
Yeah someone make some sensibly priced inlets. IE, SEM etc pull your pants down over the price for theirs :( Even a pukka Jenvey ITB setup (for another engine) is cheaper!

superkarl said:
what baffles me, is that this modification has been ignored massively over the years of modifying these cars.
only on BIIIG projects has it been done and considered worth it.

but, i guess thats to do with the fact we've been hugely restricted in our options with only SEM, RMR, Dahlback inlets available, which eith the price of them is understandable that it hasnt been done.

the good thing about this plenum is the design is used hugely on various cars and aftermarket inlets. its simple, and proven. And much better than these plenums that are uniform in shape rather than the taper of this and the xcessive one.

another step for 1.8t/ko4 tuning..... tick
Click to expand...

The tapered design is known to be ideal for boosted setups with the throttle body on an end of the plenum, it's to help airflow to the "last" cylinder. A Graham Bell has written a pretty awesome, if a little old, book on Forced Induction. Well worth a read and covers aspects like this.

Forced Induction Performance Tuning A Practical Guide to Supercharging and Turbocharging: A. Bell: 9781859606919: Amazon.com: Books
 
Sam_ said:
Yeah someone make some sensibly priced inlets. IE, SEM etc pull your pants down over the price for theirs :( Even a pukka Jenvey ITB setup (for another engine) is cheaper!



The tapered design is known to be ideal for boosted setups with the throttle body on an end of the plenum, it's to help airflow to the "last" cylinder. A Graham Bell has written a pretty awesome, if a little old, book on Forced Induction. Well worth a read and covers aspects like this.

Forced Induction Performance Tuning A Practical Guide to Supercharging and Turbocharging: A. Bell: 9781859606919: Amazon.com: Books
Click to expand...


I think this is the same guy that said to hates WMI? been a long time since i read that book though.
 
  • Like
Reactions: scott6452
superkarl said:
smooth and paint one of daves and the differences are very minimal.
slight difference in plenum shape, that is all.
Click to expand...

Plasti dip it!!
icon_cheers.png
 
Westy said:
Nobody cares about looks except tuffty lol. It's all about performance for price for most ASNers.
Click to expand...

lmao @ westy

Quality counts for some ;)

ASN turning into TT forum now... Next it will have to be both cheap and shiney!
 
Last edited:
superkarl said:
smooth and paint one of daves and the differences are very minimal.
slight difference in plenum shape, that is all.

why flow bench when yours has already proven its worth on tufftys car?
just out of curiosity as to how it fairs with the big names?
Click to expand...

Given I deal in facts not fiction..... I have over the years had testing done on products I use and "choose to sell"
I have data on the others I had tested, so this one would be of interest to "me" in comparison.

this is not the only plenum I have here and I have tested another dual plenum design which is in process.... but may not reach fruition for 1.8t for other reasons, not performance related.

Flow bench is just supporting data. It will indicate how equal the cylinder flow balance is, which power runs alone will not tell you.

Plenum shape being key to this balanced flow.. We shall see.
 
ScottB5 said:
That has nothing to do with looks though.
Click to expand...

anyone care to show some actual hard data of its performance... ??
Looks alone, I dont like its plenum shape. End of.
If you like one, make one of them yourself.. and report back the results.
the other one Andrew linked too looks better to me aside from the throttle being canted over for 1.8t (I know its not specifically for vag)
 
Speak to Niki, I am sure if somebody sends him the inlet he will perform an independant review with dyno plots.

He will fit it to Ting Tongs car and rape the **** out of it.

Niki would probably make one if you sent him the bits.

Yes Dave, I just ordered loads of blue hoses to be just like you. It looks great :)
 
badger5 said:
anyone care to show some actual hard data of its performance... ??
Looks alone, I dont like its plenum shape. End of.
If you like one, make one of them yourself.. and report back the results.
the other one Andrew linked too looks better to me aside from the throttle being canted over for 1.8t (I know its not specifically for vag)
Click to expand...

Performance?

I'm just talking about quality and looks.
Good looks don't mean instant quality or visa versa.
Like reesy said, its under a bonnet, who cars.
Dave's welding and construction will be good quality, despite it looks.
 
16Klappe said:
Speak to Niki, I am sure if somebody sends him the inlet he will perform an independant review with dyno plots.

He will fit it to Ting Tongs car and rape the **** out of it.

Niki would probably make one if you sent him the bits.

Yes Dave, I just ordered loads of blue hoses to be just like you. It looks great :)
Click to expand...

***.. why?
I test here duh!

There is a wider world to tuning than rtech much as you luv them, and niki is very good at mapping.

I test products for other companies now Because I am thorough and independant.. and I provide logged hard factual dyno data (power,torque, afr,pressures,temps etc) not just power runs and vcds logs... qualified/thorough testing. Not all products presented to me for testing help, some in fact hinder, and dont make it to market as a consequence.. Thats why testing is important.

I have always tested stuff... I am an engineer 1st and my whole career (non-automotive) has been engineering led.

As I have said I have data on the other inlets I have tested so it would be more complete to test the Xcessive one also, to compare cylinder fills as well as comparing to dyno data.
 
Last edited:
ScottB5 said:
Performance?

I'm just talking about quality and looks.
Good looks don't mean instant quality or visa versa.
Like reesy said, its under a bonnet, who cars.
Dave's welding and construction will be good quality, despite it looks.
Click to expand...

***.. Understand and ASK YOURSELF why am I fitting a larger plenum?
For its looks??? Or for PERFORMANCE?

Performance surely else why do it?
for looks just polish it and make it bling of that floats ya boat.. and you can get a TT then
 
badger5 said:
***.. Understand and ASK YOURSELF why am I fitting a larger plenum?
For its looks??? Or for PERFORMANCE?

Performance surely else why do it?
for looks just polish it and make it bling of that floats ya boat.. and you can get a TT then
Click to expand...


That's my thinking as well.

Maybe I miss read your comment laughing at westy for not worrying about looks.
 
He`ll test the ones that he`ll build...He`s basically said that way further up this thread. He wont test Daves as he hasnt got one to test neither does he seem to want one to test.
 
Jason.s:1700614 said:
He`ll test the ones that he`ll build...He`s basically said that way further up this thread.
Click to expand...

Perhaps it got lost in translation.

Not a dig at Bill here because he is a trustworthy source and we know he wouldn't do it however self reviewed products just comes across to average joe as a sales pitch.

The Clio 172/182 is the most common car to benefit from big plenums; there have been tens of them flooded onto the market and loads of R&D into the benefits (up to 20bhp) on an otherwise impossible to tune setup. Pretty much all of the products that have gone onto the market have flopped due to unreliable testing, over inflated gains and all the usual ****. Except for one, the Stone RS2 (google it). That's because they sold them at below cost for the first 4 weeks, on the previso that the people buying them reviewed them and had the vehicle logged to show the benefits.

The same customer/independant reviews have led to the success of the B5 TIP in my opinion, because it is SUCH a good bit of kit that every single person who has had one cannot argue with the facts.

Bill doesn't need to promote the kit because everybody knows it is great. The same for R Tech's mapping and Relentless manifolds; it's all forum hype.
 
16Klappe said:
Speak to Niki, I am sure if somebody sends him the inlet he will perform an independant review with dyno plots.

He will fit it to Ting Tongs car and rape the **** out of it.
Click to expand...

As much as I am an Rtech fan, don't you think it's a little insulting suggesting that in the middle of a conversation with Bill, the man who has developed, and independantly tested SO many products for us over the years?

Do try not to be quite so narrow minded dear boy.

Bill, I understand your frustration!
 
****** hell this opened a can of worms.....

I wonder what gains you would have just welding the large port runners on to a standard plenum? as some of the gains will be because you have opened the airflow at the runners,,,,?
 
You must log in or register to reply here.

Similar threads

s3dave
Large Plenum Inlet + Eliminator Hybrid News
Replies
42
Views
3K
s3dave
s3dave
B
Intake plenum volume case study
Replies
0
Views
608
Barks
B
RS3_Simon
Large FMIC
Replies
3
Views
638
RS3_Simon
RS3_Simon
Zans
Large port help
Replies
12
Views
1K
Zans
Zans
Danny Cawsey
Large port heads
Replies
5
Views
3K
Danny Cawsey
Danny Cawsey
Top
Back