[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

50mm intake, was Re: ebay link



Hey Dan,

I just got through the break in period last Sunday. My guy that built the
motor told me to keep the car under 3500RPM for the duration of the 1500
mile break in. So I didn't have the ability to really gauge the difference
from my stock 1.8 with cams and CIS. However I did notice that going up
steep hills and acceleration were much better to the 3500 shop imposed
limit. Sunday I started wrapping it out to see where the power comes on.
With my E36 M3 the power comes on like a sledgehammer around 4000RPM. The
same can be said of any VR6 car but more like a mallet relatively speaking.
On my 16v 2.2ltr it comes on very linear. There isn't a big rush of pull at
any real RPM like my other car. I was kind of worried that my motor wasn't
set up properly. One thing though is with the forged pistons it seems to
take about 15-20 minutes of driving time for them to heat up. Driving it
cold seems kind of lopey with the AutoTech cams. Not too much power
difference. It is better than my older motor but isn't as dramatic under
lower RPM. When it is totally warmed up like half way through my drive in to
work which is about 30 miles. Power is really evident when I'm around 5k-6k.
This is with basically the same setup as the guy on Ebay selling his 2.2ltr.
I moved to Motronic for idle stability. Was going to go the megasquirt route
but didn't have the extra dough for all the doo dads required for the swap.
The shop that did my motor charged me $150 total for the Motronic swap. That
is a phat deal for sure. Monday I'm getting the TechTonics chip made for my
setup. That should add quite a bit for the $100 it cost. Much better than
$500+ for an intake.

I dig the motor and seems to run extra smooth. The idle is kind of rough but
my guy mentioned that it is the cams that make the idle that lopey. Before
WaterWagens I'm getting my ceramic coated SuperSprint header installed to
replace my aging header. Funny how these things crack so often. They used
half a reel of wire to repair the latest round of cracks. It really sucks
bad that SuperSprint has discontinued all Scirocco related products and
replacement parts. Their gear is top notch in my book.




On 7/7/06, Dan Bubb <jdbubb@verizon.net> wrote:
>
> I don't have any hard data either, but some peripheral data seems to
> indicate the 50mm ought to work well on a 2.0 or 2.2L.
> Of course, the 50mm originally came on the European 1.8L. That, the
> addition of a cat and the Euro intake cam, which is still nothing to write
> home about, raised power from 123@5800 to 139@6100. The maximum torque
> speed went from 4250 to 4800 although the max torque value didn't change
> much (conflicting numbers from my research). And, of course, the breadth of
> the torque curve is probably very much in favor of the US engine.
> Anyway, the bigger intake manifold seems to be integral to the higher
> power of the Euro 1.8L.
> I'd can't think of any reason why that wouldn't translate to a bigger
> engine that will have an even higher airflow capability.
>
> My experience with 16V engines isn't extensive, but I do know that the
> difference in midrange power going from a 1.8L to a 2.0L, with no other
> changes, is really dramatic. I'd expect the 2.2L would be another big step
> up. So, much in fact that I doubt you'd miss the comparative lack of
> midrange of the 50mm.
> Typically, increasing an engine's displacement without other changes will
> increase torque and low end power, but will also reduce the peak power
> speed. So you end up with a comparative torque monster that needs to be
> shifted at a lower maximum RPM. Making changes to bolster the top end would
> seem appropriate to me.
>
> Check out the pictures here:
> http://www.scirocco16v.com/gallery/16v_abfengines_index1.htm
> The 2.0L European ABF looks to have a hell of a big intake manifold.
> Well, at least it looks that way to me!
> Anyway, nothing definitive, just a bunch of sort of related facts and my
> opinion.
> Dan
>
> ----- Original Message -----
> From: "Lance LaPrarie" <sciroccojunky@gmail.com>
> To: "Dan Bubb" <dan.bubb@gmail.com>
> Cc: "alex porter" <alexporter_14@hotmail.com>; <scirocco-l@scirocco.org>
> Sent: Thursday, July 06, 2006 5:51 PM
> Subject: Re: ebay link
>
>
> > Hey Dan,
> >
> > I don't have any hard data to back that statement up. I did a bunch of
> > research when deciding to get the best out of my buck on my current
> motor.
> > I
> > was going to buy a 50mm intake and read somewhere that it really doesn't
> > do anything for you on larger motors. I also asked the shop that built
> my
> > motor and they said it wouldn't do anything benefitial for me and not to
> > spend the money. From what I gathered it's like the 1.8ltr head on a
> > 2.0ltrblock. It helps if you don't port it out. Once you port it out
> > you lose the
> > advantage over the 2ltr head ported. Porting a 1.8 and a 2.0 head there
> is
> > really no difference between them. So if you know something that I
> don't,
> > I
> > stand corrected. Also, top end power really doesn't matter to me since
> I'm
> > not going to be racing my car. I'd rather have the power in a usable
> spot
> > which is the midrange. My personal preference though.
> >
> >
> > On 7/6/06, Dan Bubb <dan.bubb@gmail.com> wrote:
> >>
> >> Lance,
> >>> Have any data to back up this statement?
> >>> I think the common knowledge is that the 50mm intake boosts top end
> >>> but hurts the midrange some, at least on the 1.8L.
> >>> I'd think with the additional airflow of the 2.0 or 2.2L engines it'd
> >>> be a benefit everywhere.
> >>> Dan
> >>>
> >>> On 7/5/06, Lance LaPrarie <sciroccojunky@gmail.com> wrote:
> >>>
> >>> > I opted out on the
> >>> > 50mm intake since it actually robs you of power on 2.0 16v's or
> larger.
> >>> >
> >>> >
> >>> > Check it out.
> >>> >
> >>> >
> >>>
> >> _______________________________________________
> >> Scirocco-l mailing list
> >> Scirocco-l@scirocco.org
> >> http://neubayern.net/mailman/listinfo/scirocco-l
> >>
> >
> >
> >
> >
>
>
> _______________________________________________
> Scirocco-l mailing list
> Scirocco-l@scirocco.org
> http://neubayern.net/mailman/listinfo/scirocco-l
>