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Cam and Valve Spring Question 16v [Delta Regrind]
I just got mine back from Delta 2 weeks ago and installed it the day before
I went to Cincy.
The reason that I did the cam in the first place was because I was paying
close attention to Ben Harder's dyno runs on his Mk2 1.8 16V. His gains
were amazing. Compared to my stock 1.8 (which, with 41,600 miles on it,
put a very, very healthy 105hp to the ground, the highest I've ever seen on
a stock 1.8), he made more than 12 peak HP (at the wheels).
More amazing is the very high-rpm gain: For example 28 Whp @ 6500 rpm!!!
Check it out for yourself: http://www.scirocco16v.org/dyno/deltacam.jpg
My car is now a 2.0, but I'm sure the results are similar, if not even more
spectacular. I can't believe the difference the cam made. It transformed
my 2.0 (with a complete SuperSprint engine-back exhaust -- with cat-less
race header!) from a boring, low-rpm torque monster to a high-rpm screamer.
Low-rpm torque seems to not have suffered, but who cares anyway, because
the gains up top are *phenomenal*. (And by the way, for those who know
me, I love low-end torque.)
It's the best $100 you'll spend on your car, and I highly recommend doing
it! Plus, in contrast to using an Exhaust cam as the intake, there's no
messing around to find the right timing, and idle doesn't suffer. (Idle
quality sucks with the Exhaust-as-Intake cam swap).
I'll be doing a post-cam dyno run in the next few weeks...
YMMV...
Jason
At 02:13 PM 6/17/2003, Dan Smith wrote:
>Why don't you just mod an exhaust cam for intake usage? It's free and like
>you said, has a 268 or 270 profile, comparible, like you said, to a euro
>cam. If you still go the Deltacam route, let me know how it goes as I will
>be sending them a cam shortly myself.
>
>Dan
>
>Brian Wagner <brian_wagner@sbcglobal.net> wrote:
>Ok just got off the phone with Delta and they will only grind a 260
>profile on the intake cam, the exhaust is already a 268 or 270. The
>expected gain per delta is 10~12% over bhp, which is reasonable. The gain
>would be comprable to a euro intake and the cost is $95 for the regrind
>and shipping both ways. Also it is a plug and play installation nothing
>needs to be changed in the head. So for say $130 a 10~12% can be had on
>the 16v, seems to be well worth it and I will be trying it very soon.
>
>Brian
>
>Brian Wagner
>wrote:
>I believe it is $90 per cam so $180 for a set of 16v's. To check them out
>go here www.deltacam.com.
>
>Brian
>
>Jeff Toomasson wrote:
>How much do they charge for this biz-nass?
>
>TIA, JT
>----- Original Message -----
>From: "Brian Wagner"
>
>To: "ATS - Patrick Bureau" ; "Brian Wagner"
>
>;
>Sent: Tuesday, June 17, 2003 8:26 AM
>Subject: RE: Cam and Valve Spring Question 16v
>
>
> > I kinda figured that they wouldn't regrind the the radical profiles, but I
>still have the question on the 260 and 268 will I need to change the spring?
>And what is every ones thought on an assymetrical grind (intake being larger
>than exhuast or vice versa)?
> >
> > Brian
> >
> > ATS - Patrick Bureau wrote:
> > I beleive that delta will only regrind OEM cam up to 268 anyways, you
>better
> > call trhem as this was the answer I got from a very friendly gentleman
>that
> > answer all my questions when I was considering getting my 8v OEM cam
> > reground.
> >
> >
> > ATS - Patrick Bureau - txrocco@sbcglobal.net
> > Http://www.longcoeur.com/scirocco/
> > ============================================
> > '85 2.0L Prowler Orange Kamei X1 Rocco
> > '85 1.8L Titian Red Rocco (daily driver)
> > '98 4.0L Jeep Cherokee
> > '91 7.3L F250 diesel Super cab,8 Ft box.
> >
> >
> >
> > =>-----Original Message-----
> > =>From: scirocco-l-bounces@scirocco.org
> > =>[mailto:scirocco-l-bounces@scirocco.org]On Behalf Of Brian Wagner
> > =>Sent: Tuesday, June 17, 2003 9:55 AM
> > =>To: scirocco-l@scirocco.org
> > =>Subject: Cam and Valve Spring Question 16v
> > =>
> > =>
> > =>All right after some horse trading I have acquired to set of
> > =>stock 16v cams and will be sending a set to Delta to be reground.
> > =>The question of the day is what is the maximum profile that I can
> > =>use without changes the valve springs? I am only looking for a
> > =>moderate gain of 8 to 10 hp (in reality probably a little less).
> > =>
> > =>Shrick offers the following profiles
> > =>
> > =>260, 268, 276, 284, 300
> > =>
> > =>items that are bold ( I would assume you need different springs)
> > =>
> > =>Your input is greatly appreciated.
> > =>
> > =>Brian
> > =>_______________________________________________
> > =>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
>
>
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