Wow, very comprehensive, thanks! Sounds like someone who isn't into
racing should stick w/ just the cams.
Canucker Trucker wrote:
> :) .. weeeell ... I suppose I could elaborate a bit.
>
> I installed the Cams and intake separately so I could judge the gains from
> each mod (most people do them both at once). I did the cams first, then the
> intake.
>
> As for the cams, they were incredibly straight forward to install. I
> followed instructions I downloaded off the Speedtweaks site in the tips and
> tricks section (Thanks Bernd & Tom!). I got a picture and dimensions of the
> wedge tool from someone on the web (maybe even a DMLer - Glen I think his
> name was) and then made my own out of wood (which I wrapped in a plastic bag
> to avoid wood chips in the engine).
>
> The only snag with the install was the driver's side valve cover was a HUGE
> pain in the a$$ to get off. Took close to 3hrs of just pissing around.
> Once I got it off once though, it was a snap to get on and off again. Lots
> of guys remove all sorts of stuff like the fuel rail, power steering pump
> etc etc to get it off, but I didn't have to in the end. After that, it was
> all smooth .. except my buddy grounded the alternator to its housing when he
> hooked it back up (had to disconnect the wire to help move the wiring
> harness outta the way of the driver's side valve cover). That blew a
> fusible link no biggy.
>
> After the cams were in ... initial reactions was :-o!!! I drove around for
> a few weeks with just the cams. Great low end gains. good mid range gains,
> maybe a bit of top end loss. If I was idling around in first gear (or even
> second actually) then put my foot through the floorboard, the tires would
> light up every time. it was great!
>
> The cams took .15-.25 seconds off my G-Tech times but made runs really
> really inconsistent due to traction issues. Also got a 15hp G-Tech
> horsepower increase. Gas mileage went up a bit too if I drove nice.
>
> Next I did the intake. Suprisingly easy to do as well. Only took a few
> hours from parking the truck in the garage to firing it up again. One snag
> that was my own fault, I forgot to hook up the vacuum line in the back of
> the manifold. Fired it up and there was a loud sucking noise .. shut the
> truck off and found the problem without any troubles. Fired it up again,
> then went for a test drive.
>
> Reaction after the intake was also :-o!!! The engine would readily rev
> right up to the 5000RPM range without even hesitating now. ... the downside
> though: most of that low end TQ gain from the cams was gone. It's still
> better than stock, but there was a definite loss after the intake.
>
> G-Tech times are now MUCH more consistent (within .1 seconds each run,
> versus a .3 second spread with just the cams). This is because it is much
> easier to launch now. Average G-Tech times didn't really change much though
> (to my dismay) after the Intake. maybe gained a tenth at best. G-Tech
> horsepower also didn't change much .. gained 1-2hp average, but I wouldn't
> even beleive for a second that the G-Tech is that accurate.
>
> Conclusion:
> The intake would work much better with a more aggressive cam (KRC's new one
> for example) if you're looking for a TQ peak around 3500-4000RPM. With the
> HO cams though, I don't think its a very good combination. basically, I
> think the cams are designed for low end TQ, but the intake is for higher RPM
> gains. put them together, they almost kill eachother. If I had the
> time/effort, it'd be interesting to see what just the intake alone does with
> the stock cams. I would guess that would be a faster combination with more
> high end hp.
>
> Either way you look at it though, the HO cam/Intake combo is still much much
> better than stock. Hands down the best mod so far.
>
> My advice:
> If you're just going to tow, install the HO cams only.
> If you're looking to go faster, try just the intake and see what it gains
> you. Then install the cams after.
>
> Realistically though, for just over $300 for the ENTIRE combo, you can't go
> wrong. I've wasted that much money on one good night of drinking!
>
> Sorry for the book ... but you asked for it! ;^) I'm sure that's more than
> you ever wanted to know.
>
> Any more questions, feel free to ask.
>
> --
> Canuck
> --------------------------------------------
> Y2K, 4.7L, 2wd, 5spd, The Ultimate K&N HomeBrew, Flowmaster CatBack, Home
> Ported TB, Electric fan conversion, 180 therm., Redline synth., IAT
> adjuster, HO Cams, HO Intake
> http://www.twistedbits.net/WWWProfile/dakota/Vyikam1jjgNN6
>
>
> "Art DiRamio" <ADiRamio@opensolutions.com> wrote in message
> news:CD14A5E5DC40D611930E00508BDC9E4E47BC1F@exchange.opensolutions.com...
>
>>No, No, No...
>>
>>You can't just say you've done it, you need to provide details! (well,
>
> you
>
>>can, but that's just plain mean ;^) )
>>
>>I see you did the cams too. How'd it all go? Are you happy? Any issues?
>>
>>Inquiring 4.7L drivers need to know
>>
>>Art DiRamio
>>'01 Patriot Blue QC Sport+ Auto HD 4X4
>>4.7L 3.55s Penda soft tonneau
>>'97 Kawasaki Vulcan Classic 1500
>>
>>
>>
>> -----Original Message-----
>>From: Canucker Trucker [mailto:flamindakman@yahoo.co.uk]
>>Sent: Friday, November 08, 2002 12:15 PM
>>To: dakota-truck-moderator@bent.twistedbits.net
>>Subject: DML: Re: 4.7L HO intake manifold
>>
>>
>>I've done it.
>>
>>--
>>Canuck
>>--------------------------------------------
>>Y2K, 4.7L, 2wd, 5spd, The Ultimate K&N HomeBrew, Flowmaster CatBack, Home
>>Ported TB, Electric fan conversion, 180 therm., Redline synth., IAT
>>adjuster, HO Cams, HO Intake
>>http://www.twistedbits.net/WWWProfile/dakota/Vyikam1jjgNN6
>>
>>
>>"andy levy" <andylevy@yahoo.com> wrote in message
>>news:aqevvj$8ti$2@bent.twistedbits.net...
>>
>>>Just learned that the 4.7L HO manifold can be purchased separately, much
>>>like the HO cams. Anyone currently on the list done this? Yes I have a
>>>318, I'm just curious about it is all.
>>>
>>
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