2.7 Liter Engine w/ Torque Cam?

Build projects, things that guys have come up with to make a Pinz better (or worse?) and aftermarket add-ons.
nicholastanguma
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2.7 Liter Engine w/ Torque Cam?

Post by nicholastanguma »

I've read some posts from Dennis Linden stating his personal opinion of the Goatwerks 2.7 liter engine is that it definitely makes more horsepower, but at the expense of the standard engine's tractable low rpm torque.

In other words, good for highway and mountain driving, not so good for plain ol' offroading.

But I've also read other posts wherein Jim LaGuardia mentions he has a torque cam for the aircooled engine. So wouldn't a 2.7L engine with the torque camshaft be the best of both worlds?
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Jimm391730
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by Jimm391730 »

I have Jim LaGuardia's 2.7l, "torque" cam grind, and slightly higher compression pistons, all done at the same time many years ago. Using the stock carbs I got an increase in torque across the rpm band which might peak higher in the 2000 to 4000 rpm range but that does not mean that there is a deficit of torque outside those speeds. On the dynometer it made more power across the full rpm range (roughly 20-30% more than stock).

I would definitely do it again.
Jim M.
712W and 710M
nicholastanguma
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by nicholastanguma »

Thread necromancy!

Anyone else have experience with the LaGuardia 2.7 big bore w/ torque cam?
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TechMOGogy
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by TechMOGogy »

Give it a month or 2 and I will have mine and will report back!
72 Pathfinder | 75 710M 2.7i | 96 350GDT Worker
nicholastanguma
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by nicholastanguma »

TechMOGogy wrote:Give it a month or 2 and I will have mine and will report back!

Imma hold you to it, Techmo.
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totaljoint
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by totaljoint »

The 2.7 with cam was a noticeable improvement.
Still started off in second gear even with the 710 transfer case in the 712.
nicholastanguma
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by nicholastanguma »

totaljoint wrote:The 2.7 with cam was a noticeable improvement.
Still started off in second gear even with the 710 transfer case in the 712.

Thanks for this little review!
nicholastanguma
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by nicholastanguma »

TechMOGogy wrote:Give it a month or 2 and I will have mine and will report back!

Alright, TechMOGogy, it's been well over a month or two. So let's hear a review, sir.
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TechMOGogy
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by TechMOGogy »

nicholastanguma wrote:
TechMOGogy wrote:Give it a month or 2 and I will have mine and will report back!

Alright, TechMOGogy, it's been well over a month or two. So let's hear a review, sir.
Still a work in progress so I can't report yet.
Adding Scotts PS kit so that delayed completion
Sorry!
72 Pathfinder | 75 710M 2.7i | 96 350GDT Worker
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rmel
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by rmel »

I have 2.7L + EFI and getting 120hp+ on the Dyno. The real reason for this conversion in the
first place was the need for 60+ MPH on the HWY -- but NOT just by running the engine at higher
RPM which would not be a good idea. The upgrade also required a gear ratio change, moving to
the TD tranie (4'th is OD) -- yes you loose out some on low end crawling.

The key point is what's the real need here for more torque? The standard Pinz and gear ratios are
pretty darn good as is, but if you are going to change your gearing you will need to increase your
Torque as well.

IMHO the ideal setup for a 710 would be: 2.7L(EFI) + TD Tranie + 712 Xcase.
The 712 Xfer case is on my long list of future mods.
Puller: 71' 710K 2.7L EFI aka Mozo
Follower: Sankey MK 3, 3/4 Tonne
Rescue Pinz: 73' 712MK

Driver: Ron // KO0Q
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by NEWFISHER »

The 710 case is desired by the 712 guys, shouldn't have a problem swapping yours I would think?
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TechMOGogy
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by TechMOGogy »

This seems like the way to OD a Pinz
http://real4x4forums.com/PinzgauerBBS/v ... =Overdrive
Anyone interested?
72 Pathfinder | 75 710M 2.7i | 96 350GDT Worker
nicholastanguma
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by nicholastanguma »

rmel wrote:I have 2.7L + EFI and getting 120hp+ on the Dyno. The real reason for this conversion in the
first place was the need for 60+ MPH on the HWY -- but NOT just by running the engine at higher
RPM which would not be a good idea. The upgrade also required a gear ratio change, moving to
the TD tranie (4'th is OD) -- yes you loose out some on low end crawling.

So izzat 120hp "on the dyno" just the engine itself being dynoed or actual 120 rear wheel hp? Surely just at the engine crank, methinks?

And I agree that simply turning higher revs at highway speed would be pretty stoopid. I'm assuming the loss of some of the low end torque, therefore, comes from the gear ratio change and not so much a difference between powerbands of the 2.7 versus the 2.5?
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rmel
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by rmel »

As measured at the rear wheels using factering the gear ratio, done by John at Outfront Motorsports'.
http://www.outfrontmotorsports.com/ It's somewhat qualitative and based on John's
expertise. Yup, you loose torque with the TD tranie, but you gain back some with the 2.7 mods.
The Torque vs. RPM curve is definitely steeper than stock.
Puller: 71' 710K 2.7L EFI aka Mozo
Follower: Sankey MK 3, 3/4 Tonne
Rescue Pinz: 73' 712MK

Driver: Ron // KO0Q
nicholastanguma
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Re: 2.7 Liter Engine w/ Torque Cam?

Post by nicholastanguma »

TechMOGogy wrote:
nicholastanguma wrote:
TechMOGogy wrote:Give it a month or 2 and I will have mine and will report back!

Alright, TechMOGogy, it's been well over a month or two. So let's hear a review, sir.
Still a work in progress so I can't report yet.
Adding Scotts PS kit so that delayed completion
Sorry!


TechMo, have you got your rig right, yet? What's the verdict on your new 2.7 engine?
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