2.6 cam specs table!

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Re: 2.6 cam specs table!

Postby dryvr12 » Sat Jan 05, 2013 7:05 pm

Really interested in hearing how the 272 performs. Im looking for something with more midrange power 2000-3500 that doesnt negatively affect mileage (if possible) That reminds me, how is mpg vs stock with these aftermarket cams?
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Re: 2.6 cam specs table!

Postby MarkB.NV » Sun Jan 27, 2013 2:11 am

Buttoned up my '90 Trooper after installing the 272 and checking to see that the ignition
timing was dailed in at 12-13 degrees. On initial driving of about 20 miles, there's maybe
a little loss of off idle torque, but now the entire range from 2500-5500 seems to be usable.

I should probably try the Torque app on the Android and see what the numbers say.
I suspect that my gas mileage may go down initially - 'cause somebody keeps stepping
on the go-pedal. Calmini header with hi-flow exhaust @ 2.25" and now Delta 272.
Valve lash set to 0.006 and 0.008

Definitely comes on much stronger when punched, easily chirping the nearly new 31" Firestones :twisted:
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Re: 2.6 cam specs table!

Postby Apeiron » Sun Jan 27, 2013 10:49 am

dryvr12 wrote:That reminds me, how is mpg vs stock with these aftermarket cams?


I didn't notice any difference, but I'm not OCD about tracking milage.
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Re: 2.6 cam specs table!

Postby Cydog000 » Thu Apr 04, 2013 7:39 pm

Im looking at picking up the Delta 272 cam for the 86' 2.3L trooper. What valve adjusters should I get. Is it these - EMPI 21-2031 VW HD SWIVEL VALVE ADJUSTERS? I found them on ebay. I just got off the phone with delta and they said that I did not need to get valve adjusters as the mechanical rockers already had room to adjust for the grind on the cam. Are the valve adjusters only useful to get the most out of the cam?
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Re: 2.6 cam specs table!

Postby Apeiron » Thu Apr 04, 2013 11:38 pm

I think those are the ones I used. They just spread the load over a larger area and leave more threads up top for adjustment. Absolutely no difference to geometry, though.
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Re: 2.6 cam specs table!

Postby aribert » Wed Oct 09, 2013 1:05 pm

Greetings all - reopening this old thread. Found it while looking online for cam card specs for my Delta 260 cam. I bought and installed the cam "straight up" back in '02 (Delta did not send a cam card with the cam).

Is the 260 grind balanced between lobes or advanced? Has anyone played with (adjusted) cam timing with this cam? As I understand it, advancing the cam yields more torque at the expense of top end power. My typical shift point is between 3300 to 4000 so I might not mind loosing a little more off the top end.

My engine suffered a mild overheat (never boiled over when the alt belt tensioner broke) last winter and now that I am getting my Amigo back out of storage and readying it for the upcoming winter it appears that the head gasket is blown. Since I have a 2.6 head on a 2.3 engine, I am down on compression so I figure that I will have the head milled a bit and reset the cam timing (via the drilled hole in the cam sprocket) to compensate for the head milling. Using a mill and rotary table I modified one cam sprocket to +4, +8 and -4 degree. I figure that I'll put a degree wheel to the engine when I reinstall the head.
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Re: 2.6 cam specs table!

Postby eljefe62 » Tue Oct 15, 2013 9:09 pm

I know it's an old thread, but it sounds like some people on 4x4wire were saying that the 272 cam was only really for carb applications and shouldn't be used (http://www.4x4wire.com/forums/showflat. ... 186&page=0), and I was wondering if this was really true? I want the 272 because I need my trooper to go up mountain roads (I70 to Eisenhower tunnel), and I feel like the low-end torque is just fine. Do those of you running this cam have carbs?
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Re: 2.6 cam specs table!

Postby chuffer » Wed Oct 16, 2013 9:23 am

eljefe62 wrote:I know it's an old thread, but it sounds like some people on 4x4wire were saying that the 272 cam was only really for carb applications and shouldn't be used (http://www.4x4wire.com/forums/showflat. ... 186&page=0), and I was wondering if this was really true? I want the 272 because I need my trooper to go up mountain roads (I70 to Eisenhower tunnel), and I feel like the low-end torque is just fine. Do those of you running this cam have carbs?


I don't think the 272 is gonna enable the Trooper climb up to the tunnel that much better. That is one heck of a climb from either side for a 4-banger truck. Prolly best to just resign yourself to third gear and enjoy the scenery.
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Re: 2.6 cam specs table!

Postby imamonstertruck » Wed Jan 22, 2014 11:49 pm

chuffer wrote:
eljefe62 wrote:I know it's an old thread, but it sounds like some people on 4x4wire were saying that the 272 cam was only really for carb applications and shouldn't be used (http://www.4x4wire.com/forums/showflat. ... 186&page=0), and I was wondering if this was really true? I want the 272 because I need my trooper to go up mountain roads (I70 to Eisenhower tunnel), and I feel like the low-end torque is just fine. Do those of you running this cam have carbs?


I don't think the 272 is gonna enable the Trooper climb up to the tunnel that much better. That is one heck of a climb from either side for a 4-banger truck. Prolly best to just resign yourself to third gear and enjoy the scenery.


Yeah, I just did climb and it is a bear in 4th gear with the 3.4 holding 50... it is what it is


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Re: 2.6 cam specs table!

Postby dryvr12 » Sat May 24, 2014 6:16 pm

Ran across this: http://www.isuzuperformance.com/bills/engcam.html

Web cam for the 88-89 impulse n/a 4zd1.
OEM is listed as .230 lift duration @50 thou 218
Stage 1 .235 lift duration @50 227

Also, any information on this new cam map that I hear is in the works?
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1988 Trooper LS 2.6L Auto to manual swap, Asin hubs, 228k+
http://forum.planetisuzoo.com/viewtopic.php?f=15&t=50707
LED gauges, sony h/u, alpine speakers, jl audio w3's, grant steering wheel, cup holders, procomp 98s

Odometer correction: http://forum.planetisuzoo.com/viewtopic.php?f=1&t=67546
Dome light fix: http://forum.planetisuzoo.com/viewtopic.php?f=17&t=62898
LEDs:http://forum.planetisuzoo.com/viewtopic.php?f=1&t=51643
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Re: 2.6 cam specs table!

Postby Fox » Sun Nov 30, 2014 7:48 pm

I just pulled my Delta 272 cam, and replaced with a Delta 260. What a difference. I enjoy driving the truck again. Pulls hard, chirps tires, and its smooth.

The 272 was an utterly useless cam in my 1991 Amigo 2.6

Tried every option to make it work. From everything from 8* timing to 16* in a systematic order. The engine was a dog on bottom, and a dog on top. WOT was required at all times to have any sort of decent acceleration on highway. It might be usable with a bunch of extra compression, and full intake exhaust however in my opinion, anyone who says that its a "top end cam" is a damn fool. It was useless. Not to mention tons of Valve noise. Set at .007". double checked multiple times. I ran it about 8 months.



On a side note...

I'm selling a perfectly good Delta 272 camshaft! :mrgreen:

(actually I'll probably turn it into a Lamp)
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Re: 260 delta cam

Postby noisycricket » Tue Jan 12, 2016 10:25 pm

outofrshell wrote:I bought my cam from Independent 4X and they must only sell the 260 because nothing was mentioned of a choice. Thats probaly a good thing I would have just been confused any way.The cam does just what it is said to do, it does increase the power at the lowerend up thru the mid range. But much past 3500-3800 and it flattens out.My 2.6 has a Calmini header and a reconfigured ECM(Jet Performance). The one thing that I wasn't happy about was fuel milage offroad (14-16 down to 12-14). Just a side note I keep reading posts about cam timing with people saying not to use the balance pulley to set the cam because it may have slipped. Isn't that impossible to do becuase you have to have everything back together befor there is a mark for TDC? It may effect Ign. timing but not cam timing unless I missing something. Dave


did you have to do anything special because I was looking at that cam too and the gear for the distributor is not in the same place as mine. I also can not find any other cam besides that one for a 2.6l
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Re: 2.6 cam specs table!

Postby noisycricket » Tue Jan 12, 2016 10:28 pm

Cydog000 wrote:Im looking at picking up the Delta 272 cam for the 86' 2.3L trooper. What valve adjusters should I get. Is it these - EMPI 21-2031 VW HD SWIVEL VALVE ADJUSTERS? I found them on ebay. I just got off the phone with delta and they said that I did not need to get valve adjusters as the mechanical rockers already had room to adjust for the grind on the cam. Are the valve adjusters only useful to get the most out of the cam?


did you by your cam directly from delta?
the only cam I could find was the 260 cam.
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Re: 2.6 cam specs table!

Postby noisycricket » Tue Jan 12, 2016 10:30 pm

Fox wrote:I just pulled my Delta 272 cam, and replaced with a Delta 260. What a difference. I enjoy driving the truck again. Pulls hard, chirps tires, and its smooth.

The 272 was an utterly useless cam in my 1991 Amigo 2.6

Tried every option to make it work. From everything from 8* timing to 16* in a systematic order. The engine was a dog on bottom, and a dog on top. WOT was required at all times to have any sort of decent acceleration on highway. It might be usable with a bunch of extra compression, and full intake exhaust however in my opinion, anyone who says that its a "top end cam" is a damn fool. It was useless. Not to mention tons of Valve noise. Set at .007". double checked multiple times. I ran it about 8 months.



On a side note...

I'm selling a perfectly good Delta 272 camshaft! :mrgreen:

(actually I'll probably turn it into a Lamp)

Did you have to do anything special with your head. I too was looking at the 260 cam for my 95 rodeo with the 2.6l but it looked like the gear for the distributor is the wrong spot.
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