Hope all had a great Thanksgiving!! Now.. I need some input!!

The Adjustable cam gear!! I am going to add that mod... funny there hasn't been a run on the fast power builder like changing the cam phase!! It is a hotrod trick your dad or grandfather used.. and it is still here on the S/C engine( and the MC)!!

Question: How many degrees are available on the gear. ( + or - 10*??)
What HP /Tq gains were seen from the install and advancing the cam?? How many degrees?? Where did you get the Cam gear?? I know of GTT over in the UK, anyone here??

SOOOOooo..... get those fat fingers working.. and let me know!! cool??
As soon as I get a gear.. I will do some dyno runs and post the numbers.. just looking for some heads up info..

Thanks

Thumper

 

-3° is well enough!

 

Thumper460
I believe Jan at RMW also sells a adjustable cam gear.
Steve

 

MadMick
How do you get your site to changeover to english. I clicked on the English version and it was still in German.
Thanks

 

Thanks for the answer.. Have you tried the degree change?? or is this what you have seen from others?? did you try ADVANCE settings??

The reason I ask , is that "OLD School" I have found the power to be in the advance side of the timing ( phasing) . My idea is to advance ( although I will try retard) the cam phase!! In everything I have done since the 70's , it has shown more power.. ( save a specific cam.. that is cut for the boost) S/C- NOS- N/A all of it!! Seeing as the cam isn't a custom RACING unit for the specific racing s/c engine, and the compromise is in favor of fuel/idle/100K miles ect that a mfg is harnessed with.. I feel the advance IS the future!! Maybe a +4 or +6* ICL advance on the cam??

I do have a dyno sheet from a UK site I visit.. it is in Deutsch. Is it from you?? The power gains were done on the advancing the cam.. can not read the sucker ( language and quality) but the numbers ( being what ever they are) show a fantastic gain?? Yes??

'Thumper460
I believe Jan at RMW also sells a adjustable cam gear.
Steve'
STEVE... I cannot find it on his site??

Thanks guys...

Thumper

 

I translated it using yahoo babel fish. However, I couldn't get any subforums to come up on the subsequent pages (past the home page).

 

THANKS

Jan does have a cam gear, it may not be on his site. It's a little behind.

 

Scroll down the page and on the lower left side is a box called "deutsch, sie" click on it and change to english.

@Thumper: The dynograph is from a CatCam with the GTT adjustable camgear, once set to earliest and once to the latest position.
The earlier position got the higher power.

 

Ach..Ja!! So the lower reading was with the cam in the retard ( from 0) and the high reading was in the advanced position. yes?? Do you know how many degrees + or - on the gear??? Stiil the numbers are 20+ (Difference) in what ever measurement they use..yes?? or maybe 10+ going to the advance position?? Hell, that is pretty good for a 100.00 item?? yes??

Thanks.. I will now sign into the site you posted!! Good to get work ideas..yes??

Just me.............................

Thumper

 

It is set -3° from neutral position, the numbers are in hp and nm (Newtonmeter) 1,36nm equals 1 lbs/ft.

 

Thanks... the numbers are good!! And thanks for opening the site up!! Hope I can help there , cause I know you all will be helping me!!

Just me...............................

Thumper

 

Thumper, talk to the guy called "Pedro" on our site, ha has the most experience on the adjustable cam gear.
The dyno is from his car....

 

Cool... I will make it happen... lol my German is old " GI Deutsch" and I can only make out a few written words... lol. however I will shoot him a post!!

Thanks

Thumper

 

Oy.. Thanks for the help Madmick and your site powerminiS.com. I called Rowland in GTT at the UK. Got all the info I was looking for and a lot more on other products. Seems ( as I knew already) the Brits are way above the power curve!! Lots of good thingys!! LOL

SOOOooo....... When I get ito the adjustable cam gear.. It will be with a great product and I know fantastic results that I will share with all interested!!

Thanks all

Just me...........................

Thumper

 

Keep us up to date Thumper!

Are you going to go with the GTT ADJUSTABLE VERNIER CAM SPROCKET?

 

Yes..the GTT will get my bucks!! However it is this christmas thing going on...lol SOOooooo.. I told Roland, it will be after the holidays!! I will run a good dyno/ tech on the gear and see what is better on our little engines!! yes??

Just me................................

Thumper

 

Just an update. A friend of mine has an MCS and after a head install it was DOWN on power. The technician was draging his feet on the repair to the power loss issue. I ran a compression test to chcek out the machanics in the engine and found the compression low. And suggested the camshaft being out of proper phase.. The tech said that ".....the timing chain , if droped would not come off the lower gear, and he did have the marks correct on the camgear.

I found that the cam gear tooth is 17*. I suggested we try advancing the cam up the 17*, run a compression test again for any gain or loss. ( still thinking the cam phaes was out) Not having the adjustable cam gear (yet), we moved the cam up ONE tooth. The compression jumped up 23psi at cranking compression!! we put it back together and he went for a test drive... You could hear the tires screaming with his gear changes.. I'll bet that grin is STILL on his face!!

SOOOOOOooooooo.... there IS power there in the adjustable cam gear. I am more eager to get mine and run evals and dynos on my 06 with the stock camshaft!! I will keep you posted. Could be a cheap power mod yet!!

Merry Christmas ya'll

Just me...............................

Thumper

 

Thumper: This friend who had the compression issue, was the incorrect cam shaft phase due to the chain skipping a gear due to it falling off the bottem or something else? The reason I ask is I too have heard that the timing chain will not fall off the bottem cog when removed from the cam however I've also heard the opposite. Just curious as to which way of thinking was correct.

 

I have an engine mocked up for degreeing the camshaft... ect. and it DOES come loose enough for it to "slip a tooth". I suggest that a little care be taken when doing any cam gear removal or cam work!! I use a bungie cord to hold the T-Chain tight when I am in there...all I can say.. it was the issue this time.. Hope it helps..


Just me...........................

Thumper

 

sorry to bring this back from the dead but im swappinbg my cam in a couple weekends and was wondering if anyone had links to an adjustable cam gear. thanks

 

In old-school days, there were adjustable cam gear options with adapters for the cam pin that would allow +/- two degrees and +/- four degrees. I never experimented with this when I used to drag race; I just zeroed out the cam that I picked out for the engine. If memory serves, all you are doing is moving the power band up or down a few hundred RPMs.

However, now working with computers, roller cams, and so forth, there may be some gains that are unforseen. Too bad they don't make cam sprockets with enough teeth so you could advance or retard by about four degrees (i.e. one tooth).

 

^ You are EXACTLY right. Thought about drilling the cam gear & cam much like early 911s & gave it up = way too much time....
Can't recall the figures for VW BUT it was an inexpensive mod, well worth the effort.

 

　
[FONT=Times New Roman]Been a long while.. but the results are worth it. Here are just a few guys like you and me... and the mod is pretty easy !!


......I'm out in the garage this morning working on the car, and I realized that in all my excitement I forgot to report on Thumpers cam gear.

This is hands down one of the best mod's I've done to a MINI, Thumper said that I should feel it in the seat of my pants and man was he right! I have a Shrick installed and it was ok but with his ACG it really came alive.
If you have a cam installed or are thinking about one, this cam gear is a MUST! Thanks again Mike
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[/SIZE][FONT=Times New Roman] Mike got a first in class yesterday. My first run, before the IC got heat soaked, I could feel the extra torque especially off the line. I can feel the difference on the street as well. I could see how a conservative driver, do you know any, will see an improvement in their mileage with the cam being indexed. No wonder Eddie Conrad kept wanting me to let him do this. But he wanted me to bring him the engine. LOL
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[/FONT][FONT=Times New Roman]After receiving my [/FONT][FONT=Times New Roman][FONT=Times New Roman]Adjusted Cam Gear[/FONT][/FONT][FONT=Times New Roman] from Thumper I promptly had it installed according to have Thumper recommended, and WOW did it make a difference in how my Mini engine feels. The power and torque comes on much quicker and stays on all the way up to redline. I also saw a slight increase in MPG i went from 28MPG to 31MPG on the normal route i take. It complements my TPR1 head with a stock cam very well. I can wait for more Thumper products to come down the line.
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[FONT=Times New Roman] Mike,

This course was a lot faster than the others so far this season. It was perfect for where you have my cam set.
Schrick Camshaft
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[/FONT][FONT=Times New Roman][/FONT][FONT=Times New Roman]OEM cam sees more HP and torque... read it at: [/FONT][FONT=Times New Roman][FONT=Times New Roman]http://www.motoringunderground.com/forum/showthread.php?t=22056&page=17[/FONT][/FONT]
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[/FONT][FONT=Times New Roman]I can't say enough about the [/FONT][FONT=Times New Roman][FONT=Times New Roman]ACG[/FONT][/FONT][FONT=Times New Roman], esp. for me, I just got lucky and got one of those ECU's that doesn't like cams, so I had no choice but to stick with the OEM, but now it's the same or better than when I was trying to use either of the cam's I tried, simply because the power comes on sooner, as the graph above tells you I got a peak difference of 7 ft/lb's, but if you look at it closely you'll see that early on it was more like a 9 to 10 ft/lb gain, and neither of my cams turned on near that early. As the guy who designed it say's "It Just Rocks!", not to mention it's a pretty simple mod."[/FONT]
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[/FONT][FONT=Times New Roman][SIZE=5][FONT=Times New Roman][SIZE=5][FONT=Times New Roman][SIZE=5]Milled Head .030" and Degreed Camshaft w/ AdjustED Cam Gear
[/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][FONT=Times New Roman]Compression test shows the gain in compression for sure. Before TPR2R was 165 on all 4, now all 4 cylinders are 200psi
[/FONT][SIZE=3]Ported Head some results...
[/SIZE][FONT=Times New Roman]....one side benefit that won't show up on the dyno graph is how much smoother the car will run at "tip-in" accel and general driving... the car will feel more effortless.. it's hard to put in words, but you can actually feel it while driving the car"
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Just wanted to give you a quick update. I finally have had a chance to get the gear installed and do some data logging. The motor seem quite happy with the change. I haven't had it on a dyno yet, but have some observations from the data logs:
The boost curve has change significantly. Before the motor would be at 12.5-13 psi by 4500 RPM and stay there until 8000 RPM. Now it builds from 11.25 psi @ 4500 and steadily increases to 13.8 psi @ 8000.
Calculated air flow has increased everywhere.
That last one is the most important to me. Increased airflow = increased power.


Thanks


Thumper
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