Hey Guys

I thought id post a thread with my comparison of the 1673 vs 977B cam

Ok, first off a bit of history on my car....

Awhile back, with the 1673, I pulled 174rwkw with factory tickford ECU on hallam performances dyno thanks to paul at CVE (basically played with the dizzy a bit)

I soon then returned with changed diff gears + no clutch fan (added thermos), and only managed 165rwkw, however i was informed this is normal for the dyno to show less power as the gears are shorter...this was very hard to explain to other people, when they asked, howd you loose 10rwkw?, *sigh* either way, the power was doubted by many, but paul said, go race it...

I achieved 13.7 seconds at calder.

Returned to paul, and we fitted a J3 to which paul tuned up for me, i ended up gaining way more power from basically idle, all the way to redline, (trimmed a/f, more timing) however, this did not gain me more rwkw then 165.

Later on, for fun, a good friend of mine, Chris from Intech Motorsport, asked if i would like a power run on his dyno, for comparison and a bit of fun. I agreed, and the car punched out identical to hallams dyno, 165rwkw.

Now to show, how much timing helped the car, i recently went back before upgrading to the 977B, to see what the 1673 had with stock timing (10degrees BTDC and using factory ECU again)

The result was this (1673 stock timing vs advanced)



Now it was time for the 977B to be fitted. Once fitted, I went and got another dyno with stock timing on the 977b, the result was 154.7rwkw. So it really didnt get me any more RWKW, but it had a nicer curve then the 1673 (stock timing, 2 different cams)



Now once we pumped ~ 5 more degrees via distributor into the 977B, it awoke its potential, ill let the next picture speak for itself: (977b stock vs advanced timing)



Please note, the 555nm is not really 555nm, its ~528nm, the dyno is reading that from when chris started recording the run.

So to compare it to the 13.7 second "tune" this is what we get:



So it was good being able to run both cams, with base timing and then advanced, and get a true comparison between the two. I am just hoping now i can better my 13.7 time, remembering i am still running naturally aspirated !

Thanks Guys!!!

Big thanks to Paul @ CVE & Chris @ Intech Motorsport!

Nice work Grechie.
I told people along time ago to advance the timing 5-10 deg. extra with cam & all other comin mods. I did this to my car (engine) & made a differance. A bigger differance is bigger throttle body.
My car made 151rwkw & 423rwnm with my 17 inch tyres & rims.
My dyno operater said to me put your standard 15 inch wheels & the dyno will show more power.
My dyno operater also said by putting a stallie you will loose power but gain torque sooner.
Personly chassis dynos are for tuning only. True figuers are quarter mile figures.
My dyno operater also said to me my car will run mid to high 13 sec. quarter mile times.
I am very happy with the 977B wade cam (wow what a cam) . I am also very happy with my power figuers keeping in mind i drive my car everyday to & from work.
Grechie i have always admierd your power figuers since i have joined ford mods.
Keep up the good work buddy.

Yeah 977b is the new 1636 ......... as more people are willing to do a few extra mods in order to run a hotter cam

Mine made good power when it was manual & custom tuned. Never bothered taking it to the track though...

Nice Result there - 577nm of Torque OMG

I have an EF 6cyl with a Coil Pack so I cant advance the timing

I got 161.1rwkw with my Billet 977B

Thats with a 3,000 stall and Auto - both these add to loss of RWKW

hey mate can the j3 change the timing wen tuned i am getting an engine built soon with quite a few mods and looking for a good cam

Yeh it can. You can adjust fuel, spark and various other things, check out http://www.tiperformance.com.au/ .

I had my timing a extra 8 deg. Jason at T.I Performance told me to put it standard timing which i did. After instaling my J3 chip i checked the timing & he gave me a extra 5 deg.

makes me wanna get the 977b even more

Grechie,

I would like to say thanks for such a terrific post. It was free of BS and had plenty of detail. The even better part was that there was before and after for all changes. There was also comparisons between dyno's for verification.

Excellent contribution.

Phil

Grechie, how much torque did you have when the 1673 was putting out 174rwkw?

From your dyno runs, I'd like to know what the difference in torque is between the two cams. On their website, Wade say the 977b generates less torque.

Last edited by Shortshift on Wed Feb 03, 2010 11:49 am, edited 1 time in total.

yer very informative Grechie, top stuff mate

Great post Grechie. Makes me wanna get the AU1645/977B equivalent now for boost....lol

This cam is excellent for NA. I wonder what it will do if you had more head work.

I've just had a good read thru this post & well done Grechie, both on your power & an excellent post, free of BS, just raw facts...

Cheers

ToranaGuy

This thread is gold!! Been waiting for something like this lol. This has convinced me even more to go the 977b path

Grechie, are you still running the stock 91AA head?

Stock everything, j3 chip 977b adj cam gear and extractors 155rwkws and 440nm's not bad for 600 buks including tuning...