7A Exhaust Cam

[rash]

I`ve talked to Audi_CQ, and he confirmed the 5` retard of the exhaust..

Looks like 7a intake cam works best in stock timing. But not so very impressive results...
I`ve done a ton of research on 7a intake now, and i dont think i will run one.. I think it will be 3b intake + 7a or catcams exhaust for best midrange/street-able power..

retard?? i remember he sait 5 deg advance...


I also guess the 7A inlet cam is the same as the NM inlet but the NM is 4deg advanced

--> NM 2° nOT to 34° nUT
--> 7A 6° nOT to 38° nUT

I will try so set the 7A cams both 5 deg advanced

7A ex from original 42deg before UT and 3deg before OT to 47deg before UT and 8deg before OT

7A in from original 6deg after OT and 38deg after UT to 1deg after OT and 33deg after UT

[Jamo]

I`ve talked to Audi_CQ, and he confirmed the 5` retard of the exhaust..

Looks like 7a intake cam works best in stock timing. But not so very impressive results...
I`ve done a ton of research on 7a intake now, and i dont think i will run one.. I think it will be 3b intake + 7a or catcams exhaust for best midrange/street-able power..

7A gains are high up the rev range and they make the car pull harder in acceleration from mid to high.

I've got NM cams in my car, Repo is going to clock them to his trademarked cam timing.

Once completed should give me good low / mid torque which i'm more concerned about than top end

[Ola]

They have, Audi_CQ and Repo have posted about changing the timing.

Audi_CQ has posted the timing changes on the forum

I`ve talked to Audi_CQ, and he confirmed the 5` retard of the exhaust..

Looks like 7a intake cam works best in stock timing. But not so very impressive results...
I`ve done a ton of research on 7a intake now, and i dont think i will run one.. I think it will be 3b intake + 7a or catcams exhaust for best midrange/street-able power..

[rash]

Use a heater to expand the chain gear wheel (and be sure not to heat the cam!) and use a rubberhammer hammer it slowly off, working in circles untill it is off. Use extreme caution when doing this

THX - i guessed/feared to do it in this way...

[AndersS2]

I have my Original Camshafts here on the table now.

And im asking myself (and you ) how to disassemble the Chain Gear from the cam ???

Use a heater to expand the chain gear wheel (and be sure not to heat the cam!) and use a rubberhammer hammer it slowly off, working in circles untill it is off. Use extreme caution when doing this

[Jamo]

After reading several pages here, about the 7a cams, i`m a little suprised no one has experimented in timing both cams a little..

I have seen one guy posted that he had changed the cam timing for both (only outside adj. wheel), without any gains, but i cant seem to find anyone that has tampered with BOTH cam timings separately yet..

If anyone can point out any writings/dyno`s on someone`s tweaking the 7a cam timing separately, i would be very interested in this.
I`m going to try a little myself, with G-tech, before i hit the dyno.. And i`m not sure if i will go for ADU or 7a cams yet, allthough 7a seems to be prefered by most people.

They have, Audi_CQ and Repo have posted about changing the timing.

Audi_CQ has posted the timing changes on the forum

[rash]

I have my Original Camshafts here on the table now.

And im asking myself (and you ) how to disassemble the Chain Gear from the cam ???

[Ola]

After reading several pages here, about the 7a cams, i`m a little suprised no one has experimented in timing both cams a little..

I have seen one guy posted that he had changed the cam timing for both (only outside adj. wheel), without any gains, but i cant seem to find anyone that has tampered with BOTH cam timings separately yet..

If anyone can point out any writings/dyno`s on someone`s tweaking the 7a cam timing separately, i would be very interested in this.
I`m going to try a little myself, with G-tech, before i hit the dyno.. And i`m not sure if i will go for ADU or 7a cams yet, allthough 7a seems to be prefered by most people.

[Bram]

Hi rwilthil, your setup is very interesting. Do you have a project thread somewhere so we can share experiences?

Cheers

[rwilthil]

In an earlier post it was mentioned that using a 7A cam with a map made for AAN cam would make the engine run a bit lean.
I have a map made for 7A ex cam, but running with the stock AAN. My AFR is down at 10,4 which is a bit rich. So this seem to be correct.
Engine runs BTW very nice.

This is with a GT3071, .63 ar. RS2 ex mani, 3" DP and BN pipes exhaust. 034 chip set. Max boost 1,8 bar.

I will install a 7A ex. cam shortly, but will take some G-tech runs so we can compare.

[Acidburn]

chipsenter, your brother told me about the race-cams...

i will keep my 7a´s for sure

did you change to both 7a or only exhaust cam and some other inlet?

thought the general opinion on running both 7a cams is it makes the car even more rubbish on fuel

[lind4hl]

chipsenter, your brother told me about the race-cams...

i will keep my 7a´s for sure

did you change to both 7a or only exhaust cam and some other inlet?

[meep]

7A's Man

Sweeeet will have to get me a couple of thoose then Cheers

[chipsenter]

7A's Man

[meep]

Not bad Mannen

Whats the AR on this Turbo ? Check my results with 7A Cams
We tried both with Racecams and 7A's must say im impressed , we got 1,2 kg's of boost at the same Rpm's with 7A's

Its not a bad suggestion bro.

Ahh sweet. Did you choose racecams or 7a in the end?
Theese 7a cams seems more and more interesting.