By all means, get AFR165 heads!

H

homerojr

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#1

• Mar 13, 2006

• #1

By all means, get those heads!! Let me start from the begining... I finished install on december, and I had some problems with rockers and valve covers, easily solved. My mechanic then suggested me to drive for some days, giving some time for the EEC IV to "learn" new patterns and to let parts (spring valves mainly) get a break-in period. So he took a very conservative approach with timin and such, didn´t even change the fuel pump (190 walbro, which I had bought already). Initially I felt the car really stronger ( see my sig below), up to 5500, however would hardly rev to 6000. I was wondering if the valve springs were maybe causing this, but I had no signs of floating or pinging, whatever. Some weeks later it was time for fine tuning. Enter the new fuel pump, FPR, and timing.... and WOOOOW.. Took it for a spin and the little screaming devil seems to wanna rev to destruction! I don´t have numbers yet, but my SOTP don´t lie, this thing flies.
Just something to remember: Only for a miracle if you ever achieve the expected performance for a given high performance part without trying, testing and tuning.
Thanks to the people at the forum:SNSign: , I really owe you all my learning!
__________________

 

95GTV8

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Jul 25, 2005

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#2

• Mar 13, 2006

• #2

nice man, how much did you end up paying for the 165's?
I'm hoping to get a decent paying job this summer and invest in some heads. I need to pick which heads i want but the 165's always get good mention.

 

Joes95GT

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Jan 23, 2003

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#3

• Mar 13, 2006

• #3

TFS heads are better!!!!

I'm glad to see another satisfied AFR customer.

Joe

 

Pokageek

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#4

• Mar 13, 2006

• #4

Sounds great! Do you think the timing made the difference mainly? My car is still at 10dg, lol. I am just wondering if it will make a big diff going higher..

 

Grn92LX

Fidanza Man!

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#5

• Mar 13, 2006

• #5

Pokageek said:

Sounds great! Do you think the timing made the difference mainly? My car is still at 10dg, lol. I am just wondering if it will make a big diff going higher..

Click to expand...

10*?

Get that timing to 18* asap!!

 

Pokageek

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#6

• Mar 13, 2006

• #6

ok.

 

chefster

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#7

• Mar 13, 2006

• #7

turbo flows sent yet geek?

 

5spd GT

"the 5.0 owns all"

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#8

• Mar 13, 2006

• #8

Pokageek - Don't just throw your timing at 18*. Some like it less and some like it more...Try different numbers. 10* is pretty weak though...get it up there a bit...good luck!

 

Methodical

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Dec 1, 2003

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Mar 14, 2006

#9

• Mar 14, 2006

• #9

Grn92LX said:

10*?

Get that timing to 18* asap!!

Click to expand...

How about 14*. Poka don't you have the TwEECer?

 

H

homerojr

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#10

• Mar 15, 2006

• #10

10*?

Get that timing to 18* asap!!

Yes ], I agree, it made a lot of diference, but no small gain came from the higher fuel pressure and volume, too. Aluminum heads can take a lot of "abuse" before they start pinging, thanks to greater heat dissipation. Just be aware to go from 2° at a time. I paid $1300 at Central Florida Motorsports, 7 months ago. Before install, I´ve done some light polishing and porting to the ports (mainly to gasket match intake and headers); the cobra intake received TMOSS treatment (thanks for your article). At this time , front and rear Bullit brakes were added (God they were needed!).
Probably a good tune and careful install on TFS, Edelbrock, Holley heads may bring at least the same satisfaction I got ( not yet any dyno charts), but to my own experience, and according to countless suporters, these heads rock!!! ...and there´re still some hidden horses (a better cam, CAI, Tweecer, etc.)

 

Pokageek

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#11

• Mar 15, 2006

• #11

Gotcha guys. I am not dumb enough to just bang my timing up to 18dg, lol. But thanks for checking up on me with that one! I will probably try 12 and see how it goes first just to be on the safe side.

 

5spd GT

"the 5.0 owns all"

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#12

• Mar 15, 2006

• #12

Pokageek - Keep bumping it up in 2* increments...you will probably find it running best around 16-17* from what I have seen and heard. Just listen for it to ping...back it down a degree or two from there to compensate for different loads/temps later on...good luck!

 

Pokageek

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#13

• Mar 15, 2006

• #13

5spd GT said:

Pokageek - Keep bumping it up in 2* increments...you will probably find it running best around 16-17* from what I have seen and heard. Just listen for it to ping...back it down a degree or two from there to compensate for different loads/temps later on...good luck!

Click to expand...

Hey, thanks man! I thought 18 was a joke. Will try it.

 

Grn92LX

Fidanza Man!

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#14

• Mar 15, 2006

• #14

Pokageek said:

Hey, thanks man! I thought 18 was a joke. Will try it.

Click to expand...

It'll like somewhere between 16 and 20*. My very first combo I did was a full TFS combo. At the track I went from 14* to 18* timing and went 1.5mph quicker. Back then I used to hit the track often so I was consistent. No, 18* wasn't a joke, its what most TW headed cars find as the sweet spot. Im no rookie to tuning TW combo's If you have a tuning device shoot for 34* total upstairs.

 

5spd GT

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#15

• Mar 15, 2006

• #15

"Tuning" is as simple as turning the distributor and turning the allen screw on an adjustable fuel pressure regulator. Easy stuff...you'll get it! Just drive and listen...