Pete W's 2002 M6 TA with JPR S1 heads, TR 224/114 cam, Uncoated Mac headers with cats, Borla wide open, stock gears but not for long <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> , BBK throttle Body with a Granitelli MAF, lid N filter, NOS dry system. It Dynoed 415 @ 6,200 383 @ 4,600 SAE corrected of course, I knew it was going to go smooth with the tunning when the first pull right out of the box was 408 RWH <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> . I was wondering how much the Mac cats hurt? If it's worth about 10 RWH and 10 RWT with an ORP we were thinking about changing it, any input here would be helpful. I will post the dyno sheet when I get it scanned.
TIA!

<small>[ June 03, 2002, 11:19 PM: Message edited by: JPR ]</small>

 

I have heard stock cats are better than mac cats.You will gain a good 15hp switching over bro.

 

Damn...those are good numbers thru MAC cats. Those are some restrictive bishes <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />

 

AWESOME #'s <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

DITCH those cats...

Shane

 

Nice numbers Joe! Ditch those cats and redyno/tune the car. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

See Joe, I told you today that the MAC cats were junk power wise. I say a nice off road ypipe would put you solidly in the 425/395 range.

Pretty damn sweet for stock valves or any valves if you ask me.

 

Hell yeah <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Pete's still smiling I bet- Tell him to get those cats off the car and stop being a weenie!!
How much of a shot is he going to run?
Another great job Joe! Time for Pete to get to the track!
<img border="0" alt="[Firebird]" title="" src="graemlins/formula.gif" />

 

at the track i gained .2and +2mph on consecutive runs .i tested this on multiple days. thats goin from mac cat-ypipe to open headers

 

Bear,
There stock valves with a couple little tricks I learned after trashing about 12 of each until I got the cuts right. I do have to make a mention of "Thanks" to Tommy "Talon WS6", He has been a HUGE help in alot of the installs and flow bench R&D for this particular S1 head design that we have relentlessly refined into what they are today. Now, like I mentioned 1 month ago, we are into the LS1 S2's and hope to get some serious numbers out of them, "BlackWS602" has been a good indicator of where those are going. 411 RWH through an auto/stall is a good starting point I think. We will keep everyone up to date with more of our S2 progress! I have a set of ported LS1 based "dyno burners" ready in 2 weeks, I am going to match them up with a 226 RSP cam which is the largest cam I have tried to date, spin it up in an M6 and see what they lay down? I will give the interested parties 1 clue, I have consistantly hit 300 cfm at .560 lift with a 2.02 valve.
Thanks!
Joe.

<small>[ June 04, 2002, 01:59 PM: Message edited by: JPR ]</small>

 

Those are nice #'s for a car with cats.. Keep up the good work JPR... That TR224 cam is really working out.. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

Mr. Prince, I have a question. Your stage 1 heads put up such high numbers; using the same cam, how much extra horsepower can you get with your stage2 heads?

 

WOW <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> great numbers joe.get rid of the cats and with a good driver that thing should put down some good numbers.122/123mph maybe? <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 346cubes:
<strong>Mr. Prince, I have a question. Your stage 1 heads put up such high numbers; using the same cam, how much extra horsepower can you get with your stage2 heads?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Were not too sure what we will end up getting consistantly with our new S2's but there is an example above in this post what we got out of the first set, 411/397 through cats and an auto/stall unlocked vert with stock gears. I really would like to see at least 20 and 20 more RWH RWT out of them for it to be worth doing the LS1 based platform, who knows? I may have to go straight to LS6 castings to really "best" them? Thanks for asking though, I have been thinking the same thing.
Joe.

<small>[ June 04, 2002, 04:39 PM: Message edited by: JPR ]</small>

 

JPR, great numbers, but let me warn you: Macs + ORY = HORRID sound! It drove me so batty <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> that I ended up getting some Carsound cats.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by JPR:
<strong>Bear,
There stock valves with a couple little tricks I learned after trashing about 12 of each until I got the cuts right. I do have to make a mention of "Thanks" to Tommy "Talon WS6", He has been a HUGE help in alot of the installs and flow bench R&D for this particular S1 head design that we have relentlessly refined into what they are today. Now, like I mentioned 1 month ago, we are into the LS1 S2's and hope to get some serious numbers out of them, "BlackWS602" has been a good indicator of where those are going. 411 RWH through an auto/stall is a good starting point I think. We will keep everyone up to date with more of our S2 progress! I have a set of ported LS1 based "dyno burners" ready in 2 weeks, I am going to match them up with a 226 RSP cam which is the largest cam I have tried to date, spin it up in an M6 and see what they lay down? I will give the interested parties 1 clue, I have consistantly hit 300 cfm at .560 lift with a 2.02 valve.
Thanks!
Joe.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">joe will have a s2 H/C car very soon i hear!

Steve from b-more

 

How does that cam idle?
Can you tell there is a cam in there?

 

"joe will have a s2 H/C car very soon i hear!

Steve from b-more"

Thanks alot STEVE! now you ruined the whole surprise! LOL! Your heads will be out to you by weeks end.

2000^C5, I'm sorry, but which cam were you asking about?

Joe.

<small>[ June 04, 2002, 06:05 PM: Message edited by: JPR ]</small>

 

Sorry,
the TR 224 114 LSA cam.

I am getting this cam for my A4 and was wondering the idle qualities of this cam.
Will people still know I have a cam in my car or will it be stock sounding? (idle of around 900)

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by JPR:
<strong>Pete W's 2002 M6 TA with JPR S1 heads, TR 224/114 cam, Uncoated Mac headers with cats, Borla wide open, stock gears but not for long <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> , BBK throttle Body with a Granitelli MAF, lid N filter, NOS dry system. It Dynoed 415 @ 6,200 383 @ 4,600 SAE corrected of course, I knew it was going to go smooth with the tunning when the first pull right out of the box was 408 RWH <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">A dumb question I see that this has a dry NOS set up was this used in the test as well j/k <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> Nice numbers through cats congrats <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

<small>[ June 04, 2002, 08:10 PM: Message edited by: Street Racer ]</small>

 

2000^C5,
The TR 224/114 idles perfectly at 850 - 900, it sounds less agressive then a 218 cam. Normally, I suggest the 112 for the M6's, but in this case, the customer was going to use NOS. The 114 is a must in the A4 IMO though for idle quality/surge and roll issues.

No NOS pulls on the dyno, It's going to need more injector before we get to that point unless 18.7 ms is still safe? I think 30lbs injectors are needed, dry shots without a window switch scare the heck out of me.
Joe.

<small>[ June 04, 2002, 10:44 PM: Message edited by: JPR ]</small>