This cant be right! or can it?
Thread Starter
TECH Resident
Joined: Oct 2008
Posts: 801
Likes: 1
From: Anaheim Ca.
Thanks, 4 years ago it was pretty cool. Nicer stuff out now.
Check that adjuster though, you can take up any slack out of the cable with it. You have a traction control car, right? They are the only ones with single cable to the TB, unless the cruise was removed from a non TC car.
Check that adjuster though, you can take up any slack out of the cable with it. You have a traction control car, right? They are the only ones with single cable to the TB, unless the cruise was removed from a non TC car.
I took all of the slack out by putting it in the other hole on the T/B. But yes I have that adjuster, I just didnt know what it was. Thank you. My question is still un answered. Do I need to get my tune redone, because it was tuned when the T/B was only open about 75%?
Last edited by slow ride 02; Jan 31, 2013 at 08:05 PM.
Thread Starter
TECH Resident
Joined: Oct 2008
Posts: 801
Likes: 1
From: Anaheim Ca.
So I have a feeling this might be your timing...which may be pulled due to your head gasket. If you are running 24 degrees of timing on 93 octane (just a for instance, you havent said) it might be due to your head gasket bore size. My heads are 61cc, they are mamofied 215s so not a direct comparison, but Tony has emphatically told me that I need 4.080 bore head gaskets because of the milling my chambers are wider and the big bore gaskets are required to prevent detonation.
To be honest, it didnt look that way when I held them up to the heads, but I am running 30 degrees right now with the big bore gaskets and I gained 25 ftlbs everywhere by advancing from 26 degrees. Thats through an a4 and a 9".
Im definitely no expert, but you might ask Tony since youre running AFRs.
To be honest, it didnt look that way when I held them up to the heads, but I am running 30 degrees right now with the big bore gaskets and I gained 25 ftlbs everywhere by advancing from 26 degrees. Thats through an a4 and a 9".
Im definitely no expert, but you might ask Tony since youre running AFRs.
Std bore is 3.900
Gaket is 3.910
Chamber is opened up to 4.00 (if reworked by Tony)
4.00
- 3.910
= .090 divide by 2 = .045 of gaket material not covered by the head, and exposed to chamber heat and a .005 lip from the gastket to the block. I found Tony telling someone that 4.030 gasket I.D. would be the min.
I did it mostly for a smoother idle for emissions and quick throttle response for handling. Oddly, I was amazed what a difference this made to the car in a corner or coming off one.
Anyway hopefully the OP can find out the issue. I personally only use 25 degrees of timing in my 455. Typically I have seen a better head will need less timing to make power. If Tony says it could be an issue though, I would listen to him.
It does seem odd that the torque is peaking so late on the 2nd graph. In fact I would say you have not even seen the peak hp there, but if you have a stock bottom end with stock rod bolts, I would not rev it past 6700 rpm.
When the intake I have was only opening to what was shown as 80% in the PCM, we picked up 15rwhp at my power level with 100%. It does make a difference.
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Verdad Gallardo Thread Starter
TECH Resident
Joined: Oct 2008
Posts: 801
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From: Anaheim Ca.
Okay guys, I took it back to the dyno that I made my bolt on numbers (343 rwhp/355 rwtq). It looks better 454 rwhp/403 rwtq. Thats 111 hp and 48 ftlbs of tq. But is really rich, and whats that dip in tq from 4,000 to 4,700?
Certain header designs are a lot more efficient than others. I know that LG has done a lot of research and experimentation with this very principal with their header and x-pipe design.
It does look pig rich though, tuner should of caught on to that quickly and leaned it out.
Thread Starter
TECH Resident
Joined: Oct 2008
Posts: 801
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From: Anaheim Ca.
I took it back today. With both dyno sheets. They said it was fine, better a little rich than lean. He said would you rather lose 5 or 10 hp, or have a broken motor? He seemed offended that I questinoned his tune. He said that he would look at it, but not for two weeks, he is too busy, I need to get in line 
Find someone else to tune the car. Plain and simple, overly rich is dangerous as well as too lean.
It appears to be below 10-1 AFR in several spots
Below 11.5-1 on most the pull
Barely makes it to 12-1 at 6,400rpm
You would be amazed how much power can be picked up. It is very audible on the dyno. If he is willing to leave the fueling that bad, I am very curious as to know how bad the timing table looks.
If you don't get it fixed before the next time I get down there, I'd be willing to bring my HP Tuners if you could find a dyno to rent.
It appears to be below 10-1 AFR in several spots
Below 11.5-1 on most the pull
Barely makes it to 12-1 at 6,400rpm
You would be amazed how much power can be picked up. It is very audible on the dyno. If he is willing to leave the fueling that bad, I am very curious as to know how bad the timing table looks.
If you don't get it fixed before the next time I get down there, I'd be willing to bring my HP Tuners if you could find a dyno to rent.
I took it back today. With both dyno sheets. They said it was fine, better a little rich than lean. He said would you rather lose 5 or 10 hp, or have a broken motor? He seemed offended that I questinoned his tune. He said that he would look at it, but not for two weeks, he is too busy, I need to get in line
I took it back today. With both dyno sheets. They said it was fine, better a little rich than lean. He said would you rather lose 5 or 10 hp, or have a broken motor? He seemed offended that I questinoned his tune. He said that he would look at it, but not for two weeks, he is too busy, I need to get in line
Thread Starter
TECH Resident
Joined: Oct 2008
Posts: 801
Likes: 1
From: Anaheim Ca.
I think that I see where you are going with this. Lets do the math.
Std bore is 3.900
Gaket is 3.910
Chamber is opened up to 4.00 (if reworked by Tony)
4.00
- 3.910
= .090 divide by 2 = .045 of gaket material not covered by the head, and exposed to chamber heat and a .005 lip from the gastket to the block. I found Tony telling someone that 4.030 gasket I.D. would be the min.
Std bore is 3.900
Gaket is 3.910
Chamber is opened up to 4.00 (if reworked by Tony)
4.00
- 3.910
= .090 divide by 2 = .045 of gaket material not covered by the head, and exposed to chamber heat and a .005 lip from the gastket to the block. I found Tony telling someone that 4.030 gasket I.D. would be the min.
Thread Starter
TECH Resident
Joined: Oct 2008
Posts: 801
Likes: 1
From: Anaheim Ca.
