TSP 231/237 on stock heads
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From: Denton, TX
Originally Posted by 44mag
numbers look a little low. probably something to do with the bad o2s. was this through cats? you can also add pulley for another 10 hp.
Originally Posted by black_knight
No they aren't. With his mods it should be much higher.
Brandon
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From: Raleigh, NC
I am with black night. Would not have guessed such low numbers for that cam.
Why would bad 02s cause low numbers? The A/F ratio looks good. I did not think at WOT, open loop, O2s were even looked at by the computer?
Why would bad 02s cause low numbers? The A/F ratio looks good. I did not think at WOT, open loop, O2s were even looked at by the computer?
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Launching!
Joined: Jun 2004
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From: Kansas
I agree with what everybody said but also look at those heavy *** wheels he has on there too. Those are costing him "some" but maybe the bad o2's are the rest. if he got lighter rims maybe he would pick up a little more??
Thread Starter
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From: Denton, TX
Originally Posted by OneBad98Z
was this a dynojet or a mustang dyno? make quite a difference.
later,
Greg
later,
Greg
The car is tuned. It runs like a dream for that size cam. Back in 1998, people would have killed to be able to run that large of a cam on stock heads, and have it run properly.
On that dyno, I also didn't have the ported TB. I still don't have a crank pulley. So basically I had the 231/237 cam, Pacesetter LT headers with Lane's 3" Dr. Gas x-pipe duals, LS6 intake, and NGK TR5 plugs. At the time, I had a bad o2 sensor as well. Actually one of them wasn't plugged in while it was on the dyno. The Tech II was giving a 999 reading for the pass. side o2, so I looked under the car and sure enough the extension wasn't plugged in.
A month or so later I was having some trouble with some codes (don't quite remember which) but they were associated with my LT headers. I got them cleared and re-tuned with the ported TB, but no dyno numbers. I plan on having the car dyno'd again when I have the crank pulley installed.
I also want to add that I have no oil consumption issues even with the cam. many people report that they get oil consumption after a cam install. The motor runs great, and is very healthy. Just because I don't see 400+ at the rear wheels doesn't mean that there is something totally wrong with the car. Like I said, I had no ported TB and no pulley. That's an easy 20hp. So you can figure 392rwhp. Then the dyno that the car was tested on is notorious for being 10rwhp off from other local Dynojets. Not that it matters, but just throwing that in for good measure.
You also have to remember that some people on-line don't always tell the truth on their numbers. Some have belt tricks, others who knows.
Thread Starter
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From: Denton, TX
Originally Posted by greekss
considering it is tuned it is quite low....
my buddies tuned full bolt on Tr224 114 put down 396
and my buddies tuned hotcam bolt-on put down 399 through true duals
my buddies tuned full bolt on Tr224 114 put down 396
and my buddies tuned hotcam bolt-on put down 399 through true duals
You're missing 20-35 HP and a boatload of torque. A pulley and throttle body would not account for that. Those are the only two bolt ons you're missing, right? I mean untuned this would be nothing unusual, but tuned...
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From: Denton, TX
Originally Posted by black_knight
You're missing 20-35 HP and a boatload of torque. A pulley and throttle body would not account for that. Those are the only two bolt ons you're missing, right? I mean untuned this would be nothing unusual, but tuned...
Thread Starter
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From: Denton, TX
Originally Posted by black_knight
Front or rear? If front, then that explains it.