Another Successful "Want More Torque" Cam Swap
04-27-2006, 02:48 PM
#41
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Originally Posted by Ragtop 99
For a lot of people who see the track a few times per year, trading .1 of ET for car that slices through traffic the other 250 work days per year is worth it.
Brandon
04-28-2006, 10:38 PM
#42
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Well, here's the graph of today's dyno runs. I couldn't be happier with the results. I didn't think I would hit 400 RWHP with the stock 99 heads and a 12-bolt, but this "little" cam sure proved me wrong.
The red lines are with the cutout closed, while the blue are with the cutout open.
Obviously, it was quite lean. Looking at the computer screen, where the AF scale was tightly stacked, it appeared the line was hovering around 13. It wasn't until after I got the printout that I realized it was, in fact, nearing 14:1 in spots. I have since added what should be a bit over half-a-point of fuel. I'm not sure how this has affected the numbers, but I doubt it's a significant difference power wise.
Josh
The red lines are with the cutout closed, while the blue are with the cutout open.
Obviously, it was quite lean. Looking at the computer screen, where the AF scale was tightly stacked, it appeared the line was hovering around 13. It wasn't until after I got the printout that I realized it was, in fact, nearing 14:1 in spots. I have since added what should be a bit over half-a-point of fuel. I'm not sure how this has affected the numbers, but I doubt it's a significant difference power wise.
Josh
Last edited by Josh; 04-28-2006 at 10:44 PM.
04-29-2006, 07:01 AM
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Sure. Unfortunately, it's not a very good one (STD correction), but it's better than nothing, I suppose.
That run was done before the 12-bolt and SD tune. I just had the T-ReX dynoed last week before the cam swap, and it did 417 RWHP and 380ish TQ, but I don't have a graph of that run yet. As am I'm sure you've guessed by now, there aren't many competant dyno shops around here.
Josh
That run was done before the 12-bolt and SD tune. I just had the T-ReX dynoed last week before the cam swap, and it did 417 RWHP and 380ish TQ, but I don't have a graph of that run yet. As am I'm sure you've guessed by now, there aren't many competant dyno shops around here.
Josh
04-29-2006, 09:17 AM
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Originally Posted by Josh
Sure. Unfortunately, it's not a very good one (STD correction), but it's better than nothing, I suppose.
That run was done before the 12-bolt and SD tune. I just had the T-ReX dynoed last week before the cam swap, and it did 417 RWHP and 380ish TQ, but I don't have a graph of that run yet. As am I'm sure you've guessed by now, there aren't many competant dyno shops around here.
Josh
That run was done before the 12-bolt and SD tune. I just had the T-ReX dynoed last week before the cam swap, and it did 417 RWHP and 380ish TQ, but I don't have a graph of that run yet. As am I'm sure you've guessed by now, there aren't many competant dyno shops around here.
Josh
Is there anyway to figure out what you picked up or lost?
04-29-2006, 09:28 AM
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Originally Posted by Josh
Sure. Unfortunately, it's not a very good one (STD correction), but it's better than nothing, I suppose.
That run was done before the 12-bolt and SD tune. I just had the T-ReX dynoed last week before the cam swap, and it did 417 RWHP and 380ish TQ, but I don't have a graph of that run yet. As am I'm sure you've guessed by now, there aren't many competant dyno shops around here.
Josh
That run was done before the 12-bolt and SD tune. I just had the T-ReX dynoed last week before the cam swap, and it did 417 RWHP and 380ish TQ, but I don't have a graph of that run yet. As am I'm sure you've guessed by now, there aren't many competant dyno shops around here.
Josh
04-29-2006, 08:40 PM
#48
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Originally Posted by Lady Redhawk
Josh, what dyno did you take it to last week? Great numbers on the T-Rex with the 12-bolt.
Josh
04-29-2006, 08:41 PM
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Originally Posted by 2c5s
Is there anyway to figure out what you picked up or lost?
Josh
04-30-2006, 05:31 PM
#53
Originally Posted by 99zman
with a cam like this 228/232 .588/.595 110 LSA +2. do you have to have a sd tune or not?? thanks
