Dyno Runs and Steeda CAI
- Thread starter Weasel
- Start date
You didn't say what your mileage was in December. If it was under 2,000 miles I would guess that some of the increase on your latest dyno pull might be due to additional engine breaking in. I have the Steeda CAI myself by the way. And I love it.
:burnout:
You posted some nice numbers but 427 rwhp seems to be high for a catback/X-pipe & Steeda CAI as your only mods.
:burnout:
You posted some nice numbers but 427 rwhp seems to be high for a catback/X-pipe & Steeda CAI as your only mods.
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I'm thinking of doing the Steeda CIA and bassani set up. You reccomend it weasel?
CobraBob,
Sorry, forgot to mention. In December the first runs were done at a little over 8,000 miles. Got the car at the end of June 02. Now I have a little over 15,000 miles. I don't believe that breakin was a factor. In fact it was colder (much) in December than this past Saturday, so I'd figure and advantage for the first runs. All runs were done on the same dyno. Bassin (Mike) and Brad were there to witness and ran their car sometime after I did.
I noticed a big difference in the A/F readings and believe that is a contributing factor as it got leaned out from the CAI installation from what I had before (very rich as normally seen).
BTW, where weere you on Saturday.
Mike79,
I'm very happy with my setup; as they say, it's hard to argue with success.
Mike
Sorry, forgot to mention. In December the first runs were done at a little over 8,000 miles. Got the car at the end of June 02. Now I have a little over 15,000 miles. I don't believe that breakin was a factor. In fact it was colder (much) in December than this past Saturday, so I'd figure and advantage for the first runs. All runs were done on the same dyno. Bassin (Mike) and Brad were there to witness and ran their car sometime after I did.
I noticed a big difference in the A/F readings and believe that is a contributing factor as it got leaned out from the CAI installation from what I had before (very rich as normally seen).
BTW, where weere you on Saturday.
Mike79,
I'm very happy with my setup; as they say, it's hard to argue with success.
Mike
I'd say from looking at the dyno sheets, you're A/F Ration leaned out on the last runs, picking up HP.
The first sheet looks pig rich, IMO. It appears to drop off the scale?
The first sheet looks pig rich, IMO. It appears to drop off the scale?
Hi Mike,
Yeh, I'd say your engine was broken in sufficiently in December. LOL! The A/F could be the reason with the higher mark. Nice numbers.
Where was I supposed to be on Saturday night? The Wallingford K-Mart cruise? I didn't go because it started raining here around 4:00 and rained off and on most of the night.
:burnout:
Yeh, I'd say your engine was broken in sufficiently in December. LOL! The A/F could be the reason with the higher mark. Nice numbers.
Where was I supposed to be on Saturday night? The Wallingford K-Mart cruise? I didn't go because it started raining here around 4:00 and rained off and on most of the night.
:burnout:
Ok say the stock dyno on that car was 360. You gained 60hp with a cai and exhaust? Rather high don't you think? Is that possible?
Some have seen close to 370-380 stock rwhp so his might be one of those.
Those numbers are not SAE, are they? The corected number would be around 415 HP, right?
Sorry, but I didn't get stock numbers. I only had the car for 3-4 weeks before putting the exhaust on. I agree that the numbers are high based on a 360 number, but I'm assuming the starting number was higher. It must have been; I was surprised at the numbers I saw in Dec. with just the exhaust.
As an example, check out Bassin's stock numbers. He dynoed only with snorkel out at around 390.
Other than that, I don't know what else to say. All I did was get in my car and step on the gas.
Mike
Keep on steping on that gas pedal!:beer:
That is great! You have a factory freak. Add a TB with a plenum and you will have a 440 - 445 RWHP Cobra without a chip or pulley! :beer:
:beer:
I have the same setup and I dynoed at 900 miles on my car. Here's my dyno. I'll have another dyno at the end of this month with 2000 miles and see what difference the break in will make. This dyno is known for low numbers, but it was the closest and it was cheap.
Weasel, did you dyno with or without the baffles. I think I'm going to try dynoing both ways to see if there is a difference. My car definitely feels better now, so I'm sure I'll dyno higher. My A/F killed a lot of my power too. Here's a pic of the A/F
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I've never taken the baffles out; too lazy. I think Postban compared with and without a while ago and there was very small or no difference if I remember. Do a search for his name. He has links in his signature that will give you the info.
I can't remember at what number of miles I felt the car loosen up. I watch my gas mileage (out of curiosity for consistency. If it goes way down something's wrong). Over the course of the first few months my mileage would increase. It may have been 1500-2000 miles before it leveled off. I'm not really sure; I'm trying to remember subtle observations from almost a year ago.
Try it again at 2000 miles and see how it is.
Mike
I can't remember at what number of miles I felt the car loosen up. I watch my gas mileage (out of curiosity for consistency. If it goes way down something's wrong). Over the course of the first few months my mileage would increase. It may have been 1500-2000 miles before it leveled off. I'm not really sure; I'm trying to remember subtle observations from almost a year ago.
Try it again at 2000 miles and see how it is.
Mike
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The Leaner the more HP u get. But looks like ur A/F was more steady then before. Staying more consistant.
But damn nice numbers...BTW TB wont get u into the 440rwhp. I only got 8hp out of the TB. for 6bills i rather spend it on the Pulley which had the most gains for me thus far & cheaper then a TB.
But damn nice numbers...BTW TB wont get u into the 440rwhp. I only got 8hp out of the TB. for 6bills i rather spend it on the Pulley which had the most gains for me thus far & cheaper then a TB.
Weasel - your A/F after installing the CAI looks identical to mine. (My mods in my sig.) Are you going to do a tune, or leave it there? I keep hearing mixed opinions about what it should be. Here's a link to mine, btw.
http://www.svtperformance.com/forums/showthread.php?threadid=41513&highlight=kennedys
http://www.svtperformance.com/forums/showthread.php?threadid=41513&highlight=kennedys
Black2003 - I took a look at your charts. Your numbers look almost identical to my early runs.
I'm very happy with the setup. It runs well, idles well, and I'm driving a car with more horsepower than I ever thought I would. My understanding is that people shoot for 11.5-12.5 A/F up high (someone correct me if I'm wrong. So, I think I'm right on the money. A tune would even that level out throughout the range. Before the CAI my car was quite lean in the low rpm range, then got very rich. Now, I don't think it's that much leaner down low, but up high it's where it should be. I don't plan on doing any mods that will effect my warranty. Like I said, I'm happy.
Mike
I'm very happy with the setup. It runs well, idles well, and I'm driving a car with more horsepower than I ever thought I would. My understanding is that people shoot for 11.5-12.5 A/F up high (someone correct me if I'm wrong. So, I think I'm right on the money. A tune would even that level out throughout the range. Before the CAI my car was quite lean in the low rpm range, then got very rich. Now, I don't think it's that much leaner down low, but up high it's where it should be. I don't plan on doing any mods that will effect my warranty. Like I said, I'm happy.
Mike
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