Went to the Drag Strip This Weekend - Results & Questions Inside
Not really a big Drag Strip guy but was curious as to what the car would run. Its a 04 6MT Sedan with Pop Charger, Z tube, MD 5/16" Spacer, and a coupe midpipe. I was hoping temps outside would cool off a good bit at night but they stayed up around 80 when I finally got to make a few passes. I got there just before they closed so I hot lapped the car to get some passes in. My best time was a 14.1@99 with a 2.104 60ft (had two 14.1's, a 14.2, and a 14.3 with a friend in the car). I was running on a set of auto cross tires that hooked ok (was easier to lite them up off the line than I thought) but overall they did pretty well. I cant wait to go back when it gets a little cooler outside. Overall I'm very happy with the numbers the car ran and I had a great time at the track.
http://i38.photobucket.com/albums/e1...kTime_0002.jpg I'm going to add a few mods to the car now and get a tune. There seems to be a never ending debate on headers but i'm going to do the install myself and purchase a set used so even if I dont get much out of them I wont be disappointed. I plan on installing headers, High Flow Cats, possibly a Y-Pipe, and then get a Tune. I have a few questions: Which headers seem to do best out of these: Stillen Ceramics (or SS), DC Sports, or Top Speed Pro-1? I see people talking about gains with the HFC's and a few ponies with the Cat backs but not much about Y pipes. Are aftermarket y-pipes worth the money? Which HFC's have the least Rasp? Kinetix and Crawford seem to be popular. Which would you guys recommend? |
Was it Atlanta Motor Speedway? I saw on their calander that Friday Night was the last night drag. I wanted to go, but had to work. I will probably be there next Friday to see what y 5AT lays down.
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Originally Posted by G'd Out
Was it Atlanta Motor Speedway? I saw on their calander that Friday Night was the last night drag. I wanted to go, but had to work. I will probably be there next Friday to see what y 5AT lays down.
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Which headers seem to do best out of these: Stillen Ceramics (or SS), DC Sports, or Top Speed Pro-1? I see people talking about gains with the HFC's and a few ponies with the Cat backs but not much about Y pipes. Are aftermarket y-pipes worth the money? Which HFC's have the least Rasp? Kinetix and Crawford seem to be popular. Which would you guys recommend? Hope this helps -Sean |
Sean,
Thanks so much for the reply. You mentioned that you dont like the Ceramic HFC because the material isnt as stong as a metallic cat. I would assume that this would apply to the Headers as well? The last thing i want is the headers to crack and have to pull them apart again. However, the DC headers that I see floating around the Classifieds are Ceramic and a good price. If they're going to cause trouble I may want to pick up another set. From what you've seen, do the Stillen headers flow as well? I have seen a few sets of those for sale. I was doing some searching over on my350z and came across a set of High Flow Cats that seem to get great reviews and are stainless steel. They're called "HopUp" (stupid name). I read a number of posts that said they sound excellent. Here's The Link: http://www.hopupracing.com/ulrahicani35.html Have you guys ever heard of them? |
I believe Sean was referring to the converters core, not it's exterior construction. It is said that HF cats with metal cores can withstand more heat (leaner conditions) and will generally last longer. The cats you linked to at hopupracing are Carsound (Magnaflow) converters. Good units, however, they have ceramic cores, I believe. I went through 2 Carsound cats on my EVO VIII. Finally switched to a metal core converter and had 0 problems.
Originally Posted by abailey269
Sean,
Thanks so much for the reply. You mentioned that you dont like the Ceramic HFC because the material isnt as stong as a metallic cat. I would assume that this would apply to the Headers as well? The last thing i want is the headers to crack and have to pull them apart again. However, the DC headers that I see floating around the Classifieds are Ceramic and a good price. If they're going to cause trouble I may want to pick up another set. From what you've seen, do the Stillen headers flow as well? I have seen a few sets of those for sale. I was doing some searching over on my350z and came across a set of High Flow Cats that seem to get great reviews and are stainless steel. They're called "HopUp" (stupid name). I read a number of posts that said they sound excellent. Here's The Link: http://www.hopupracing.com/ulrahicani35.html Have you guys ever heard of them? |
[QUOTE=CFaber]I believe Sean was referring to the converters core, not it's exterior construction. It is said that HF cats with metal cores can withstand more heat (leaner conditions) and will generally last longer.QUOTE]
The metallic cores actually with stand more heat as well as cars that run rich for long periods of time. ------- As for the ceramic issues, yes, i was referring to the cores of the HFC's or the "comb" inside the HFC there is a cob like material that filters out fumes and what not. The metallic cores are going to be able to with stand more heat and engines that run rich. The ceramics will decay faster so they are going to have a shorter half life if you will. As for headers if you buy ceramic headers you are going to be in the clear it is just the coating on the outside of the tubes... -Sean |
Great numbers! With tune only u should hit 13s easily. Looks like u know how to launch the car pretty well. Way to represent 03-04 6MTS. :D
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Originally Posted by Nismo G
Crawfords sound amazing and give great gains! I would go with them over just about any other HFC except for the fact that they are ceramic. I personally would go with a metallic HFC (if i had the choice) just because the material is going to be a hell of alot stronger and withstand more abuse, just my opinion again though. Stillen and AAM are the only companies that i know of that make a metallic HFC, but no body has them to my knowledge. -Sean As of metallic core cats, FI (fast intentions) has been providing them for awhile and they have awesome reviews on them (300 cell metallic core). If you go through those reviews, you would indeed also see how some people commented on the poor construction and design of the crawford cats. FYI: From time to time, you will see quite a few people selling their Kinetix HFCs. However, it is more rare for you to see people selling their Crawfords' and I have almost never seen anyone selling their FIs' cats. I guess this might tell you abit more of how much do our fellow G/Z owners love their various brands of HFCs. |
Nice runs, especially at Commerce. The calculated density altitude conditions were in the 1500-1700' range (low 70s, 68 degree dew point, 800' elevation, 30.20 baro). Go back when the temps are in the 50s and you should be a tick or two quicker.
As for HFCs, I'd talk to Trey Hutchinson about that. I believe he's had Crawford HFCs and a different make. Neither made noticeable gains on the dyno from what I remember. |
Good times man. I already mentioned in the top25 thread that you're launching very well. I never had the skill to launch like that on street tires; I envy you.
And I don't mean to be a dick, but this is trey the mod talking: I'm going to move this thread to the drag racing section. If you're interested in discussing headers/hfc's, please create a separate in the intake/exhaust section. Now back to trey the forum member: DaveB is correct; I've had two different brands of HFC's and now I'm on test pipes. I'm sorry I never answered your questions before. Start a thread in the intake/exhaust section, and I'll be happy to respond. |
Thanks for the compliments and the tips on Exhaust. Like Dave suggested, i'm going to create a new thread to ask some more specific questions. I'll be heading back to the track in a month or so when its cooled off and I have hopefully added a few more mods. Hopefully next time I post it will be a with a 13.XX time slip :driving:
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Those two particular timeslips are interesting. The 1/4 ET's are within 32 thousandths of each other, and the 1/4 traps are off by 11 hundredths. The 1/8th mile ET's are also very close: less than 4 hundredths. But, the 1/8th mile traps are off by over 1.5mph. I find that odd. Either way, you picked it up on the big end.
Mid 78's in the 1/8th is right around what Cheryl's 07 6MT runs in slightly hotter conditions(she's stock). So your car is definitely running strong. On the other hand, if you're capable of trapping 78.5mph in the 1/8th, you should be capable of trapping 101mph flat in the 1/4. Where on the tach are you shifting from 3 to 4? Have you found the hard fuel cut in 3rd gear? You might be able to pick up another .5mph by stringing out 3rd a bit more. |
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Originally Posted by trey.hutcheson
Those two particular timeslips are interesting. The 1/4 ET's are within 32 thousandths of each other, and the 1/4 traps are off by 11 hundredths. The 1/8th mile ET's are also very close: less than 4 hundredths. But, the 1/8th mile traps are off by over 1.5mph. I find that odd. Either way, you picked it up on the big end.
Mid 78's in the 1/8th is right around what Cheryl's 07 6MT runs in slightly hotter conditions(she's stock). So your car is definitely running strong. On the other hand, if you're capable of trapping 78.5mph in the 1/8th, you should be capable of trapping 101mph flat in the 1/4. Where on the tach are you shifting from 3 to 4? Have you found the hard fuel cut in 3rd gear? You might be able to pick up another .5mph by stringing out 3rd a bit more. Here is a pass when I tried out shifting a little sooner (around 6500 rpms). |
Originally Posted by trey.hutcheson
Start a thread in the intake/exhaust section, and I'll be happy to respond.
https://g35driver.com/forums/showthr...=1#post2269007 I just posted a response and asked you a question about your different exhaust set ups on page 3. Interested to hear your feedback.... |
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