The STX thread!
#501
悪魔のR
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Right now I'm rocking the BHR Midpipe...well..I guess the Midpipe prototype since he is releasing the revised edition soon. So far, with a stock catback (HKS Hi Power single was still over 90DB at 75feet) everyone says the car sounds like stock with an extra growl, and with a Borla or something else put on as a test, car sounds amazing. Weighs something silly like 7lb..? That's just my 2 cents. Not sure what I plan to pair it up with next year... we'll see.
#502
Row faster, I hear banjos
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Right now I'm rocking the BHR Midpipe...well..I guess the Midpipe prototype since he is releasing the revised edition soon. So far, with a stock catback (HKS Hi Power single was still over 90DB at 75feet) everyone says the car sounds like stock with an extra growl, and with a Borla or something else put on as a test, car sounds amazing. Weighs something silly like 7lb..? That's just my 2 cents. Not sure what I plan to pair it up with next year... we'll see.
#503
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Chiketkd, I track and AX my 8. I have the HKS single side exhaust also. I wanted the cat out for the track, since the heat tends to destroy the cat material. But then needed the cat in for AX.
I bought an RP Supercat pipe from RX7Store, we cut the cat off and made a short section of straight pipe. We used V bands for quick disconnects.
http://www.amazon.com/OBX-Steel-V-Ba...6829654&sr=8-9
This way I can quick swap straight pipe / hi flo cat pipe with just 2 bolts. I can post pics if anyone wants to see.
I bought an RP Supercat pipe from RX7Store, we cut the cat off and made a short section of straight pipe. We used V bands for quick disconnects.
http://www.amazon.com/OBX-Steel-V-Ba...6829654&sr=8-9
This way I can quick swap straight pipe / hi flo cat pipe with just 2 bolts. I can post pics if anyone wants to see.
#504
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Interesting stuff. In my new class for next season, STX, I'll need to run a cat. I'd also like to run one one the street for environmental reasons, so a quick release change out like that wouldn't be necessary for my application.
FWIW, my 100cpi high flow cat is all-metallic and can withstand the heat a rotary dishes out! If the cat in your RP Supercat ever fails, shoot me a pm and I'll send you a link to where you can buy one.
FWIW, my 100cpi high flow cat is all-metallic and can withstand the heat a rotary dishes out! If the cat in your RP Supercat ever fails, shoot me a pm and I'll send you a link to where you can buy one.
#508
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For what it's worth, Charles has mentioned it's their intent to sell an STX legal version of the pipe but they need to ironout the issues with their fabricator and the resonator first. Oh, and they have to select a Cat... I think he mentioned picking between a $100 one and a $500 one...
#509
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Well, I'm not a fan of buying more than I need. Only reason I'm considering a mid-pipe with a resonator is b/c I want add a header and I want to be sure my car isn't too loud afterwards. Otherwise, I would just get a catless midpipe, add the high-flow cat and call it a day.
#510
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Well, I'm not a fan of buying more than I need. Only reason I'm considering a mid-pipe with a resonator is b/c I want add a header and I want to be sure my car isn't too loud afterwards. Otherwise, I would just get a catless midpipe, add the high-flow cat and call it a day.
So, i'd say get the rx7store pipe, the RB "medium" resonator and have somebody mimic my configuration using that great davesport cat you've got sitting there. Great power, not too loud, and reasonably light. It's tempting to forgoe the resonator to save weight but it seems noise levels are becoming a bigger issue at nats. The locals complained this year.
#512
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I still have my el-cheapo 17" Hot Wheels. They look cool and I get some great comments (Ron Bauer told me, when he was the starter one day, that he wanted to turn my car upside down to see what kind of car it was) but they are 4 lbs too heavy, or 1" too small, depending on how you look at it.
Given that I was .65 secs off Bryce on the east course at nats, I'm seriously thinking of going 18s next year. Heck, if you believe Jason's testing, if I had just switched to Dunlops I would have been FTD that day. I know it's not that simple, and those last fews tenths can come slowly (and expensively!) but I'm close enough now that I'm really starting to sweat the details. I just have to decide how many pairs of shoes it's worth...
Given that I was .65 secs off Bryce on the east course at nats, I'm seriously thinking of going 18s next year. Heck, if you believe Jason's testing, if I had just switched to Dunlops I would have been FTD that day. I know it's not that simple, and those last fews tenths can come slowly (and expensively!) but I'm close enough now that I'm really starting to sweat the details. I just have to decide how many pairs of shoes it's worth...
#514
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I'm glad I don't have to make a decision for another 3-4 months...
#515
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George
#516
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Exactly. That's why I said "probably." Clearly, the Toyos are fast on the ST cars at Lincoln. I've heard people complain about them overheating on heavier cars, but I never had that problem (but then I've never run them over 90 degrees ambient). And my treadwear is dead-even. So I do wonder if the spread Jason reported is valid at Lincoln.
#517
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Absolutely not, we even say so in the story. Those results are only valid for that track, that car, on those days. Different surface, different car, different time of year - even a different driver - will all yield different results.
I would have loved to do the test on concrete, but that stuff is in short supply (for our needs) in socal.
Based on the lack of any OPR on our tires, I am sure curious as to why they were so good on asphalt, but were not soft enough to pick up anything.
I would have loved to do the test on concrete, but that stuff is in short supply (for our needs) in socal.
Based on the lack of any OPR on our tires, I am sure curious as to why they were so good on asphalt, but were not soft enough to pick up anything.
#519
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Educate me on "Scrub Radius"...
In my quest for STX wheels I'm currently trying to decide how much of a negative impact an extra 20mm of scrub radius would have on the steering and handling of the car (one wheel is +55et, the other is +35et)? Conversely, would the extra 40mm in track on the +35et wheel outweigh any negatives?
FWIW, both wheels fit under the fenders and wouldn't increase the overall 'width' of the car on course.
FWIW, both wheels fit under the fenders and wouldn't increase the overall 'width' of the car on course.
#520
#521
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I remember from a post of yours a few months earlier that you picked up a set of those +55et SSR's. I'm just trying to understand the advantage/disadvantage of the +55et over the +35et...
Last edited by chiketkd; 11-02-2009 at 08:25 AM.
#525
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Not sure if the +35mm offset Chike mentioned is a 17" wheel or not...
I just picked up a set of +35mm 17x9 RP-F1s for STX next season. Same size and offset as the FN01RC track wheels I've been running for the last two years. I honestly think the 17/255 vs 18/265 difference is going to be negligible at best, and with a baby on the way I can't justify the added expense for 18" wheels/tires. Besides, I'm still not convinced the 18s are the best option, money no object.
FWIW, +35 17x9 with 255/40-17 RA-1s/R888s fit under all four of my fenders without any massaging at all.
I just picked up a set of +35mm 17x9 RP-F1s for STX next season. Same size and offset as the FN01RC track wheels I've been running for the last two years. I honestly think the 17/255 vs 18/265 difference is going to be negligible at best, and with a baby on the way I can't justify the added expense for 18" wheels/tires. Besides, I'm still not convinced the 18s are the best option, money no object.
FWIW, +35 17x9 with 255/40-17 RA-1s/R888s fit under all four of my fenders without any massaging at all.