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S2000 STR prep resource

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Old Jul 6, 2011 | 06:05 AM
  #4211  
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Originally Posted by josh7owens
Can you say low low 2500lbs CR delete? I think so! If the difference is really 99lbs a prepped CR delete should weight that. I'll be quite thou because I want one!
I think everyone should weigh thier cars same scales, same day to end all this speculating. I have documented the differences in b-stock, this claim is outside those findings.

-marc
Old Jul 6, 2011 | 06:18 AM
  #4212  
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Originally Posted by sirbunz
Originally Posted by josh7owens' timestamp='1309954917' post='20750876
Can you say low low 2500lbs CR delete? I think so! If the difference is really 99lbs a prepped CR delete should weight that. I'll be quite thou because I want one!
I think everyone should weigh thier cars same scales, same day to end all this speculating. I have documented the differences in b-stock, this claim is outside those findings.

-marc
I agree. I would be very interested in doing this at Nationals if we can arrange it. I would be easy enough too since all the cars are the same wheelbase anyway.
Old Jul 6, 2011 | 06:31 AM
  #4213  
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Originally Posted by ViperASR
Originally Posted by IntegraR0064' timestamp='1309899817' post='20748951
So for you guys that are using flashpro - are you using one of the preinstalled tunes or did you actually have it dyno tuned? If you chose to get it dyno tuned, do you feel like you got your money's worth?
I had Mase tune mine with just a HFC and catback, and I picked up ~20whp over the Toda tune. I put down 220 peak on his dyno with a heatsoaked motor (had been running on the dyno most of the time). Thats with the stock header and just a drop in K&N filter.
Mase played with the car for around 2 hours, and my VTEC isn't set nearly as low as some of the people here (I want to say 5400), but I'm willing to bet I'm making more midrange power. We talked about the VTEC point, and with my setup, there was no power to be gained by lowering it. VTEC comes in stupid smooth, as there is no jump on the dyno curve, or any butt indication that VTEC just kicked in yo. It makes the car much better and smoother to drive.

I deff think I got my money's worth, especially as Mase is one of the best Honda tuners around, and happens to be a short drive from me. If I were you, I would ask around for tuners familier with Flashpro and get it tuned by someone with a good reputation. If you are anywhere close to Jacksonville Fl, its well worth the drive to see Mase.

Also, look into the soft rev limiter that Gernby talks about. It allows you to ride the limiter, as opposed to bounce on and off it. It also prevents over-running the motor too bad. I've got my limiter set at 8300, and it barely touchs 8400 on my datalogs. 8500+ is too rich for my blood.
Wow, thanks for all the detail. I didn't think you'd gain that much, so that definitely helps decide. I've got Evans tuning 2 hrs from me, so that's probably the way to go.
Old Jul 6, 2011 | 07:16 AM
  #4214  
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Originally Posted by IntegraR0064
Originally Posted by ViperASR' timestamp='1309956633' post='20750942
[quote name='IntegraR0064' timestamp='1309899817' post='20748951']
So for you guys that are using flashpro - are you using one of the preinstalled tunes or did you actually have it dyno tuned? If you chose to get it dyno tuned, do you feel like you got your money's worth?
I had Mase tune mine with just a HFC and catback, and I picked up ~20whp over the Toda tune. I put down 220 peak on his dyno with a heatsoaked motor (had been running on the dyno most of the time). Thats with the stock header and just a drop in K&N filter.
Mase played with the car for around 2 hours, and my VTEC isn't set nearly as low as some of the people here (I want to say 5400), but I'm willing to bet I'm making more midrange power. We talked about the VTEC point, and with my setup, there was no power to be gained by lowering it. VTEC comes in stupid smooth, as there is no jump on the dyno curve, or any butt indication that VTEC just kicked in yo. It makes the car much better and smoother to drive.

I deff think I got my money's worth, especially as Mase is one of the best Honda tuners around, and happens to be a short drive from me. If I were you, I would ask around for tuners familier with Flashpro and get it tuned by someone with a good reputation. If you are anywhere close to Jacksonville Fl, its well worth the drive to see Mase.

Also, look into the soft rev limiter that Gernby talks about. It allows you to ride the limiter, as opposed to bounce on and off it. It also prevents over-running the motor too bad. I've got my limiter set at 8300, and it barely touchs 8400 on my datalogs. 8500+ is too rich for my blood.
Wow, thanks for all the detail. I didn't think you'd gain that much, so that definitely helps decide. I've got Evans tuning 2 hrs from me, so that's probably the way to go.
[/quote]

I'm just getting into tuning on my car and so far the instant gains are from the off-the-shelf lowered VTEC/timing maps (stock tuned in Hondata-speak) if you are running a stock cat. It runs the car with a richer AFR, more timing (doesn't do anything on the dyno), picks up a nice hunk from a lower VTEC cross-over (this is your +20 gain), and a raised rev limiter. I've ascertained the rest of the gains will come from the HFC and a retune but I haven't verified that yet.

Since the S2000 is speed density, any part you put on the car could benefit from tuning so plan your tuning around the big volumetric efficiency mods like intakes, headers, and cats. If you increase the airflow, the car will run leaner (and in typical Honda fashion, make more power). I should have my car on the dyno again at the end of this week to verify the tune now that I've added a cat-back.
Old Jul 6, 2011 | 07:42 AM
  #4215  
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Originally Posted by Johnx
Here is a nice list of specs comparing the 08 standard and CR models...

http://www.honda.com/newsandviews/article.aspx?id=4094

With the top off, and I presume no A/C or music, the difference is 99 lbs.
The weight for the standard car includes the spare tire and tools. The CR doesn't have those. They can be removed for competition. The effective weight difference is less than 99 pounds by the weight of those pieces.
Old Jul 6, 2011 | 08:11 AM
  #4216  
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Originally Posted by Johnx
Here is a nice list of specs comparing the 08 standard and CR models...

http://www.honda.com/newsandviews/article.aspx?id=4094

With the top off, and I presume no A/C or music, the difference is 99 lbs.

All else being equal, I would say advantage CR.

John
The OEM CR tires are actually 2 lbs heavier per corner (according to Tire Rack), so that's another 8 lbs. of weight reduction, and 2 lbs. for the slightly larger sway bars that get tossed. So technically 109 lbs. of potential weight difference.

Hard to argue that 100+ lbs. isn't a significant advantage. I'm just a spectator here, but I'm looking forward to seeing the scales at nationals. STR is an interesting class to watch.

EDIT: ^John is right. So it's 108 lbs. less the oem tools and tire. 85 lbs net?
Old Jul 6, 2011 | 09:31 AM
  #4217  
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For those of you who want to weigh your cars, keep in mind that at national events, the scales are often off limits to cars that don't need to be weighed for their class. At the spring nationals, I was told they were not courtesy weighing any cars.
Old Jul 6, 2011 | 10:49 AM
  #4218  
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Originally Posted by imstimpy
I'm just getting into tuning on my car and so far the instant gains are from the off-the-shelf lowered VTEC/timing maps (stock tuned in Hondata-speak) if you are running a stock cat. It runs the car with a richer AFR, more timing (doesn't do anything on the dyno), picks up a nice hunk from a lower VTEC cross-over (this is your +20 gain), and a raised rev limiter. I've ascertained the rest of the gains will come from the HFC and a retune but I haven't verified that yet.

Since the S2000 is speed density, any part you put on the car could benefit from tuning so plan your tuning around the big volumetric efficiency mods like intakes, headers, and cats. If you increase the airflow, the car will run leaner (and in typical Honda fashion, make more power). I should have my car on the dyno again at the end of this week to verify the tune now that I've added a cat-back.
The +20 was from the TODA Hondata tune vs Mase's tune. I think the TODA was way too rich with the HFC, so it wasn't quite getting it done. We never dynod the car on the stock tune, kinda forgot to.
Old Jul 6, 2011 | 10:51 AM
  #4219  
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Originally Posted by robinson
For those of you who want to weigh your cars, keep in mind that at national events, the scales are often off limits to cars that don't need to be weighed for their class. At the spring nationals, I was told they were not courtesy weighing any cars.
Only during competition when cars need to be weighed. We were able to do this last year working around tech's schedule.

-Marc
Old Jul 6, 2011 | 10:56 AM
  #4220  
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Originally Posted by sirbunz
Originally Posted by robinson' timestamp='1309973467' post='20752012
For those of you who want to weigh your cars, keep in mind that at national events, the scales are often off limits to cars that don't need to be weighed for their class. At the spring nationals, I was told they were not courtesy weighing any cars.
Only during competition when cars need to be weighed. We were able to do this last year working around tech's schedule.

-Marc
Cool!



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