View Poll Results: Do you plan to SC?
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Do you plan to SC?
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From: Port Washington
I do believe that their revised MAP sensor on the throttle body addresses this known issue...
Personally, part of the fun of the supercharger is the installation and the wealth of information I get when performing a mechanical install...
BTW Comptech's documentation and parts kit is exceptionally detailed + complete... I ocassionally lose my place when reaching for that beer (which of course is no fault of Comptech)
Personally, part of the fun of the supercharger is the installation and the wealth of information I get when performing a mechanical install...
BTW Comptech's documentation and parts kit is exceptionally detailed + complete... I ocassionally lose my place when reaching for that beer (which of course is no fault of Comptech)
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Has anyone obtained before/after 0-60, 1/4 mile results yet?
It sounds like the car would actually be slower 0-60 without that Map sensor tweak. OEM level driveability without side effects is very tough to achieve with mods in this category. A suitable fully programmable engine managment system and related changes would help driveability factors and possibly permit even more go. Pricey though and they don't program themselves - not fully anyway. That may be why this kit doesn't use one. It seems like the FPR-and-no-ECU-mods strategy is just asking for driveability issues in different driving and weather conditions. I may be wrong, but I don't think that any factory turbo or supercharger motors rely solely on such an approach. Perhaps for good reason. I see that Link makes drop-in programmable units for other Hondas and that other companies like Hondata know their way around so there is likely to be some easy to install 'puters in the near future.
Having programmed aftermarket 'puters on different cars I can tell you that in my experience getting good WOT performance is surprisingly easy and not super time consuming. But good driveability is HARD to achieve. Dyno testing is not enough. Lots of driving under different conditions is needed. Things like data loggers help immensely.
If I had a SCed S2K I'd probably want to have a few extra gages such as A/F, EGT, oil temp among others. Especially if you want to do driving schools and the like since they involve long periods at high rev high load. You probably should use excellent oil (and change it frequently) and warm up the engine thoroughly before blasting around.
Stan
[Edited by E30M3 on 02-09-2001 at 08:50 AM]
It sounds like the car would actually be slower 0-60 without that Map sensor tweak. OEM level driveability without side effects is very tough to achieve with mods in this category. A suitable fully programmable engine managment system and related changes would help driveability factors and possibly permit even more go. Pricey though and they don't program themselves - not fully anyway. That may be why this kit doesn't use one. It seems like the FPR-and-no-ECU-mods strategy is just asking for driveability issues in different driving and weather conditions. I may be wrong, but I don't think that any factory turbo or supercharger motors rely solely on such an approach. Perhaps for good reason. I see that Link makes drop-in programmable units for other Hondas and that other companies like Hondata know their way around so there is likely to be some easy to install 'puters in the near future.
Having programmed aftermarket 'puters on different cars I can tell you that in my experience getting good WOT performance is surprisingly easy and not super time consuming. But good driveability is HARD to achieve. Dyno testing is not enough. Lots of driving under different conditions is needed. Things like data loggers help immensely.
If I had a SCed S2K I'd probably want to have a few extra gages such as A/F, EGT, oil temp among others. Especially if you want to do driving schools and the like since they involve long periods at high rev high load. You probably should use excellent oil (and change it frequently) and warm up the engine thoroughly before blasting around.
Stan
[Edited by E30M3 on 02-09-2001 at 08:50 AM]
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From: You wish
Hondata has the S2K on their list of projects, but probably won't get to it for at least 6 months. Companies like Hondata and Zdyne would really be the ultimate solution for this application because they retain the stock ECU system, sensors, etc. and simply add boost tables to the existing maps. This eliminates most drivability concerns (unlike tuning say a MOTEC or Electromotive TecII system), with the possible exception of acceleration enrichment on boost tip in, but that's more an issue with Roots type blowers than it is with Centrifugal chargers or turbos. Having experienced and/or tuned both these systems I think they are wonderful.
I too am aware of no factory offerings that don't use the ECU to control fuel and timing under boost, with the exception of the Toyota sanctioned TRD aftermarket kits. The problem is twofold. First, a forced induction timing curve really doesn't look much like that of a high strung normally aspirated car. Forced induction masks much of the resonance effects in the intake manifold which necessitate increases and decreases in ignition timing to create a smooth torque curve. Second, fuel needs are not necessarily linear with boost, which is what using a boost dependent FPR assumes.
To Stan's list of gauges I would add a _real_ water temp gauge, as adding 50% more hp and more intake temperature is asking a lot of the stock cooling system. Drive the car at a hot track (high altitude doesn't help cooling efficiency either) and follow behind another car for a lap or two and you could have serious cooling problems (I'd just assume it would be an issue an add a radiator and oil cooler for safety's sake).
UL
I too am aware of no factory offerings that don't use the ECU to control fuel and timing under boost, with the exception of the Toyota sanctioned TRD aftermarket kits. The problem is twofold. First, a forced induction timing curve really doesn't look much like that of a high strung normally aspirated car. Forced induction masks much of the resonance effects in the intake manifold which necessitate increases and decreases in ignition timing to create a smooth torque curve. Second, fuel needs are not necessarily linear with boost, which is what using a boost dependent FPR assumes.
To Stan's list of gauges I would add a _real_ water temp gauge, as adding 50% more hp and more intake temperature is asking a lot of the stock cooling system. Drive the car at a hot track (high altitude doesn't help cooling efficiency either) and follow behind another car for a lap or two and you could have serious cooling problems (I'd just assume it would be an issue an add a radiator and oil cooler for safety's sake).
UL
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From: Manuel Antonio
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>>>Companies like Hondata and Zdyne would really be the ultimate solution for this application because they retain the stock ECU system, sensors, etc. and simply add boost tables to the existing maps<<<
Same with Link Electrosystems out of New Zealand...pull the factory box and directly plug in the replacement 'puter. It even partially self tunes based upon zone a/f goal seeking and starter maps. On the road again fast. Not available for S2k yet though. The Mazda and Subie guys have been using them for years. They have some direct plug in Honda ECUs for Integras now.
Stan
Same with Link Electrosystems out of New Zealand...pull the factory box and directly plug in the replacement 'puter. It even partially self tunes based upon zone a/f goal seeking and starter maps. On the road again fast. Not available for S2k yet though. The Mazda and Subie guys have been using them for years. They have some direct plug in Honda ECUs for Integras now.
Stan
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From: You wish
Shaner, what you would like sounds like a Zdyne (www.zdyne.com) unit. Very simple laptop programmable on the fly, even with the engine running. They've talked about making it Palm Pilot friendly too, but I don't know if that has happened yet. Hondata takes a slightly different approach and requires you to burn a new chip, but they allow datalogging and some in car programming using things like the horn switch or cruise control button (you can actually select rev limits, etc. on the fly). I don't know as much about the Link system, but it sounds similar. Both Hondata and Zdyne are located in SoCal now (Hondata is based at UPRD in Orange County and Zdyne is near Topanga Canyon in the valley).
As for your Mugen, nope, no easy way to program it unless you decode the maps and burn a new PROM, but even then it won't be able to sense boost without freaking as it has no provisions for it in the map tables (whereas the Zdyne and Hondata units do).
UL
As for your Mugen, nope, no easy way to program it unless you decode the maps and burn a new PROM, but even then it won't be able to sense boost without freaking as it has no provisions for it in the map tables (whereas the Zdyne and Hondata units do).
UL
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From: Los Angeles
I've seriously considered SC'ed mine but since i don't plan on spending time too much time at the tracks, i've spent the $$ mostly on int. and ext. mods because, street performance wise, the only thing that i've wanted to outgun and couldn't was a 996 Turbo... That was fun but wasn't even close. Improving your driving skills is also a cheap way to help performance. At tracks, you'll often see riced up, SC-ed cars get beat up by lesser cars with better drivers.
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Joined: Jan 2001
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From: Phoenix
I don't know what is going on with other cars but my car has had no hesitation or "stumbling" problems at all. My car drives almost exactly like it did before but only much faster. The other car (no names) should be checked over by someone who knows Honda and Comptech. My suspicion is an install complication or error.
For those interested in 3K miles no cooling problems or oil consumption. The car just had its 10K service and no problems found. Comptech makes one heck of a product. No I don't work for them nor do I have any vested interest in the company. I'm just very impressed.
For those interested in 3K miles no cooling problems or oil consumption. The car just had its 10K service and no problems found. Comptech makes one heck of a product. No I don't work for them nor do I have any vested interest in the company. I'm just very impressed.
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From: newport beach
Hi SCS2K
Now that's a great report! I don't think anyone is looking to find fault in the Comptech SC, it's just caution and a desire to do no harm in an effort to get more power.
Can I have a ride in yours?
Vrooom.
2x6spds
Now that's a great report! I don't think anyone is looking to find fault in the Comptech SC, it's just caution and a desire to do no harm in an effort to get more power.
Can I have a ride in yours?
Vrooom.
2x6spds