S2000 Under The Hood S2000 Technical and Mechanical discussions.

Inline Pro's Tuned Turbo S2000 Dyno Graph

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Old Apr 10, 2004 | 10:05 PM
  #21  
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Originally posted by RazorV3
kane is there something i'm not understanding about your avatar?
Sneak preview of the Olsen twins future as pornstars.
There was a thread about them in off topic a while ago and I thought it would be funny.
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Old Apr 10, 2004 | 10:37 PM
  #22  
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[QUOTE]Originally posted by white_S2000@16
i ran into a guy at my honda dealer, roaenthal honda. His name is sean i think i cant remember im real bad with names. Anywas he has this same kit installed he told me he was the second one to get it other then the owner. he offered me a ride when he gets off work which i will get one day i didnt have time that day. He told me he was making 320 at 7psi its a t3/t4 they run 2 specs of
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Old Apr 11, 2004 | 04:53 AM
  #23  
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He said that the second owner made 320 at 7 psi, which does not have the head gasket. You can guestimate that you lose about 1 point of compression per headgasket mm. I used a 1 MM head gasket on my car, and it lowered it about .8 points of compression. Using that math, he would be at 8.6:1 compression. This is certainly do-able, and would allow him to run more timing.

In addition, you can also guess that you are losing about 20 horsepower per point of compression drop. So you are at 240 flywheel stock, then go to 8.6:1 compression. 240 - (11 - 8.6) * 20 = 192 flywheel. Approx flywheel horsepower on this graph is 508, so the turbo kit is producing approx 316 hp.

Also, stock static fuel pressure is 40 psi. So (18 * 12) + 40 = 256 psi. We can assume that the fuel pump is dropping off at around 150 psi or so. The fuel map would be completely hosed, because up to around 8 psi ( 8*12+40=136) you have a huge surge in fuel pressure, and then you have no fuel pressure increase from 8 psi to 18 psi.

The fact that you don't have any timing control indicates to me that the car is initially running around 33-35 degrees of timing at 18 psi, which is re-GD-diculous. This also indicates that the car is running off of the knock sensor, which is AKA a slow death for the motor.

I assume that the owner is looking at making a cheap kit that makes rediculous power so that he can resell it to other people. I think that this setup would be capable of around 340-350 rwhp with out being dangerous, and generally sellable to the masses. Even then, most people are not interested in installing head gaskets.

Provided that he used a proper engine management system rather than this hack, I would still be concerned about the longevity of the motor. I assume he is running this setup with the expectation that it's going to blow up? Or did he achieve the number and has since backed off the boost level? You won't be able to convince me that this setup will last with daily boosting to 18 psi.

Anyways, interesting development.

Chris
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Old Apr 11, 2004 | 09:46 AM
  #24  
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there is a video of this car on honda-tech . the only fishy thing is that the owner will only rev the car to 6k on the street through all the gears. he turns around and say it makes alot more power up top. well your making a video to promote your kit why dont you rev it all the way up hmmmmmm???? maybe because its 50/50 chance everytime you get on the car it may pop.

later


p.s. i would rather spend more money on a turbo kit that has some type of piggy back system our stand alone better to be safe then sorry.
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Old Apr 11, 2004 | 11:10 AM
  #25  
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kane the guy who made 320 i think his name was sean did NOT have the head gasget only the owner of inline pro does as it is iin the prototype phase,sorry if i wasnt clear in my post. as for the fuel lines the guy sean didi t him self not inline pro
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Old Apr 11, 2004 | 08:55 PM
  #26  
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Has anyone considered the effects of a 3mm thick headgasket causing the timing chain needing to travel another 6mm?

I thought the Vortech and Comptech SC's had sloppy fuel control, A 12:1 FMU, 625cc injectors, a VAFC with a Stock PCM. This is the worst I've heard of. Why don't you just put a Carburetor on it, You would have more control.

Using a FMU with big injectors is pointless. The whole purpose of bigger injectors is to be able to acurately control fuel, beyond the capacities of the stock injectors. Frankly, I'm surprised it actually starts when cold with 625cc injectors and the VAFC leaning out the MAP voltage.
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Old Apr 11, 2004 | 11:09 PM
  #27  
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Interesting thread
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Old Apr 12, 2004 | 06:44 AM
  #28  
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Rising rate FMU's are not a good idea with a turbo and this engine. Earlier this year I scrapped my FMU and installed bigger injectors and a FPR. The car has been running beautifully since.


What would happen if this car (Inline Pros car that is) was in VTEC at partial throttle with a rising rate FMU?
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Old Apr 12, 2004 | 07:55 AM
  #29  
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[QUOTE]Originally posted by Slows2k
Has anyone considered the effects of a 3mm thick headgasket causing the timing chain needing to travel another 6mm?
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Old Apr 12, 2004 | 03:25 PM
  #30  
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It will just push back on the cam chain tensioner a little bit more, I doubt this will affect anything..
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