Hondata RSX

The rsx uses a K20A...not C. The type s also has an 11.1 compression. I don't think the blocks are the same either. I know the F20 has a short strock. The new accord/elements/crv's all come with a 2.4L iVTEC, and the block bolts right up to the K20.

As I already stated many times, After thousands of hours on the dyno, Hondata found 5200rpm to be the best rpm. They lowered the VTEC by 600rpm......They didn't just lower it though, it has been tuned to work best at the rpm. If you look at a hondata rsx dyno, the power curve is very smooth.

The rsx is not "the new civic"....I still see far more civic and integras out there. The reason they are making parts for the rsx is because the K20 is turning out to be a tuners dream. With 800 bucks (intake and hondata) you can completely change the car (the motor anyway). The s2000 just doesn't respond well to mods.

Glhboy
If your friend knows how to drive, you shouldn't stand a chance now. He should even be able to hang with you down low.
 
APEXiTypeS said:
The rsx uses a K20A...not C. The type s also has an 11.1 compression. I don't think the blocks are the same either. I know the F20 has a short strock. The new accord/elements/crv's all come with a 2.4L iVTEC, and the block bolts right up to the K20.

As I already stated many times, After thousands of hours on the dyno, Hondata found 5200rpm to be the best rpm. They lowered the VTEC by 600rpm......They didn't just lower it though, it has been tuned to work best at the rpm. If you look at a hondata rsx dyno, the power curve is very smooth.

The rsx is not "the new civic"....I still see far more civic and integras out there. The reason they are making parts for the rsx is because the K20 is turning out to be a tuners dream. With 800 bucks (intake and hondata) you can completely change the car (the motor anyway). The s2000 just doesn't respond well to mods.

Glhboy
If your friend knows how to drive, you shouldn't stand a chance now. He should even be able to hang with you down low.

See, I don't know much about the RSX. But since you are getting testy about things.
I don't think the blocks are the same either. I know the F20 has a short strock. The new accord/elements/crv's all come with a 2.4L iVTEC, and the block bolts right up to the K20.
The stroke has nothing to do with the block. The stroke involves the crankshaft. And what do you mean by the block bolts right up to the K20? That's just confusing. It sounds to me like you said the engine form the accord/elements/crv's bolt up to the K20 block? That just doesn't make sense.

And when you are talking about the Vtec engagement lowering, you have just showed me your experience level. The "perfect" vtec engagement point will be different between the S2000 and the RSX. They are different cars with differently setup engines. Can you really not understand that? It's a pretty simple concept to grasp. And for your info, the best engagement point on an S2000 is around 5800rpm.

And sorry to burst your bubble, but the RSX is the new civic when it comes to parts manufacturers building parts for it. There is just as high of a demand for aftermarket mods for RSX's as there are for civics. The main difference is that for civics, the parts are usually low quality and don't produce much power, (except for turbo kits). But they also know the RSX's are owned by people that want better quality and better parts. They know that people that pay more than $25,000 for their car are going to expect more. This is why a turbo kit for an S2000 costs over $5000 for a simple turbo kit. A cat-back exhausts can cost over $2000. A mugen intake costs like $1400. But they know that people that pay $32,000 for their car will pay these prices.

Like I said, I'm not downplaying the RSX by saying it's the new civic, but it is because so many people are modding them, so the demand for quality parts is high.
 
The S2000 doesn't respond well to NA mods at all. At least what most people have done so far. You can spend $8000 and get 40hp. But not many companies have focused on NA mods. The only companies that have are in Japan. Toda is now finally releasing their NA mods for the S2000 after it's been out for 5 years. There is one guy in CA that has just installed ITB's and he's still tuning it, but he's saying it should dyno at around 250+ to the wheels. That's why I said the power from the RSX is in the head. That's what makes it different from the S2000. But the S2000 responds very well to FI mods like the Vortec and Comptech, and various turbo kits. The Vortec on an otherwise stock S2000 brings the hp to just under 300hp to the rear wheels. Ad a few things such as header, exhaust, smaller pulley, and you will be at around 350rwhp. And that's RELIABLE horsepower. Many people with the superchargers have over 50,000 miles on thiers with no problems.
 
big_ben said:
See, I don't know much about the RSX. But since you are getting testy about things.

The stroke has nothing to do with the block. The stroke involves the crankshaft. And what do you mean by the block bolts right up to the K20? That's just confusing. It sounds to me like you said the engine form the accord/elements/crv's bolt up to the K20 block? That just doesn't make sense.

And when you are talking about the Vtec engagement lowering, you have just showed me your experience level. The "perfect" vtec engagement point will be different between the S2000 and the RSX. They are different cars with differently setup engines. Can you really not understand that? It's a pretty simple concept to grasp. And for your info, the best engagement point on an S2000 is around 5800rpm.

And sorry to burst your bubble, but the RSX is the new civic when it comes to parts manufacturers building parts for it. There is just as high of a demand for aftermarket mods for RSX's as there are for civics. The main difference is that for civics, the parts are usually low quality and don't produce much power, (except for turbo kits). But they also know the RSX's are owned by people that want better quality and better parts. They know that people that pay more than $25,000 for their car are going to expect more. This is why a turbo kit for an S2000 costs over $5000 for a simple turbo kit. A cat-back exhausts can cost over $2000. A mugen intake costs like $1400. But they know that people that pay $32,000 for their car will pay these prices.

Like I said, I'm not downplaying the RSX by saying it's the new civic, but it is because so many people are modding them, so the demand for quality parts is high.

I wasn't getting "testy", just trying to make sure you have the right info.
The new accord/elements/and crv block bolts up to a K20 head.
I didn't say anything about the s2000's vtec, I was only talking about the rsx working best at 5200rpm.
 
APEXiTypeS said:
I wasn't getting "testy", just trying to make sure you have the right info.
The new accord/elements/and crv block bolts up to a K20 head.
I didn't say anything about the s2000's vtec, I was only talking about the rsx working best at 5200rpm.
Then I guess I just took what you typed the wrong way. Sorry. I also never said anything about the vtec of the RSX. I was talking about what I knew, the vtec of the S2000. I don't really know much about the RSX, so I wouldn't try to say something I didn't know.

About the K20 head matching up with the other motors, that's pretty cool. I wish it would mate up to the F20 motor. Does the K20 use a timing belt or chain? The F20 uses a chain for extra strength at high rpm. If the S2000 had the iVTEC, it would probably gain an extra 10 to 15hp from it. Mainly and most importantly, it would gain some torque from it. But NA tuning in the S2000 is too expensive for me. I plan on getting the Vortec supercharger and building my own FMIC setup and getting a smaller pulley to have 10psi instead of 7psi and getting around 320 to 350hp. You can supercharge the S2000 for about $4000 total. That beats the hell out of trying for NA and spending upwards of $10,000 and then not even getting the same power.
 
What gear were you in on your gauges in your sig? It looks like you are at or near max rpm and only at 125mph. I don't know about the gearing of the RSX, but the S2000 does about 90mph @9000rpm in 3rd gear. Top speed is around 160mph in 6th gear. But some people have been to around 170+mph in 6th. Thats just too fast for me. Too scary. I've been to 155mph, and it's just insanely loud and scary. I can't get the thought out of my head of blowing a tire at that speed. So then I slow down and 95 seems like a crawl.:D
 
now i'm hoping hondata will do a reflashed TSX ecu as we already have a cai on my wife's car and it makes a big difference in power
 
big_ben said:
I also never said anything about the vtec of the RSX. I was talking about what I knew, the vtec of the S2000. I don't really know much about the RSX, so I wouldn't try to say something I didn't know.

That is why I was not talking about the s2000. I don't know nearly enough about tuning an s2000 to make any kind of arguement, so I just don't.

big_ben said:
About the K20 head matching up with the other motors, that's pretty cool. I wish it would mate up to the F20 motor.

There are many different choices that are being made avaliable to K20 owners. So far the results have been everything we can hope for.


big_ben said:
Does the K20 use a timing belt or chain? The F20 uses a chain for extra strength at high rpm.

The RSX uses a belt.


big_ben said:
If the S2000 had the iVTEC, it would probably gain an extra 10 to 15hp from it. Mainly and most importantly, it would gain some torque from it.

The "i" in i-VTEC is mainly for better tq curves then anything else.

big_ben said:
But NA tuning in the S2000 is too expensive for me. I plan on getting the Vortec supercharger and building my own FMIC setup and getting a smaller pulley to have 10psi instead of 7psi and getting around 320 to 350hp. You can supercharge the S2000 for about $4000 total. That beats the hell out of trying for NA and spending upwards of $10,000 and then not even getting the same power.


I have driven the Vortec supercharged s2000 a couple time. It does have a nice pull from 2000rpms on up, but I'm all motor guy.
 
jaje said:
now i'm hoping hondata will do a reflashed TSX ecu as we already have a cai on my wife's car and it makes a big difference in power

Your going need some luck for that. Might want to start sending Hondata some emails. The TSX ecu is a completely different ecu, which means starting from scratch all over again. It took Hondata about a year to crack the ecu on the RSX, with Honda engineers working with them. They only way they will put that much time into another car (like the tsx) is if they KNOW there is a high demand for it. So start bugging them:D
 
big_ben said:
What gear were you in on your gauges in your sig? It looks like you are at or near max rpm and only at 125mph.

Thats 4th gear. Right after I took the picture I hit the rev limiter. Before Hondata my rev limiter was set at 8100rpms, which took me to about 117 in 4th.
 
APEXiTypeS said:
Your going need some luck for that. Might want to start sending Hondata some emails. The TSX ecu is a completely different ecu, which means starting from scratch all over again. It took Hondata about a year to crack the ecu on the RSX, with Honda engineers working with them. They only way they will put that much time into another car (like the tsx) is if they KNOW there is a high demand for it. So start bugging them:D
i already have...they said they are in the works as the tsx's engine is a formiddable powerplant and has lots of potential...in fact a tsx won its class at the 25 hours of thunderhill in its class all of which included m3s and other high powered cars
 
Black Majik MSP said:
Burn: I had no idea it took that long or that much effort to crack the ECU. I guess that explains why we have no software as there is nowhere near as much demand.

Ever stop and think why Hondata was the ONLY tuner to crack the ecu? If you don't use Hondata you have to use a stand alone.:rolleyes:
 
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