Well, it looks like the car is out of the bag, so I'll post the info here too. John just finished dynoing his header and full 2.5 exhaust, on a basically bone stock ITR (VAFC was the only other mod). Here's the email I received from him directly:

Hello Mike
Here are results

______________Stock________________HyTech_______
__________HP_____Torque________HP________Torque
4,000______70_______94__________79_________106
4,500______89______104__________99_________115.5
5,000______96______102_________109_________114.2
5,500_____114______109_________126.5_______120.5
6,000_____121______107_________148.3_______129.4__ _Peak torque gain 22.4 lbs!
6,500_____145______117_________155.8_______126.1
7,000_____153______115_________166_________125.1
7,500_____167______117_________178.4_______125.7
8,000_____169______112_________187_________123.6__ _Peak HP gain 18!
8,500_____164______103_________184_________114.3 Max gain 20!


This was with the full exhaust and Apex controller only. Stock intake system also
John

and the link to his post on the Endyn board:
http://ferrari.colowatch.com/php/sho...sb=5&o=0&part=

Mike


[Modified by TypeR_126, 8:18 AM 7/21/2001]


[Modified by TypeR_126, 8:25 AM 7/21/2001]


[Modified by TypeR_126, 8:26 AM 7/21/2001]


[Modified by TypeR_126, 8:27 AM 7/21/2001]


[Modified by TypeR_126, 8:28 AM 7/21/2001]

 

Holy crap!

I've seen dyno's of people with toda b's not making that much!

 

Where's the graph? Until we see a graph we will skeptical to believe your results If they are true and I'm not doubtin, those are impressive gains.

 

Not a graph, but this is what they have.

 

Excuse me everyone, I have a special pass to the front of the line...please step aside, excuse me, coming through.

Anyone have any pics?

 

WHOA!! very nice, well worth the $ for the header, if these #'s are correct.

Bryan

 

169/117 on a stock R is already a strong motor ..... it took me intake, Comptech 4-2-1 and Comptech cat back to get 170/120 .......

Very nice!! One of "the two" is getting my business for the header for the B16 swap into the hatch, just not sure who yet .......

 

Whoa, where can we buy these headers?

 

Wait a second..

What was actually done to the car?
- HyTech zero restriction 2-1/2" exhaust or the stock ultra restrictive system?
- Stock ultra restriction CAT or test pipe?
- Stock intake with stock filter or K&N filter?

My point is that these numbers are not necessarily coming from the header alone! I'm not knocking the headers effectiveness but lets not fool our selves into thinking that some guy who buys the header will simply bolt it on to a stock car and realize these gains. I would not be surprised if other JDM style headers given the same conditions come close to these results. Others have realized similar numbers with the stock cams and timing before with different headers.

All the facts please!

I will add that if the car is running with the stock exhaust and CAT then these numbers are very impressive!

Regards,

 

I was on the website for HyTech and I was wondering if this was the Honda Street or the Honda Drag Header?

 

i will take these #'s any day of the week from an I/H/E combo.......

Bryan

 

My thoughts exactly, they probably spent a lot of time tuning to get these numbers..Don't be misled people.

 

It was definitely the full exhaust. It even says so in the first post. That also means it is probably either a test pipe or a high flow cat (I would guess test pipe). STill those numbers are pretty damn good.

 

Yes they are great numbers, and I hope my car will be there soon... But where are they coming from?

To be honest I would have hoped that HyTechs full exhaust with engine tuning would have put it in the 190s. Lets not forget all the incredible claims that have been made about this header and that for me up in Canada the header alone would cost over $2300!

Regards,

 

It would put it in the 190's with an intake.Pretty much all of us have one.My car made 175.9 with an intake I made.I wonder what this exhaust would do for a car with an intake also?I also wonder what the price will be.I talked to John a while back about his exhaust system header combo.He left me with impression that he was going to be using a cat and the full kit header back was going to be nearly $2k.

 

what's great is that it made power all across the board without suffering any power across the powerband

Hitech =

 

That's for a stock R motor...wow!

 

I wonder if they used the twin loop design muffler? and is that better then the indy lite muffler that someone on HT had?

 

Well, we aren't sure, it'd be nice if Hytech actually posted what was done to the car. The fact that he didn't say what tuning and other add-ons have been done makes me skeptical.

 

Ok so has anybody else put this part on the dyno yet? I mean other than factory HyTech numbers?

 

Like I said, I want to see some pics. Has John posted anything anywhere other than the very old pics on the website?

 

...that this run was with John's header/HF cat/exhaust on a bone stock R, and tuned on a dyno with a V-AFC... and not one damn mod more... If what I've been told is true(and a believe it may be), very damn impressive...

 

I just called John at Hitech and he said the car is a stock 2000 ITR. The only things that were added are the header, HF cat, and the twin loop muffler. It was tuned on a 'Clayton' dyno. (Does anyone know what the difference is?)

 

Whats the url for Hitech?

 

I say congratulations to them for a good product, but with a word of warning to all...

Let's all look back and the other various "amazing" things that have happened in the last year. First we had the whole Jackson Racing kit which many reputable people said was amazing, and now most will tell you the JRSC is crap. Next would be the whole Endyn fiasco; regardless of what is true and what isn't I think most will admit that there was a lot of hype and the actual facts were few and far between in terms of performance numbers.

I think it will be at least a month or more until we can actually say that with these mods using Hytech products that other stock R's with "tuning" will see these numbers as well.

My two cents