I started tuning another ITR today. Hondata, high compression, spec C cams.
Dave brought his header by to see how it stacked up.
Before looking at the graph, keep in mind a couple things:

1. I only had a couple hours to do any tuning before the test, so this is
just a rough estimate of what the header is truly capable of. I believe
that had I had time to dial the motor in completely, that the header would
have shown more gain.

2. No tuning was done with the SMS header, just bolt on and go.

 

Whats the other header?

 

you're kidding right?

 

.....assuming the higher graphs are the sms header:

What did the a/f ratios do when you put the sms header on?

I'm willing to bet it got super lean from the sms and that adding more fuel will give even more power.

 

LOL.

Thanks for the graph. I really wanted to see something like this.(being an owner of a SMSP header and all...)

I just need to get off my lazy **** and install it...and everything else.

 

Speak of which where can I buy myself a SMSP Header, how much are they and how long will it take to get to me

 

nice

 

MUAHAHHAHHAHHAHAH. sorry, had one too many beers

 

Sorry Dave, wish I had kept my Spoon (or borrowed it) to see how it would have fared on my engine too. I am definately happy with the SMS header.


Jason

 

Haha. Yeah, I just wanted to say something to give everyone a laugh on this usually slow sat. night on H-T. Nice gains considering that it's still untuned.

 

what happened from 6700 to 7400 rpm on the Spoon header? The torque went south on a vacation trip for the winter.....and then it woke up again....

I think I have some ideas for Dave to try out in terms of angling the primaries to face the exhaust port and using a 1/8 in. larger diameter at the last step on the primaries. I'm not a big fan of removing the tranny mount though even though the CRV does not have one,....comparing to a CRV just makes me nervous. I think the one thing people miss saying about Dave's header is the ground clearance...you get lots of it. Those pictures of JDM ITR 4-1's being dented from cars bottoming out are not something I would wish on anyone, especially after spending over $900 US (or $1440 Canadian !!!!! the dropping $$ is killing me) on a header. Has anyone tried building a skid plate or undertray to prevent denting?

cheers

 

steve wassup man
no matter waht tho
it still shows a significant gain all over
5500 and 7k have a nice bump and its smoother looking
tweak it more
maybe I will have to get one soon
its just laziness that prevents me from crawling under the car again
jeez i still havent put in my new oilpan and its really dusty now

 

didnt read did you tuan.

Dont ask why because i cant tell you. I had all of about 2 hours to do
18 runs and swap headers(with dave's help). Was under a severe time
constraint and near the beginning things were moving backwards.

This is just a back to back test.

 

lol.

BTW nice #s for SMS

 

So the blue line is spoon and the red line is SMSP

j/k .... looks good, can you get the SMSP in Stainless and factory length?

 

2 things...

1.) Was the motor tuned when you had the Spoon header installed?

2.) Is it possible that tuning with the SMSP header will lead to minimal increase? On the same token, will tuning with the Spoon header yield a big enough increase to shadow the potential SMSP tuned dyno run?

I guess the only way to find out is tune the two bad boys, eh?


[Modified by CPR, 5:12 AM 2/3/2002]

 

Impressive! What compression ratio is the R motor running? Post some numbers when tuning is completed w/ both headers!


[Modified by ITRbroham, 2:51 AM 2/3/2002]

 

Sgt, your sense of humor makes me laugh!

Good test. I got very similar results with that test myself.

Jeff

 

Looks very good. I especially like that the torque and hp crossed over one another right where they where supposed to, something I can not say about some of the other "tests" I have seen where this pops up at 6900-7500. Good job SGT.

 

sgt-i was just wondering what kind of power you hope to get out of this car....this is just for a mental note for me

 

Hoping to make over 200hp with the spoon header. Though i have never tuned
a car with a spoon header, it may stop me......

I thought you guys might want to see this, this is how much power the car was
ACTUALLY making due to the cold air temp. Was fun driving it around

 

Steve will have to answer the engine mods but as for the exhaust the car had a Spoon header, Godspeed Test pipe, a Tanabe 60 mm with my 2-1/2" ID x 2-3/8" OD adapter welded in. With this set up the baseline was 127/181 and Steve tuned for about 10/11 runs and got to Run10 above.

We then remove the test pipe and header and installed my ITR header (same one used in the header test) and a short test pipe. I shortened the secondaries 2" and then installed 2" extensions to get it back to the its original length. We made 3 runs until the graph settled out and got Run15 as the best. We then pulled the extensions off so the secondaries were 2" shorter now and made 2 more runs.....we lost power. Steve then changed the ecu and we made 2 more runs with the shorter secondaries. The new ecu lost power below 6600 but made power above 6600 with the short secondaries. When you compare the new ecu with short secondaries it actually made more power than run 15 above 7900 but lost significant power below that.

I hope you all can understand all that, it gets confusing with all the different set ups but I just want to say that Steve didn't change any settings while we were making any of the runs with my ITR header. I wish we could have and I actually had another header and cat back exhaust system in the back of the truck that I was going to try to get Steve to test but we ran out of time.

Thanks to the guys at the dyno for letting us stay a little longer. There was also one other member (Frank, I forget his H-T name) there who saw all the runs.

Black R, the A/Fs went lean in some areas and rich in others

Tommy_Gunns, I'll probably be doing some stainless by the summer but that of course we effect the price

naturalvx, if the torque and hp numbers don't cross at 5252 rpms then the scales are different. I for one also like to look at graphs with the same scales.


Steve

 

Great job Steve/Dave

 

Nice numbers hope to here more about what you guy's end up with after more time on the Dyno..

 

This particular header is sold, the guy who bought it let us use it this weekend. The owner of the car will be keeping his Spoon on there I suspect.