Last Friday we were able to do a header test between the Hytech and the Toda V2 Header. The test car a B16A equipped CRX was already using the Hytech Header with great results (About 11hp everywhere over the DC Sports 4-2-1 for the B16) However we were looking for another header that had better ground clearance and stumbled across a Toda V2 at a deal we couldn't pass up.

The results were alot better than i expected, With the Toda picking up power and torque just about everywhere, Without losing any power up top. Overall we gained the extra ground clearance that was needed without sacrificing power.

(Both Headers were fully tuned on S300, The spikes and peak torque numbers are off due to dropping rpm signal)

1988 CRX HF
Stock Block B16A
Supertech Valvesprings
Supertech Steel Retainers
Edelbrock 4730 Cams
ITR Intake Manifold
Omni 68mm Throttlebody
AEM Shortram Intake
BPI Stack with K&N Filter
Toda V2 Header
RSR Full Exhaust
Hondata S300

 

Good info, thanks for sharing.

 

Thanks for Sharing. IPG parts +1 .. Toda did well in the midrange.

 

Exactly. Which is what its supposed to do. They were designed for midrange and torque. Never power. Road Racers aren't worried about that so much like you peak power drag racing fellas.

 

thanks for posting. Hopefully some dont misconstrue this comparison due to the peak numbers being nearly equal. Although I know it will happen.

thanks for sharing your findings!

 

I agree, I was really surprised the Toda didn't get beat up top by the Hytech.

 

thanks for sharing this valuable info!

 

you should post pics of both headers and specifications ( tube ID and collector size)

 

They are both 2.5 Inch collector, Tube size i am not sure.

 

Why are there aberrant torque spikes?

Also, how many back-to-back runs do you with no changes to see what run-to-run variances are? I'd guess that run-to-run variance would be at least 1 to 2 percent.

Nobody ever seems to be interested in the precision (repeatability) of dyno measurements.

 

typical dynojet ignition pickup.

 

Sometimes the rev limiter or vtec trip up the rpm signal, but since Dynojets measure power, that's always gonna be a direct measurement.

 

Just randomly losing rpm pickup.

There were 4 baseline pulls with the Hytech, That was the average run. The Toda i believe had 3 back to back to back at the same ECT after it was completely tuned, and they were all very close. We consider this to be one of the hardest but most consistent Dynos in the area. I know for a fact i can go 5 miles down the road to another Dynojet and make 180hp.

 

thank you for the test, is there a picture to see the 2 headers side by side? That would be great if you have a picture like this. Also what is the difference in pricing? Is the toda header made in japan? Are they in stock? Or like a custom header like the hytech?

 

@01DC4, thanks for the reply.

So the runs shown are an average of 4 or 5 runs?

 

As far as pricing or availability i have no idea haha. We don't sell either of them, This was just something I put together doing testing on my personal car. One thing i do know from spending the money is that both are quite expensive and hard to find in good shape.

I unfortunately do not have any side by side pictures myself, But pulled these from google for examples.

Toda V2 http://www.todaracingusa.com/catalog...?idCategory=27


Hytech with Anti Reversion Chambers.

 

Yes Sir, Average of 3 on the Hytech and 4 on the Toda. I wanted accurate results as much as anyone.

 

That's awesome. Thank you for posting up averaged runs.

You don't know how many times I've seen thundercat homies posting up 185whp B16 because of the revlimiter blip.

 

The pictures above are of the T*DA replicas made.
Toda Racing actually makes their headers in japan and use an American Distribution company called Misano Motorsports, which is the exclusive distributor in the U.S. The Toda Racing Header is a bit rich for the blood of most B-series enthusiasts (at about $1500), and therefore, most here will say that it is for "JDM FANBOYZ YO!" or however they make fun of people who don't mind getting it from a particular source. For most in the U.S., one could custom make a Header to their specific application, so its not the most popular by any means. So what most do is pick up the T*DA Replica that is made by Spoolin' Performance, and one other company (name escapes me).

But the design of the TODA RACING header or its dopplegangers wasn't made for top end power and drag racing. It was designed to optimize for midrange torque (regardless of engine size) on a road course (medium and long course), and was therefore designed for a specific range of purpose. So for those that care about peak "numbers", they get something else. I'm sure you'll know what those sources are.



http://www.todaracingusa.com/about/history.asp

 

?

 

Sorry, didn't see the Hytech nameplate below the V2.. Correction understood and acknowledged.

 

@TheShodan

 

Toda do make a couple of versions of there B header and are very easy to purchase thru one of there dealers worldwide.

http://www.toda-racing.co.jp/en/prod...ani/b18-1.html

http://www.toda-racing.co.jp/en/prod...ani/b18-3.html

http://www.toda-racing.co.jp/en/prod...ani/b18-2.html

 

@01DC4,

Do you mind posting a pic of the 3D fuel graphs for the Toda and Hytech tunes.

 

lmao