Two of the most respected names in the Evo world seem to agree.

From both sides of the Atlantic!



And what is under the hood of this car? From Norris Designs website:



So AMS, Magnus, Hypertune, HKS, etc... when will you go head to head with DI to prove you are the best?

 

This thread has bad news written all over it but I hope it stays clean

In any event we would be happy to put our F1-I into the mix. The big problem is going to be testing. Really the tests need to be done in a controlled environment on an engine dyno and that is going to be hard to do.

Eric

 

I truly mean it in a fun competitive way... hope people take it that way. I'm just super impressed with the praise DI has gotten.

But why must an engine dyno be used?

 

Granted track times introduce all kinds of variables, but I still think ET is more important then dyno HP in evaluating which manifold is best. (That is NOT an invitation for the vendors and ball jockeys to start slinging who’s time is the fastest)

I've seen test in the past where manifolds made 30+ HP on the dyno and the car went absolutely no faster on the track. It traded off to much mid-range for top end and netted nothing in the end up a high price tag.

 

That is because average power, not peak power wins the race, any race.

The dyno is the best tool for determining average power. That's its purpose. Where a dragstrip is concerned, trap speed is the only reliable indicator of average power.

 

the fastest/quickest evos in the world dont use DI....

 

Watch what your saying there buddy.

 

In before the lock. However it would be nice to see it kept clean.

A dyno would be the only way to accurately test these manifolds as it would eliminate issues like wheel spin, shifting inconsistancies, track prep. A 10-15whp gain can easily be negated by a small amount of wheel spin off the line.

 

F1 is that thing even out yet ?

It's like a myth.

 

I've said this before and I'll say it again, I think Razorlab/GST out in California has shown tremendous data collection and analysis ability. Why not send him an F1 and a DI and get a test done? I don't think that in GST's history on the board that he/they have shown any bias. Best bet IMO to get results which are respected.

Maybe Tom from DI if he notices this thread could reply if he would be willing to send out an intake to Razorlab / GST Motorsports for testing?

GST Motorsports, if you see this thread... would you be willing to do the test?

AMS would you be willing to partake?

 

Both myself and Norris offered to do a manifold test on his dyno but it was soon forgotten, I would still be up for testing then but the UK is a bit far.

Mark

 

There we go... and I'm sure Norris has a DI sitting there ready. Just to get Norris to agree to the time on the engine dyno and have AMS ship an F1 over?

What do you say AMS? Have Norris and Mark do the testing? Can't ask for a better combo to test a part.

 

See you in August?

 

Crcain, This may be a rough thread but let me chime in. Why my manifolds are where they are after only ONE year? Well the first thing, I always listened to customers! Their input is the most important part in my design of a manifold. Also working with people like Dave listening to hes needs and goals, getting feedback and making alteration from real life testing is a great part of success (Thank you Dave)! The design of DI manifolds is for a everyday customer and not only for a race cars! Its easy to build a manifold that does one thing which is only to make power at super high rpm boost! The challenge is to provide a manifold that has no losses mid/low and huge gains up top and that’s what DI did.
From the first manifold, to this one, to the next one and so on, we will always be improving and staying on top of the design and technology!

Another great part of success is making the manifold user friendly. No need for new UIP!!! We can adopt any TB customer wants and very easy to install! Looks great and the most important it does what it supposed to do, which is make power throughout the entire power range!!!

This is a business and everyone wants to be the best to sell the product! DI moto is to provide the the best customer service possible and a Best performing product on the market!

Politics really dont concern me as everyone has their favorites brands and companies that they buy and work with. There are lots of claims on some of the new manifolds that are just physically not possible to do! Its very sad that they lie about the performance of the product! I guess at the end of the day for them its a business!

I'm independent company that's still here and growing rapidly! We specialize in the AIRFLOW department! We have customers from all over the world! Currently working on many new projects from Lambos, Ferrari's, VW's, Honda, BMW, MB, Subaru's and many others! We don't have only records in the Evo community! DI manifolds are on the fastest BMW in US! Soon to be many many other records set

I am confident and will put my manifold to test against any competitor in a controlled environment! I will even travel to facility to help and supervise any tests!!!

 

Nice post DI!

AMS would you accept Norris and Mark testing your F1?