TOYOTA KNOWS BEST? MR2 BACK AT THE DYNO FOR A BIG GAIN! 

I mentioned merch in the video, well to celebrate my birthday the other day I’ve put a 20% off code on there > “BDAY” (only valid for today and tomorrow) www.dannydc2.com Cheers!

This is the thing so many people don’t understand. They go after peak numbers and don’t think about actual driveability and performance on track. Glad you put this together to show why it’s important to not just go chasing the biggest number and power under the curve is a lot more important.

Apexi adapter speeds the air up over the MAF (con-di nozzle), tricking the ECU to think you're a couple of hundred RPM ahead of where you are and overfuelling accordingly. As long as it doesn't choke (me daddy) at the top it will be good in the right engine that responds to more liquid life. 1zz probably doesn't like being forced rich in the mid range. I also run cone filters regardless of power, because tunes.

Magic Barn Dust on the air filter = extra BHP! Nice one laddo 👍🏼

Now then Danny

Hey Danny.👋 We started off with a couple from Hall and Oates in the Autobarn and ended with the MR2 singing a good tune at HSP. Good chunes all around.🎶😉 Yes, the Apexi is sexy and hips don't lie, but Toyota knows best... kinda. Very cool that you were able to test all those combinations of parts and see what your engine likes best. Science is good. Increased area under the curve is always a win and hopefully that'll be translated at the track. Maybe it won't be so damn hot at the next race. Looking forward to it, Dan. Have a good afternoon. BTW, I had my first sip from the DC2 mug yesterday and I'm about to go back for round 2. Cheers.✌😎

I could be wrong, but when you're talking about AFRs around 23.45, the 2zz is running at 13.5 which is slightly richer than the stock airbox which you said was around 14, not leaner as I think you suggested. Any mixture ratio lower than 14.7 to 1 is considered to be rich. In general a car should idle around 14.7 (stoichiometric) but when accelerating (especially in open loop), the extra rich mixture provides cooling for the combustion chamber and provides a safety net to help avoid pre-detonation (knock). This is my (very basic) understanding of how it works, so may be a load of twaddle. :) Some nice gains there and although we didn't see the benefits of them at Snetterton, hopefully it'll become apparent at the next races when you're hopefully feeling better on the day!

That apexi is using the venturi effect which is cause by the constriction by the MAF, speeds up the flow through just that section where the reading is taken, but ultimately slows back down straight after this is probably why you had such a change in AFR. I don't know the limitations of your class but it would be interesting if you could trying improving laminar flow by messing around with boundary layers, surface dimples could help. Great video as always, keep up the good work!

There should be threaded brass inserts on the 3D printed part, this should increase the pull out force requirement but looks like more bother than it would be worth to test that over the 2zz one. Happy birthday too lad

Love the RnD Dan, 8hp on an N/A lump is hell of a gain really, old engine must of been hurting!

cheers from Romania agian, here we are trying the same thing here with my Clio 200 CUP, took the Ktec Ramair out and added back the standard air filter system and the car pull 10 times better, we don t need no dyno to see the difference. The car is remaped, so no flat spots on the Ramair setup :) now we ar trying with the BMC CDA carbon system :)

Happy birthday for the other day. Always enjoy your videos, no matter what they’re about. Keep on keeping at it Dan, looking forward to the next race

Measuring is knowing. An informative day on the dyno. Good luck at the next race.

Happy days Dan glad you found the setup that works for you - All the best for Snetterton 🤙

Quality content. Looking forward to your next outing Dan

Big fan always watching and learning. I've got a 2zzge in mine so this helps. Plus you're a mad driver love to see you winning 😁 because in my view you are always winning 😁

My spyder pops out of gear if you aren’t serious about shifting it into 4th. Clutch all the way down and pull back as far as it’ll go. I’m actually running no filter but with a mesh gate on the end and 2zz intake plain pipe. I’m also running 2zz injections with an maf spacer.

If there's DC2 merch, maybe Dan is gonna do something with it this decade. Mad jelly of the DC2!

wow! Who would've really thought that a cut up 2ZZ MAF housing & a derelict Hybrid Racing Cone filter would take the cake! HAHA ...Good one Dan!

Really pleased for you. Great research, and glad that you’ve turned up a solid result 👍🏼

Now then Dan! Thanks for taking time to upload as ever! Fascinating to see how these small changes can impact on performance. Just been messing with air induction kit on my old nail of a 911, with a bargain 'eBay K&N kit'. I don't think I got any more power but definitely sounds better! Placebo dyno he say yes! Anyway, best of luck at Snetterton and look forward to your next podium finish! Mark

just coming across this video after someone posted it on Spyderchat and I see a few massive flaws in your testing. First and foremost, you didn't allow the ecu to create new fuel trims for each respective intake and/or air filter swap, so as soon as those are created for your new mod, the dyno results would change. Because of this, your AFR's for each run would be different, the load levels and respective load cells used for fueling and timing would be vastly different for the different intakes, etc. If you tested the stock intake with the vane in tact, created the long term fuel trims, and then switched to a 2.5" intake with no vanes and immediately did a dyne pull, you would see the car would be running lean. So long as it's not too lean and you don't see any misfires, this may give you positive results on the dyno because the same load cells used for fueling would also have more advanced timing, creating increased power. You would see this same effect using the MAF mode on a 1zz. What you should have done to make this a valid test is to do a baseline dyno run and then without doing anything else, just remove the air filter and do another run. Then switch intake systems, reset the ECU and then do about 10-15 minutes of streat driving, check that the LTFT's have been created and then do another set of dyno pulls. After that, rinse and repeat, that way the ECU has a chance to do what It needs to do to create proper fuel trims, and have repeatable tests.

That is a great results you make! And thanks for the input to change all different adapters ! If you can put on the list will be great! Like your video a lot!

the apexi is for a celica or t sport carolla both had a 2zz those cars tend to get a little better with driving too as the ecu will try optimize the afr's with the new reading from the maf witch is why it looks rich when its a fresh install id go with what made the most in the mid range

Great videos buddy!

Looking forward to the next track day podium finish now 🤞🏻

Toyotas number 1 fan is proud. Nice

You need one final test. That is on a track day or test day try them both seeing how high your top speed at Snetterton or Silverstone or one may perform better at Cadwell. Horses for courses Dyno is good proof but need that final test and I look forward too seeing how you keep the filter with cold air.

Very cool video Dan. Keep it up!

That's gonna make a difference in your next race for sure.

If you could fob off the MAF and go with a standalone with a better method to read engine intake this would eliminate the majority of these issues so you can just go = Big intake filter, big intake tube so it can make the most of all this cold air , do you think ?

Great vid. Useful info!

I respect this video

You could port the Apexi, slim those hips… Never bought into the standard air box argument, find me a racing car that runs the standard road car airbox unless it has to for homologation…. Induction Kits 👌

I'd say Toyota does know best but it depends on what they are going for. Peak power is certainly not the highest part on the agenda. Tweaking how much air flows through the maf obviously changes the tune. Back in the bad old days you could lower the maf reading a bit and it would add timing and reduce fuelling which would basically make a bit more power but increase cylinder temps (may knock) In modern cars it's a bit less of a thing but after you uncork the exhaust etc you can do the same thing as you have shown. Pretty fun playing around with all this isn't it

Flipping the bird @7:30

Awesome video mate! I like this kind of stuff. Did the Dyno guy tell you the transmission loss calculated in your transmission?

Little bit confused. Which was the best in the end. The one you were chopping up? Is that just an after market induction kit for 2zz celica with a MAF housing. Or was the 2zz stock MAF housing from the celica stock airbox the best.

Good marginal gains all add up! I'm guessing that even on track heatsoak could be hurting your performance. Original airbox plus a good foam filter (ITG are nice) might perform better than a cone if the engine bay is baking hot. Might be worth logging air intake temperature via ODB2. Cold air is power so I'd do everything to keep the heat away from the intake. Zircoflex III to make a barrier, Reflect-a-Gold heatshield, maybe ceramic coat parts to keep heat in exhausts and heat out of intakes. Plus, from a distance, it will look like a McLaren F1 engine bay and you can pretend to be Goldfinger.

bandsaws for gents

So my k&n panel filter doesn’t add 25bhp to my fiesta?!?

Now then discord

Are you able to shield the cone filter hyp from the hot air within the engine bay? With the racing regulations like. Something like a heat shield may reduce heat soak

Mo Powa baby

I watched several of the videos on this topic .I saw you later had issues and were talking about throwing the 1zz stock maf box housing back in. So do you still recommend the 2zz maf housing over the stock 1zz set up?

I have a 1ZZ in a Celica and I would love to know this kind of mods that make it perform a little better.

Great results Dan, surprising what can make just a slight difference. I have just got my k20 swapped Mr2 running and was wondering do you have any photos of the induction setup you ran on your one? Any help would be handy

Hi Danny, great videos and instagram, no bull and great info - spot on. I'm just after getting one of these for the track (over in Ireland). I'll try the 2zz maf trick with a pod filter. What exhaust were you running here? Just wondering if these run better with back pressure and I should keep the cat in, or if I should remove the main cat and maybe get an SS manifold. Any recomendations?

It was NFG..... 😂😂 mint

Maybe hybrid racing filters age like a fine wine? People are going to be hunting out good years of air filters now...

Now then my fellow Yorkshire man. Great vid lots of ace info. Hope you had a great birthday just contributed to the DC2 fund.

Hey, sell me that intake setup with the Hybrid Racing filter attached lol! I'd like to put it on my 1ZZ car that has an Apexi PFC, I'll go get it dyno tuned here and compare it to the Monkey wrench that's on there now.

Hi Daniel, sorry to ambush you at the gates Sunday morning, good to see the tenting rig! what happened in race 2?

Who's the helmet that dislikes these videos 😅 A new racer trying to make it in a hard competitive sport. Doing class Danny mate 👍

That’s exciting news bud. Cant wait to see you apply it at the next event.

Is it possible to put a temp gauge somewhere near the maf? I ran a cone filter behind the battery but once the engine bay got warm, you could feel the power drain under foot and the heat soak. I'm now running a 2zz with a CDA canister and 2zz intake like yours, but I'm not convinced it's the best way to do it. I'm wondering if I can do something cuter. Keep meaning to get a dyno.

Happy birthday for the other day mate. Weird question, but how old were you? I'm 29 today and feeling old as f*ck 😂

saw your Ig post with the log of the IAT, with that temp it would be pulling timing for sure, I feel a noticeable power reduction on my rx8 when IAT goes above 50c, you should gain some more power with cold air feed to lower those temps for sure.

FOR SCIENCE!

HI Danny, did you pay any attention to the distance from the MAF to the throttle body, and also from the air filter to the MAF? Cheers Olly

havent watched this yet, but about you smoothing off that 2zz housing - always thought that the intake side of things should be kinda rough on inside for some (??) magical airflow reasons? and obvs exhaust smooth as possible. i know its like that for ports idk if it extends to the rest of it.

I have done the caps maf mod with mine and put the 2zz injectors in, hopefully I can get it on the dino, would be good to compare it with your results.

There is a light that never goes out

🙏🙏

Dan, are you allowed lighter wheels? Those stock ones may be less than ideal

*Akio Toyoda wants to know your location*

Nice one 👍🏻

you should put a sneaky vvtli head on it

Hey @dannyDC2, the 2zz maf housing is a cutted part of the celica airbox?

Potentially youl be getting 160bhp when driving at speed with cool fresh air shooting down the air intake

Christ, you’ve cleaned it.

Try some 5w20 racing oil for less friction.

Interesting news but how come you went with thicker oil ?

I like Toyota and I think they do know best.

Hey man, result! I assume you are running a sports car and improved flow back box to achieve that as well?

Nice numbers my man. And lovely info for my 3zz plans.

inb4 celica airboxes become £100

Discord gang gang

How does it handle with the caster change setup now ??

So is this wheel or crank hp?

The DC2 t-shirt in the video isn't on the store. Am I stupid or is it missing? Totally fine with both.

Are you changing gear at peak power or going beyond it ?

good power for a stock 1zz, what exhaust do you run?

was the 157/8 peak power at the wheels? if so very impressive.

Bossman

Posh veins

Here boi

So all the guys that talk heatsoak with open filters talk tripe