setup:

95x89
13.5:1 compression
skunk pro3 cams
skunk pro valvetrain
RLZ valvejob
75mm tb
custom intake manifold (made it myself)
rc 550 injectors
custom 4-1 exhaust manifold (made it myself)



red = euro r manifold
blue = our custom manifold

wanted to make sure everyone had a chance to check it out, the original thread is in the drag forum here: https://honda-tech.com/forums/showthread.php?t=2474967

 

Congrats, that is pretty damn impressive.

 

great work....but it is in a civic

 

Wow, great numbers. I'm watching the source thread at the moment and one thing makes me think: you bought h23 crank and H22 rods?

 

Pretty snazzy. Got pics of IM or header?

Thanks for sharing.

 

Here's the thread

https://honda-tech.com/forums/showthread.php?t=2474967

 

at least i know its possible, that number is my goal.

 

Damn, that's everybody's dream right there, at least mine.

 

Haha, yeah. I bet its stupid fast tho.


Thats awesome. I didnt think you could make that much power with a H. How many ltrs is that?

 

congrats bro! For hitting the 300 hp n/a!

 

That thread is sick beyond words.....in a very good way. I can't believe the euro R mani holds up this well to that monstrous looking mani!

 

89x95 is about 2.34l

Nice build

 

thanks everyone

the eruo r performed decent but started choking the motor around 7500 rpm

the custom manifold will pick up about another 20hp while going down the track, i will definately need to add more fuel


sorry its in a civic, but weight is just as important as power. especially w/ an allmotor setup. not only for et's but also for breaking parts

 

RICE!!!


If your going to dyno again let me know. I have the Euro-R off my street car. Test that one

 

its the plenum volume which is too small, plus the runners are a bit long for making peak power. they are actually 2" longer than the stock manifold.

next time i hit the dyno will be late summer once the ported head is finished.

the motor also wants a larger tb, so im gonna go up to a 90mm or so and possibly make a bit larger upper plenum.

i will also have another header completed by that time to test as well

 

my only thing i really saw was that the euro-r made more tq than ur custom mainfold and specific reason for it

 

I don't suppose you also ran the Skunk?

What would corrected numbers look like? (SAE, STD?)

I wonder if you'll get measurable bump in manifold pressure while in motion....

 

the euro r made a little more tq but that is to be expected with a smaller manifold which provides more velocity.

i expected to see a huge midrange loss when bolting on the custom manifold (on the dyno) but it suprised me.

the custom manifold was designed to perform at the track, and it will pick up alot more power while the car is at speed.

it is expected to provide a small amount of pressure.

not sure about the corrected numbers, but it was raining and alot of moisture in the air. if that matters

 

very niice build

good to c some people building vtecs the RIGHT way

N/A for the win!!!

 

the good thing is yea u made more tq. with the euro r but it dropped faster than your custom mainfold did....that car is going to be a monster at the track....im going to e-town to see what that monster does.

 

i still don't understand why you think a velocity stack on the TB wouldn't benefit you. i understand about the intake tube, but it seems like this is about the perfect app for a stack

 

velocity stacks are overrated

you have to remember i will be moving @ 120+ mph

velocity wont be a problem for me

if anything, i need a large scoop to help guide a large volume of air into the tb

 

yeah, but from the way i understood the stack to work, it allows your piping (or TB) to act like its true size. in that a 3" pipe with no stack and all the turbulance at the entrance point it really acts as a 2.5" pipe (random number, i can't find the data) but with a stack it will pull air at the inlet of the full 3"

now this is just what i remember/think. but i think it would be interesting to see times with/without the stack and see if times are affected


taken off of wikipedia, but it works for what i'm trying to say

 

It's a Velocity Stack. He's going to be going down the track at 100++MPH.. PLENTY of Velocity being shoved/sucked in.

And as he said, he's more worried about Volume right now as that's what his testing/tuning has concluded.



By the way, beautiful build!
It still amazes me that people don't realize the H-Series can make 300whp when it's been done for years....

But by far, this is beautiful and should still be able to pick up more power as you've already stated/concluded.

The only thing I'd be worried about with that manifold/plenum, is it catching to much wind resistance and ripping off... But I'd assume, by reviewing everything else, you've built it to not just "snap" off.. ;P Hehe

 

alright guys, i'm not an idiot, i understand whats going on while he's going down the track. all that i'm saying is that with this stack it seems like MORE air would go into the TB understand? high speed and less volume or high speed and more volume with a stack, i'm not saying it will or won't, all that i'm saying is that to me this seems like for the relatively small purchase price of a stack, that it could yield some gains.

i could be wrong but don't talk to me like i'm stupid, i know full well whats happening as this car is going down the track, just seems like this would get the air in better.

i thought the over exaggerated picture that i posted explained?