Most people who know me, are more then likely friends on facebook, so you've kept up with everything I've done throughout the last few months on the setup and what not..

I find that most nitrous threads in the NA forum tend to lead to no where, so I figured I'd post a little build thread in here.

My last B20vtec broke a ring land, that's what happens when you push limits lol..




The Last setup was a 13.1CR 84.5x89(stock sleeves). I daily drove this setup for over a year, made around 247whp through a exhaust, with some room to grow if I had ran anything but 93 octane. Ran a best of 12.7@112 on street tires in a full interior GSR. One night I was getting some gas while going to a car meet, and on the way back home the car acted sluggish.. I always carry my laptop with me, why? Because racecar..and I'm tuner, you never know when you'll actually need it LOL.. This really sucked but it started to smoke a few days after, I decided I was gonna tear it down and redo everything.. so it begin.

We went to 85MM, stock sleeves. My piston of choice? Wiesco, 12.1.



I had a good buddy Paul F, do most of my Engine machine work and cleaning. He also did some major work to the head. He does all of my machining for the engines I build here @ DDTECH.
Stock 89MM Crank

Line honing


Starting to assemble the block with my ol Father in law



Some head work




Together, at last.

 

Nice . I'm building one myself

 

Sold my Ported VictorX and decided I was going to try ITBS..Had my buddy Keith Wilson port and open the OBX itbs up from 48mm to 50MM







Supporting the companies, that support me



Done


No DDTECH build is complete without some type of customer header..
Jack Myers came through..


NA Motor, Done

 

No block guard this time on 85mm? Wow. Nervous?

 

The NA setup with the ITBS over the VictorX picked up 3-4MPH faster on the track. I never redynoed the setup, I street tuned it to redo the fuel, tuning some of the ign off of plug reading and I hit the track, first pass was 2 mph faster!.. Obx itbs did work.. I was impressed..On Drag radials my best time was a 12.5@117 with the ITBS.


Then I got this.



Brad @ AFI Turbo, talked with me and I explained what I wanted..Tappered runners, ported manifold, big *** opening.
3.7L Plenum and 90MM Opening.

I had a customer who traded me a full nitrous kit, for a tune, thought that was fair so I took it.


I don't use the box from Zex, don't trust it. This is a home made, put together kit. I used the Nitrous tank/Line and nitrous noid from zex.
Then I got this...

Wet conversion, because that's what I wanted.

Oh, and no build would be complete without some bad *** Fucken cams right?..
Dem Reapers

 

Nah.

I felt like at this point in time, it wasn't going to serve any purpose..

 

Looks good. In for results.

 

My car does look like ****. But I'm ordering a new front end. I'm having the car wrapped as well, since it is my shop car.

I run a 4'' intake with a 4'' Vstack.

I'm on a single fogger setup. I started with 100 shot. I left the motor tuned very aggressive, the setup is on C16, not pump gas. AFRs were roughly 12.9-12.7, Total Timing around 33 on RG.
While my buddy was deployed over and I was awaiting my 23x13x8 rims/slicks, he let me borrow his tall *** tires.. so I could get some seat time on the new motor setup, btw this entire setup has under 100 miles on it.

15x24.5x8.5 Slick/rim size. M/H slicks on slipstreams, I wans't happy with the trap speed but then again, my short gearing and tall tire weren't liking each other.
On MOTOR


I haven't dyno the new setup at all on motor or gas. I will however these up coming weeks do so, I know that this is fairly quick.
I have had 4 total nitrous passes in the car, so far. My last pass was in dec before the track closed down.
My best pass of the night was a 11.4@12x on just a 100 shot with 6.5 degrees pulled, total AFR's mid 12's around 12.4ish to be exact.
I started pulling 8 degrees, and every pass I'd add timing back, and the car got faster and faster. I wasn't even done tuning, the nitrous ran out!..

I haven't been back to the track. AT All this year yet, my wedding took a lot of time, and then with DDTECH getting really busy, customers came first lol..

 

I removed the exhaust, and dropped 30 lbs from the exh setup which was a 3'' exh.
I also modified my Myers header from this


To This, Special Thanks to Dave Fry @ R2M for the modification to my merge / megaphone



And these arrived

Lenso/Exospeed rimes - 13x8. 10lbs a piece, Brand new M/H 23'' slicks.

 

Plugs from the last pull



Some timing still left on the table.

I'm using Nitrous Outlets jetting scale and jets.

100 shot is a .54 pill
I'm using a .18 fuel jet.
Bottle pressure is around 900-975 when spraying.

I'll update more, not really a build thread guy but I figured I'd spark some nitrous interest as I'm trying to go after the record anyway.
For testing purposes, I'm going to keep the car on a 100 for the header mod and to test vs the bigger slicks.. After that?.. I'm letting it eat.

I have pills for a 150 and a 175. If the car makes it pass a 175, it'll see a 200.


A Break Down of the setup:

Block:
85x89(stock sleeves)
12.1CR w/ GSR head
Eagle Rods with Carr rod bolts
Wiesco pistons
ACL Race bearings.

Head:
Skunk2 VT, Skunk2 intake valves
Supertech Exhaust valves
DDTECH Reaper cams
AFI Custom intake manifold
Skunk2 90MM TB
RDX injectors
Skunk2 fuel rail
Aeromotive fuel ****(60psi base pressure)
Myers header
4'' intake and 4'' vstack

NGK 8 copper plugs, gapped @ .030, stock ign system, Stock ITR tranny, Stock Axles.
92 Civic EG, Gutted, two front seats, and dash.

 

What are you tuning with?? Youre at 25 degrees with the nitrous?

 

you inspire me to install the nitrous kit taking up space in my garage. I'm afraid of on the Jesus juice though.

 

Neptune. Neptune controls everything in regards to disengaging and engaging the nitrous. It controls all timing aspects. I've decided that while i'm on a wet shot, i'll "JET" tune the nitrous fueling, while leaving the NA fueling alone. The only thing being controlled tuning wise is the timing pulled through Neptune. I'll relook at my datalogs but i believe my last pass had 6.5 degrees pulled for a 100 shot, so roughly 23-25degrees total timing, While spraying the nitrous. Sounds like alot, doesn't it?.. But the plugs talk alot more then numbers .. The timing mark is in the bend and is pretty much dead nuts on, i think there's another degree or so in there but we'll see.

Neptune to me, is far more advanced then most give it credit for. I have neptune setup to engage Nitrous @ Vtec Xover with at least a minimal percentage of tps. I also dont have to worry about it being engaged while on launch control because neptune controls it activating after the car moves 1mph.

On my motor hits, and My nitrous hits, I'm on my 3 step at 8700rpms, The tires were hurting me, but the lower launches netted ******* short track times.

My best time, and i dont have a slip for it because the wife lost it, is a 11.4@12x, i pulled a 1.71 coming out the hole on the nitrous, i left at 8700.


There's nothing wrong with it, people are scaried because things aren't setup properly. Most people overlook the fact that everything is important when doing nitrous.. You can just throw a kit on.

Out the box jetting is rich, and believe it or not, its better to be lean with nitrous, rather then rich. Rich is what causes manifolds and **** to blow up because of the vapor back feed from being so rich.

Running proper fuses for amperage, Relays and what not ensure consistance in shooting. Proper Jet sizing is easy to understand once you grasp the general concept of nitrous tuning via jets.

Get a full wet kit together, install proper and start out small with a 50, work up, if you have any questions post. I love nitrous and plan on using it for awhile.. turbo just isn't for me.. and i'm too big of a NA guy to actually fully leave it behind.

 

It's a complete NX direct port wet kit. I feel like dry and using injector control through Hondata is a better option though. The smallest jets it comes with are for a 100 shot. Everyone said just fogger under a 100, but I already have the kit.

 

A good read. But the jesus juice doesn't go "ppppppppssssssssssssssst" like a blow off valve does. I'm excited for more on this thread. I like reading, even if I have no use for the knowledge.

 

I'll be trying to head to the track Friday night with the new header modification now finished and the slicks now mounted, and ready to go.

Here's a pic of the cleaned up header and modified portion.

 

Its either or, you can do wet or dry, regardless of what anyone tells you, Just consult with your tuner. I prefer to use wet with a fogger, that's me. I'd rather know my motor tune is on point and Jet tune the nitrous and allow the ecm to control timing rather then worrying about the correct fueling and **** like that, makes it easier to me, when tuning.

 

cute

if I ever do a straight all all motor ls/vtec I need those cams and that header... maybe the itbs for my birthday too

 

man seeing this thread makes my decision to go B20 non-VTEC or VTEC + nitrous or K24 in my DA even harder now. mine would be seeing dd duties, but still, seeing as how I have a B16 trans already and I've wanted to do a car with giggle juice for a while now...hmmmm

 

When building a motor for nitrous do you set the clearance as loose as a turbo motor?

 

No.

 

When u plannin on dynoin the car with current setup? cant wait to c those #s......great build by the way

 

So build it to the same spec as a n/a motor would be right?

 

Not sure if I missed it, but why did you chop the megaphone?

 

I was losing the Exhaust setup. I wanted to try something new, so I spoke with Dave Fry about doing a modification to the header to see if something would work.

The choke point was rather small to me, for the motor and nitrous together, Jack designed the header to be a street header, and it worked great, but I felt like, just open header it'd not be enough..

I also wanted to try and limit the cabin noise, as a open header that comes out behind the oil pan is a pity on the ears. LOL..