DDTECH

Excellent Combo of parts = great results.

Glad to see people still do solid research.

EG9b20vtec

Nice set up

MantisX

How long do builds like this usually last being daily driven? Im really considering giving the turbo a break and building a N/A. I know ill miss the torque of boost but these sound awesome lol.

JDM_teh_WIN!!

What is the difference between the two runs? Baseline and tuning or did you change something else?

DirtyDA9

Just goes to show that when you know what you are doing, it works out.

Quality build my man

acura_b18c1

hmm I wonder why the motor didn't make more hp on 110 over 93oct even tho the compression is fairly high ?

JDogg

I helped plan the build and I did all the tuning. It was originally on crome, but we were having issues with the 2step and revlimiter, they were inconsistent at best, and we needed more ability to log things at the track so we switched to aem. The stock distributor wasnt playing nice w/the aem so I threw a cop/t1 trigger we had laying around on it.

Its in a full interior eg hatch, I think the fasted on 244hp was 12.2.

The only difference between the 2 runs is the head, the 244hp run had only a good valve job, 257 was after the rlz head. We'll be shifting around 10k w/the new head.. the car should go alot faster down the track.

The only thing to worry about with this build as far as longevity goes, is the fact that its still on stock sleeves.. 10k rpms on stock b20 sleeves is probably pushing it. Getting it to drive with out detonation on the low cam is also a concern w/the compression.

Last time on the dyno we tried a number of things, but I think the header is holding this motor back from making any more power. ( it is a small tube tri-y knock off) When we took the exhaust off it actually lost power. The only changes we'll be making this season will be in the header dept. The power is good, the main thing now is getting the car down the track.

SiR-iNTEGRa

balanced crank

JDogg

are you asking? if no, then no, nothing has been done to the crank, everything was used as is out of the box.

JDM_teh_WIN!!

Looks like you got some nice gains with the PNP. What is the A/F? The only thing I saw was that you have a big dip on the higher run compared to the first one. Is that where VTEC is or is that just the crossover? Maybe it's possible to richen it up down low to lose the dip and stop detonation?

P.S. What trans are you using B16 or GSR?

BMo Tuning

that head job is doing some serious work here

I've been kicking around the idea of doing basically the same build in my DD, different IM/header, but basically the same damn block and head/cam combo. This just makes me want to do it more.

boostedgeezer

Very nice build!!!! We also did a customers car at my shop very simple b20 build and came up with some pretty good numbers. Not quite as good as yours, but good for what we were working with!!!!

allmotorpackage

which RLZ head is it? .. the street/strip, race, or outlaw? the dyno chart comparison showed great power increase from about 7k on , but it looks like it made less power before 7k. Is this due to the head or something else?

JDogg

Not sure what he put on there, he just said.. "it's some good stuff"

the loss of power in the middle there is due to cam gear adjustments. With the stock head the power hit a wall at 9500 no matter what. Because of that I adjusted the gears accordingly which resulted in a bit more in the middle.

With the RLZ head the power stays flat through 10k rpms, so we dont need the power in the lower rpms since the motor is never there. shifting at 10k puts us in the fat part of the torque.

With the old head shifting at 9400 put it back in the fat part of the old torque curve... we dont need that part now that it makes power higher up in the rpms.

allmotorpackage

nice ... do u mind me asking what the before and after cam gear settings were?

JDogg

I honestly dont remember, we were short on dyno time and I didnt write down the changes.

Casey

iTrader: (5)

looks good. i hit up dd tech cams for you and ian. he was looking for a motor to do a comparison of p2s to his cam.

ian mentioned it was a race port last time i talked to him.

JDogg

Hit the dyno again today.. Tested a skunk2 alpha header (only thing we have been able to borrow with bigger tubes than what was on the car.)

Picked up about 5-8hp from 7000 on. It was interesting that the new header actually lost power with the same cam gear settings, I had to retard the intake cam 3 degrees to get any improvement in power. Any changes in the exhaust cam lost power. The cams were dialed in very well on the old header.

I forgot to send myself the dyno graphs, but we're happy w/the gains.

Hitting the track this weekend, hoping for 11's

Charlie Moua

iTrader: (3)

very solid build boss.

ProjectEvilEj2

very impressive!!! Must be a good build and a very good tunner! Beautiful!

newtype_33

nice!

exgr

hey jd do you mind posting the timing tables for reference? or maybe pm to me on fb.

HYREV2NR

Drooling while reading! Ever figure out if it was a B16 or GSR head?

99black_em1

wow very nice, I was always under the impression that a header swap would require fuel tuning. I had no idea it needed as far as cam timing to be dialed in all over again

JDogg

For timing.. its pretty simple.. flat around 30 degrees give or take one or 2 from 4500 up.

I did have to add a touch of fuel w/the new header but not much.

Exhaust pressure is key.. I really wish we had an exhaust pressure sensor in this car. Thats why the cam gear adjustments were needed. Small tubes = alot of pressure and require different amounts of overlap... at least thats what my logic is telling me.