Dyno - cammed DEK!! ruh roh

*DandyMax* · 05-09-2008, 04:08 PM

*Warning* - long post... oh, and some 3.5 swappers may flip out after reading this...

J/K

So I got on the dyno this morning to finish up my tuning on the cammed DEK, seeing as I'm heading to the track tomorrow for one last hurrah with the 3L to hopefully beat my PB with it before putting the 3.5 in. So obviously I wanted it running and tuned up in top notch shape for tomorrow.

Anyways, I started off with just a straight baseline pull to see where it was at, and it put down about 246 whp. But viewing the loggers I could see it needed some tuning, so after 10-12 pulls and a bunch of playing with fuel and ignition timing I had it running up around 263 whp. Once I optimized it at that level then it was time to open the cutout and make some noise! I did so and after a little more tweaking I just about hit 270 whp at 7500 rpm, actually it came out as 269.87.

So it goes without saying I'm happy with that. Interestingly enough, the modeling I'd done before building the engine predicted around 275 whp at 7700 rpm, and I was skeptical at the time that it was accurate (never fully trust software lol), but hey the program was just about bang on. It does require meticulously measuring and inputing data to get that close though.

So below I've posted 2 graphs, the first one is the best run from today, and the second is just a fun comparison with my 220whp run from 2005 (with stock DE cams and 00VI). The cams have obviously shifted the power band as one would expect, although I have changed more than just cams between the 2005 dyno to now.

You'll notice the dip in the first graph at 6500 rpms, that spans approximately 200 rpms - that unfortunately is unavoidable and is due to the EU adding fuel to get past the stock limiter. There is a momentary rich spike that drops out the power for a split second, but keep in mind that 200 rpms goes by VERY quickly, especially in the lower gears and is almost unnoticeable in the car. It looks big and ugly on the DJ graph, but in reality affects the performance of the car barely at all. I can positively say that the car pulls pretty smoothly through that area, even in 3rd and 4th gear, despite how it looks.

A couple more thoughts: calculating out the crank horsepower gives me somewhere in the 315 range, meaning this engine is doing easily 100 hp per litre. Woot! Also, you can see that it really would have liked to rev to 8000-8200 rpm, if the oil pump/bottom end would have allowed... peak would have been around 7700 or so I believe, probably 273, 274 whp, or something like that. But I am not taking it higher than 7500/7600 now, don't want to blow another pump.

Oh, guess I should post the engine mod list applicable to today's dyno as well:

VQ30DE-K Swap
VQ35 Oil pump w/ low pressure cut off switch
VQ35 JDM cams (similar specs to JWT S1)
VQ35HR valve springs and retainers, double shimmed
Mild head "work" (NOT ported though)
Unorthodox flywheel
Exedy Stage 1 clutch
Greddy EManage Ultimate
Pathfinder TB
Stock DEK crank pulley
Custom intake w/ MAF delete
Cattman headers/y-pipe/catback (plus cutout)
Low temp T-stat
Walbro fuel pump
Returnless fuel rail w/ adjustable FPR

First graph: Best run

Second graph: Comparison 2008 to 2005

**mtrai760** · 05-09-2008, 04:13 PM

Mad props.

*Tatanko* · 05-09-2008, 04:17 PM

Holy sh*t. 270 WHP and you could have gone farther? My god man

MorpheusZero · 05-09-2008, 04:35 PM

Holy crap. You haven't gutted the 00vi, either? Define "custom intake"

I am anticipating moar greatness from the 3.5. 320 maybe?

*t6378tp* · 05-09-2008, 05:02 PM

Holy sh!t batman he's pushing more than some of the boosted guys

I smell a bidding war when this engine goes up for sell

*speed racer* · 05-09-2008, 05:18 PM

Those are some real nice number. When you tuned it did you also play with the fuel injectors.

*DandyMax* · 05-09-2008, 05:25 PM

Quote:

Originally Posted by MorpheusZero

Holy crap. You haven't gutted the 00vi, either? Define "custom intake"

No it's not gutted. Ported for PF TB, and power valve removed, that's it. The "custom intake" refers to everything before the TB.

Quote:

Originally Posted by t6378tp

I smell a bidding war when this engine goes up for sell

It's already sold...

Quote:

Originally Posted by speed racer

Those are some real nice number. When you tuned it did you also play with the fuel injectors.

Play with the fuel injectors? Not sure what you mean.. they're just stock DEK injectors...

MorpheusZero · 05-09-2008, 05:47 PM

Quote:

Originally Posted by DandyMax

No it's not gutted. Ported for PF TB, and power valve removed, that's it. The "custom intake" refers to everything before the TB.

Power valve removed = close to gutted, that's all I needed to know.

Quote:

Play with the fuel injectors? Not sure what you mean.. they're just stock DEK injectors...

If you massage them they will relax a little which will improve flow.

*sparks03max* · 05-09-2008, 06:11 PM

wow great numbers, this REALLY makes me want to put some ebay S1 knockoffs in my 3.5 and rev it up a little higher.

**nismology** · 05-09-2008, 06:28 PM

The 00VI might just be the best IM nissan has ever made. Amazing results!

BLACKonBLACK98 · 05-09-2008, 08:39 PM

man thats awesome. i'm not a huge performance guy but i do plan on doing a nice all-motor build in the future. might wanna block me from your aim ahead of time.

*ajcool2* · 05-09-2008, 08:42 PM

All I can say is wow!

*98SEBlackMax* · 05-09-2008, 11:38 PM

Nice numbers!!! and I don't say that often.

It's near what I want to make in power on a 3.0. Gives me some more motivation for my own build. With the right combination these 3.0s don't have a problem with making power up top, just a problem staying together.

*tedo007* · 05-10-2008, 12:32 AM

simply amazing

*KRRZ350* · 05-10-2008, 05:23 AM

*96sleeper* · 05-10-2008, 07:10 AM

Awesome numbers. It ought to fly at the track on slicks with a great launch.

Product_Of_Korea · 05-10-2008, 07:26 AM

maybe its time for me to build my dek just laying in my pole barn collecting dust .

but freaking sweat man now we have to see what kinda times you will pull

**Kevlo911** · 05-10-2008, 08:06 AM

What are the benefits of a returnless style setup on a 30? Mad props man, I wish I could crack the 220 mark and I would be happy lol

codyace · 05-10-2008, 09:34 AM

Quote:

Originally Posted by sparks03max

wow great numbers, this REALLY makes me want to put some ebay S1 knockoffs in my 3.5 and rev it up a little higher.

Something about revving my car high, and ebay cams, doesn't go together....

Congrats to the o/p

*Tatanko* · 05-10-2008, 11:32 AM

Quote:

Originally Posted by codyace

Something about revving my car high, and ebay cams, doesn't go together....

Congrats to the o/p

The knockoff cams are by no means "low quality." They have used by plenty of people.

MorpheusZero · 05-10-2008, 12:53 PM

Quote:

Originally Posted by Kevlo911

What are the benefits of a returnless style setup on a 30? Mad props man, I wish I could crack the 220 mark and I would be happy lol

Lower fuel temp?

*DandyMax* · 05-10-2008, 11:08 PM

Quote:

Originally Posted by 98SEBlackMax

Nice numbers!!! and I don't say that often.

It's near what I want to make in power on a 3.0. Gives me some more motivation for my own build. With the right combination these 3.0s don't have a problem with making power up top, just a problem staying together.

There is definitely more power available in the engine if one were to get the heads ported and do up the bottom end to rev mid 8000's, bump compression etc. But I wasn't prepared to invest that much in it. I'm focused on my 3.5 now.

Quote:

Originally Posted by MorpheusZero

Lower fuel temp?

Yes, significantly. And as a bonus, simpler plumbing with the engine swap etc...

Quote:

Originally Posted by MorpheusZero

Power valve removed = close to gutted, that's all I needed to know.

To me that's not gutted at all... lots of material left inside there still if one wanted to truly gut it.

Quote:

Originally Posted by MorpheusZero

If you massage them they will relax a little which will improve flow.

Tried that, all I got was a couple of blisters for my trouble.

*accordingtou* · 05-10-2008, 11:18 PM

Great #'s
Are the hr springs & shims you used Stronger or cheaper than the JWT set?
im planning to rev up to 7500 with jwt springs in my 3.5, what do you think?

MorpheusZero · 05-11-2008, 12:02 AM

Quote:

Originally Posted by DandyMax

There is definitely more power available in the engine if one were to get the heads ported and do up the bottom end to rev mid 8000's, bump compression etc. But I wasn't prepared to invest that much in it. I'm focused on my 3.5 now.

I want to hear it at eight grand.

In fact, I want to hear it at mid 7s... where are your sound clips dammit

Quote:

To me that's not gutted at all... lots of material left inside there still if one wanted to truly gut it.

Alright, but removing the power valve >> regular 00vi for top-end, we can agree on that...

Quote:

Tried that, all I got was a couple of blisters for my trouble.

You are not using the proper swedish injector massage oil

I also heard sweet talking them one at a time before a run can help

*DrunkieTheBear* · 05-11-2008, 01:55 AM

HEHE, My car is being built exactly like dandy's except I'll be adding a few other things here and there. Could I be the first VQ to break the 300whp mark

Its not gonna happen I know.........

MorpheusZero · 05-11-2008, 02:59 AM

Good luck getting another 30whp over dandy with "a few other things"

if you pull 100whp/liter off I will be very impressed to say the least, especially on an auto

(I assume you're going to swap to a manual before you do build the motor...)

*DrunkieTheBear* · 05-11-2008, 08:09 AM

Quote:

Originally Posted by MorpheusZero

Good luck getting another 30whp over dandy with "a few other things"

if you pull 100whp/liter off I will be very impressed to say the least, especially on an auto

(I assume you're going to swap to a manual before you do build the motor...)

a man can dream....

*DandyMax* · 05-11-2008, 10:04 AM

Quote:

Originally Posted by accordingtou

Great #'s
Are the hr springs & shims you used Stronger or cheaper than the JWT set?
im planning to rev up to 7500 with jwt springs in my 3.5, what do you think?

Which cams (ie how much lift?). Check out this graph. It tells the story. The HR springs + shim set are slightly cheaper than JWT from DaveB IIRC.

Quote:

Originally Posted by MorpheusZero

I want to hear it at eight grand.

In fact, I want to hear it at mid 7s... where are your sound clips dammit

I may yet make another video or 2 before pulling the engine out of the car. In the interim I'm working on videos from the track yesterday.

Quote:

Originally Posted by MorpheusZero

Alright, but removing the power valve >> regular 00vi for top-end, we can agree on that...

Yes. That's part of the reason my 2005-2008 comparison shows a loss before 5000 rpm. And the cams play into it a bit too, especially lower down.

Quote:

Originally Posted by MorpheusZero

Good luck getting another 30whp over dandy with "a few other things"

if you pull 100whp/liter off I will be very impressed to say the least, especially on an auto

(I assume you're going to swap to a manual before you do build the motor...)

The 100 hp/L mark is based on estimated crank numbers, tranny shouldn't matter if you use the appropriate loss percentage when back-calculating the crank # from the whp number.

*liqidvenom* · 05-11-2008, 10:34 AM

i must say this is a very very nice setup. EU is doing alot for us in regards to tuning.

*knight_yyz* · 05-11-2008, 11:01 AM

Great numbers Dan! did you beat your record at the track?

i30dvr · 05-11-2008, 11:18 AM

not to flame the thread or anything cause DANDYMAX is the Motherfu....man but where is the "power valve" in the OOVI. Obviously dandy ur not going to tell us all ur secrets but i'm trying to hit 200whp in my dek swapped auto. I hit 180whp now...i have a vafc...what do you recommend to best get me to my goal and beyond?

*ajcool2* · 05-11-2008, 11:53 AM

Quote:

Originally Posted by i30dvr

not to flame the thread or anything cause DANDYMAX is the Motherfu....man but where is the "power valve" in the OOVI. Obviously dandy ur not going to tell us all ur secrets but i'm trying to hit 200whp in my dek swapped auto. I hit 180whp now...i have a vafc...what do you recommend to best get me to my goal and beyond?

ibsomebodysaysswapina5speed

i30dvr · 05-11-2008, 12:13 PM

ahah yea man...i wish i could do that...but idk like i've paid for everything that i've done to my car and my parents said the car is devalued which it is because of the dek swap but because i don't plan on selling anytime soon i don't understand what there hesitation is on me swapping to a manual. But they did say i could do the 3.5 which makes no sense and seeing the power that dandy made out of the 3.0 makes me just wanna keep this to see how much more i can extract.

*JonBlz* · 05-11-2008, 12:45 PM

Wow that's crazy 3.0 for life LOL

MorpheusZero · 05-11-2008, 01:06 PM

Quote:

Originally Posted by DandyMax

The 100 hp/L mark is based on estimated crank numbers, tranny shouldn't matter if you use the appropriate loss percentage when back-calculating the crank # from the whp number.

100whp/liter > 100bhp/liter

*DandyMax* · 05-11-2008, 01:24 PM

Quote:

Originally Posted by MorpheusZero

100whp/liter > 100bhp/liter

Um yeah, just go ahead and ignore my last comment, must have had some kind of brain fart. When I go back and re-read your/his posts now it all makes sense. Carry on..

i30dvr · 05-11-2008, 01:28 PM

Quote:

Originally Posted by DandyMax

Hah ok ignore my last comment, I went back and re-read your/his posts... I mis-read the first time. Carry on..

dandy- any opinions to my above post? if you want we can talk through pm

*DandyMax* · 05-11-2008, 01:31 PM

Quote:

Originally Posted by i30dvr

dandy- any opinions to my above post? if you want we can talk through pm

Yes PM me please so we don't clutter the thread...

*95maxrider* · 05-11-2008, 01:36 PM

Quote:

Originally Posted by i30dvr

ahah yea man...i wish i could do that...but idk like i've paid for everything that i've done to my car and my parents said the car is devalued which it is because of the dek swap but because i don't plan on selling anytime soon i don't understand what there hesitation is on me swapping to a manual. But they did say i could do the 3.5 which makes no sense and seeing the power that dandy made out of the 3.0 makes me just wanna keep this to see how much more i can extract.

Screw a 3.5, you've already got the DE-K in the car. Don't listen to your parents. If you're paying for it, it shouldn't matter what they say unless you plan on selling your car sometime soon. Just run the DE-K into the the ground like me and be happy

5 speed swap+EU=220 whp

*DrunkieTheBear* · 05-11-2008, 03:11 PM

Well I start my project soon, I am buying my engine this month and start work on it. It should be done in December and I will post numbers then.