how do you get more boost???

mark45678 · 02-21-2002, 17:14

can any one tell me the best/most controlable way to get more boost on my 2001 dmax?its stock except the air filter and air box for now.

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01 GMC K 2500 HD D/A Xcab polo green loaded
JL audio bumper to bumper
luverne stainless nerf's
ispro egt and boost gauge
roll-n-lock cover

98 k-2500 6.5td 3.73,
3 inch exhaust&cross over
no cat!
jk boost control w/#13 chip
K&N
GM boost gage
Isspro EGT
TRADED IN.....on 2001hd

93-C2500 6.5td
3" exhaust
K&N
tweeked pump
boost control
170k with minor problems

Y2K honda CBR1100xx nutbike

Kennedy · 02-21-2002, 17:55

Put a Dynomite box on it!

Havent seen yet if the Duramaximiser gives more boost or not.

Aside from that, exhaust. We haven't been hitting peak boost and popping the wastegate, so unless you can get more fuel/airflow...

------------------
John Kennedy
www.kennedydiesel.com
John@kennedydiesel.com
2002 Chev. K2500HD Dmax/Allison Crew Cab Long Bed Pewter/Tan LT Driving it!!!
1996 GMC K2500HD 6.5TD Ex.Cab LWB 260+ Rw H.P.
1984 K30 SRW 6.2NA Headers and custom 2 into 1 exhaust FOR SALE
'01 FXDWG Black/Chrome Yellow (2 into 1 Thunderheader <naturally&gt

(100+ RwHP)
"If I had to explain, you wouldn't understand"

**PEANUTGRWR** · 02-21-2002, 18:27

IF YOU JUST WANT MORE BOOST WITH OUT BUYING A BOX JUST PUT A SMALL NEEDLE VALVE IN YOUR WASTE GATE LINE AND OPEN IT A LITTLE. YOU CAN ADJUST IT TO GET WHATEVER BOOST YOU WANT. YOUR NOT GOING TO SEE MUCH IF ANY POWER INCREASE DOING THIS BUT YOU WILL BE ABLE TO BUILD MORE BOOST FROM MY EXPERIENCE. GET LIKE AN AQUARIUM VALVE. ITS THE VALVE IN A FISH TANK THAT CONTROLS HOW MANY BUBBLES YOU SEE IN IT. CHEAP AND SIMPLE!!!

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'01 CHEVY D/A REG CAB 4X4
BULLY DOG PROPANE INJECTION.
http://www.picturetrail.com/gallery/...ame=peanutgrwr
AUTO-METER GUAGES & POD
B-D DYNOMITE BOX
HUSKY FLOOR MATS
AMSOIL AIR FILTER
5 INCH EXHAUST!!!!
MY AIR BOX LOOKS LIKE SWISS CHEESE

DONT MESS WITH THE DURAMAX ON CRACK!!!

**mackin** · 02-21-2002, 19:58

With more boost,you must add additional fuel correct? So if you do not up fuel pressure , what's the point?
MAC

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2001 CHEVROLET
BIG DUALLY D/A LT
BLACK EXT. GRAPHITE LEATHER
INT. AMSOIL BUMPER TO BUMPER
2001 MONTE CARLO SS

pics

**SoCalDMAX** · 02-21-2002, 20:23

mac,

You'll see a slight increase in performance, not huge, but noticeable. Also, my EGTs have dropped 150* under the same conditions with a stock exhaust. For only $5, it's the cheapest mod around.

Also, with a MAF, doesn't the injection system add more fuel as air flow increases?

Regards, Steve

[This message has been edited by SoCalDMAX (edited 02-21-2002).]

**mackin** · 02-21-2002, 21:05

well then let's see some pics of this waste gate mod. Hows about it ? For $5.00 bucks what to H***.
MAC

------------------
2001 CHEVROLET
BIG DUALLY D/A LT
BLACK EXT. GRAPHITE LEATHER
INT. AMSOIL BUMPER TO BUMPER
2001 MONTE CARLO SS

pics

**SoCalDMAX** · 02-22-2002, 12:25

mac,

I'm at work, forgot my camera at home. I'll try and post pics. Sat. AM.

Regards, Steve

**SoCalDMAX** · 02-23-2002, 13:18

Hi Mac,

As promised, pics of wastegate. I'm not using a valve, mine's just disconnected, but it would be very easy to tee in a valve and bleed off boost. I'd recommend the valve method if you really want to do this.

Here: wastegate

Regards, Steve

------------------
'02 2500HD 2WD LS, grey, CC, SB, D/A, locking diff., alloys, trailer and towing pkg. Delivered 11/09/01
So far:
Bully Dog Max Power Plug, PS2000 propane, 255/85-16 Dunlop Radial Rover A/T tires,
Pillar mounted SPA Boost/EGT/oil press./temp gauges, Valentine One
Aiwa CD/MP3 head, 4- Pioneer TS-C1653 6.5" component spkrs, 2-10" Tsunami subs,1200W of Visonik amps
Jordan 2020 Ultima Brake Controller, Lucerix mirrors, Line-X, Bed X-tender, DeeZee running boards
PIAA headlights, Power tailgate lock, Invinca-shield, Husky flaps and tinted windows
Amsoil air filter and gear lube, Fumoto valve

Up next:
4" exhaust, Peragon bed cover, high idle, Allison deep sump, tranny oil temp., rear diff. oil temp., Mag-Hytech diff. cover, Spare fuel tank?
Truck Pictures

**mackin** · 02-25-2002, 17:54

Looks easy .Thanks
Now for the bad part any real danger?
MAC

**pullinpower** · 02-25-2002, 22:04

SoCal,wouldnt we need more fuel to make more power,I done this mod and I saw 28psi peak boost and seemed to spool up faster but then I rehooked it back up and it seemed faster.Could you use your G-tech and see if it makes a diff. in times?

**SoCalDMAX** · 02-25-2002, 22:23

pullinpower,

To me, it seemed faster with more boost, but then I'm running a Power Plug.

Does anyone know if the MAF automatically adds more fuel based on increased airflow?

Unfortunately, I've sent my G Tech Pro to John Kennedy as a loaner while I try to fix his.

Regards, Steve

**Amianthus** · 02-27-2002, 10:06

The only substantial way to build more boost is to add more fuel. But your turbo will only generate boost to a certain point. After that point, adding more fuel will only add heat to your engine. You may build more boost, but you won't gain anything.

Also, be careful about disabling your wastegate. This gets back to the whole turbine efficiency issue. If you try to pound more gas through the turbo than it can efficiently use, you will do nothing but generate heat. But if you dump the excess gas straight out the tailpipe, you will not have such a heat problem.

**Duramaxerado** · 02-22-2003, 21:18

ya always comes a time when ya clock the turbo too hard.
at some point its just out of compressor.
all dpends on what you power goal is.

mark45678 · 02-22-2003, 21:32

duramaxarado: I see you have a horse power problem

3 mm kit in a busa! My buddy did a busa at the end of last summer after a LOT of tuneing we got 206 RWHP with out a turbo! I just wished I had that hp in my blackbird.....Well in any case I now have a 4" exhaust and 120hp box and about 29,000 mile with the go fast stuff installed! 45K total... I neet being able to smoke those kids with there little fart pipe fwd cars!

**Duramaxerado** · 02-22-2003, 21:38

Mark, my buddy made almost 500 hp with a busa today..

Look on the members forum at the thread I just posted for a link.

My busas a 13-1 compression 1397cc with nitrous.

I can get you hooked up with my local buddy here who has a sweet xx.. He makes about 300 rwhp with it. My buddy Dennis in the other link above set up the bike and tuned it.. Its a blow-through carb set up..

Big hp bikes rule.. there is nothign like it!!

Here are some photos..

**Duramaxerado** · 02-22-2003, 21:41

Mark, go here man..

http://forum.thedieselpage.com/ubb/u...&f=10&t=002876

**orange2** · 02-22-2003, 21:43

Blackbird, thats a cruiser ain't it? I had an xc800 too, got a vert escape now. You wanna go fast get a 12 or busa, Doesn't a Hahn blackbird with a turbo hold the record in a quarter or has a Nlr bike beat it? Right up you alley fastgixx, I can't spell duramaxurado as easy so Fastgixx it is.

**orange2** · 02-22-2003, 21:48

All this turbo talk is making me feel funny, Who made the 500hp, let me guess NLR? Wasn't Ranger was it.

Anyway back to the duramax, how much boost can one take before they go boom? Has anyone had a headgasket problem yet?

mark45678 · 02-22-2003, 21:54

orange2 A good friend of mine has a 100% stock 2001 with 85K on it, blew a head gasket got it back and started skipping then got 1 new injecter.... why dont know but he hauls a med duty low boy from FL to MA about every 20~30 days....

**Duramaxerado** · 02-22-2003, 22:00

hahaa.. cruiser..

My buddies xx is pretty damn fast!! He can walk on me till I get on the button and then its a close race.. He is running a mc express interscooled turbo system @ 15 psi. Its a sweet ride and he has done a ton of other stuff to it.

Both Team NLR ( Larry Laye ) and Velocity Racing ( Barry Henson ) have been in the 7's on busas in prostar street bike shoot out class ( SBS ) 68 inch class

This is balls to the wall.. DOT racing slick and no wheelie bars.. Try to control a 400 hp bike like that and run 7's in the qtr at 185 + mph.. Its quite a task..

Both of them are DAMN good riders!!!

At 6'5'' 215 lbs I cant get out of the mid 9's on my bike.. But thats running all motor on a stock wheelbase. My buddy Lloyd took it LOW 9's on motor alone on his first pass on it. Never sprayed at the track..

I have run about 18 lbs of nitrous through the bike so far but its all been on the open road from 130 mph to 200 + mph..

It makes for great fun when you can hoik up a wheelie at 140 mph on the button while riding with others.. You should see the look on their faces when you pick it up a couple feet and leave them like their sititng still!!

ahhh.. what a rush!!

Im taking the Turbo GSXR 1000 and my 1397 nos busa to motorheads next month for some play time and tuning on the dyno.. Can't wait.

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