BD 4" exhaust

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I was wondering if anyone has had any experience with the BD 4" exhaust. It is available from the cat back for $350. My latest thinking is to go for the banks stinger plus, minus the exhaust, and the BD exhaust.
Thanks,
Jack

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97 Red, slide in camper, horse trailer, K&N air, 255. 85. 16 big o xt

 

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Why do you want the 4" exhaust? Performance?
Seems there are bigger motors (more hp) out there running the stock exhaust. You should run, not walk to the topic "4" exhaust", which you will find 1/2 down the 1st page of topics.

Take this advice, bring your lunch.

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98. 5,24v,3/4 ton,2wd,lsd,5sp
blue box hp enhancement

 

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horseman,

I have a 4" cat back exhaust from Jardine. It was $300. 00 including the freight. The local muffler shop put it on for $30. All the parts were there and everything fit perfectly. It has a chrome 4" turndown tip.
The noise level is a little higher.

I had my pyrometer on the truck and the before and after temps were about 100-150 degrees lower after removing the stock muffler/tailpipe and using Jardine's straight thru muffler and 4" tailpipe.

I have lost their 800 number, but they are located high up in the Rockies at Dubois, WY. Several of my friends have their system too.

Bill



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97,3500,CC,4x2, Auto, 4. 10LSD, All Options incl Leather, PacBrake, 3 Pos Lockup Switch, PrimeLoc, Jardine 4" Cat-Back Exhaust, 45 Gal. RPM Aux Fuel Tank, Mag-Hytec Covers, Painless Wiring Kit, Reese 20K Hitch, 80% Towing 12,000+LB 5th Wheel

 

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I have the BD 4" exhaust. I went from 32 psi to 34 psi,lost 100 degrees on the egt. All of the gains are from a stock system. The kit came complete with all the parts needed, it was a breeze to install.

 

[Archive]

I have the BD 4" exhaust. I went from 32 psi to 34 psi,lost 100 degrees on the egt. All of the gains are from a stock system. The kit came complete with all the parts needed, it was a breeze to install.


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97 2500 CC 4x4 5 speed #5 tst 4" exhust 16cm turbo Pro-Zap front bumper Reunel rear bumper

 

[Archive]

For the guys that are reporting lower EGT's are your pyro's installed pre or post-turbo? I'm thinking that if it's post turbo maybe the adjustments you need to make to the temp is different. Just guessing at it and thinking it through in my head.


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-Steve St. Laurent
'98 Quad Cab Long Bed, 4x4, ISB, 5sp, 4. 10 LSD, Prime-loc remote fuel filter,
boost & pyro gauges, Permatech spray in liner, Grizzly stainless nerf bars,
BFG 285/75R16 AT KO's
http://my. voyager.net/stevest

 

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My egt probe is pre turbo.

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97 2500 CC 4x4 5 speed #5 tst 4" exhaust 16cm turbo Pro-Zap front bumper Reunel rear bumper

 

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I keep reading about guys getting 34-35 lbs. of boost, how do you do this and where are you reading it from. I never get over 19.

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99'24v ISB QC SB 4x4 SLT LARAMIE BD Brake BD AutoLoc 3. 54 LSD Auto Pulling a 3 Horse Slant American trailer and my 2 Morgans.

 

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Warning! This is an unofficial response. I have to believe that those figures are from modified, tinkered with engines. I do not believe you will be able to achieve those boost figures with a stock engine. Note: Evans topic "boost on isb", that sneaky dog disconnected his wastegate. Cheater! Stop that!

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98. 5,24v,3/4 ton,2wd,lsd,5sp
blue box hp enhancement

 

[Archive]

The gains I reported,were from a stock exhaust system. I had already put in a #5 TST fuel plate and a 16cm turbo.

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97 2500 CC 4x4 5 speed #5 tst 4" exhaust 16cm turbo Pro-Zap front bumper Reunel rear bumper

 

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If you look at the bottom--they are talking about boost on the 12 valve b-series engine, not the ISB

 

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My pyro is pre-turbo as it has been on all the diesels I have owned. I have an ISB and it has more boost then 30lbs. More boost then 35 lbs.

SCOTT
P. S. I am my own warranty station and I am aware of boost limits and fuel limits etc.

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Lift it, flip it or...
RAMIT!

 

[Archive]

Scott1, did installing the TST kit kick your boost up or did you "cheat" like Evan? What was your boost levels before upgrades? BTW I wish I'd noticed you live in Calgary, I could have looked you up and seen your truck on my way to Edmonton a couple weeks ago. Found out it's easy to get lost in Calgary coming up hiway 22!! Beautiful country in Alberta though . . .

 

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I have the ecm rewritten and I have altered the turbo orifice as well as added my own 4 inch exhaust and my Scotty Air system. I believe I did something similar to what Evan did to his turbo and he helped fine tune the Scotty Air Cone. From what I hear, Ted Jannetty has a real good 4 inch exhaust available.

SCOTT
P. S. My boost went up to 30-32 with the re-write, then it went up to 35 with the injectors and then to 37 with the exhaust.
As soon as the turbo spools up I have got lots of power. I know for a fact the I am getting a very good match of fuel and air on this truck.
My factory boost was sick SICK S I C K!
I had a max boost of about 16 and it averaged 14. 2.

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Lift it, flip it or...
RAMIT!

 

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hvac...

I know, I'm a sneaky one. I did it not for the higher maximum boost, but for more boost at lower RPM's. I did before and after testing, and the boost was slightly (1-4 psi) higher all throughout the RPM range when accelerating. It feels a lot stronger at lower RPM's. Try it!!!



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Evan A. Beck
98. 5 2500, 4x2, RC, ISB, A/T, Forest Green/Driftwood, 38,000 miles
4" Exhaust, Jacobs E-Brake, K&N Filter, Auto-Meter Ultra Lite boost & pyro, turbo silencer ring removed, plus many other cosmetic modifications

 

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I'm sorry Evan, but you can not get more boost in lower rpms by disconnecting your wastegate, The wastegate is spring loaded shut and the boost line only assists to open the gate at max boost, So the wastegate is always closed except when there is enough boost to overcome the spring.
As I explained before you are going to set a fault code, that will reduce fuel delivery on 24 valve models!

Ted Jannetty

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Owner and President, Jannetty Racing Enterprises Inc.
97 Dodge 3500 manual trans, US gear overdrive, 3. 54 posi, 235/85R16, mods- JRE Stage III Power Kit, 300hp injectors, JRE 4" Exhaust Kit, Cummins Chrome Kit, Prime Loc,
2 gauge dash mount with 50 lb boost guage and EGT. 97 Ski-Doo Formula 500 Deluxe/ Turbocharged 670 engine

 

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I am really curious if someone has collected pre and post 4" exhaust data (egt and boost) change on a "TRUE" stock engine. All I have seen thus far is data on engines than have had the fuel turned up. I am not suprised by positive changes with turned up trucks but those of you reading with stock trucks and plan on keeping stock trucks should have this data as it relates to their application. DONT expect the effects on a turned up engine to also apply to stock trucks!

If you are running 30 - 40 psi boost I would expect to see a drop in EGT and "possibly" an increase in boost. Booth occur at the higher end of the rpm range when one is making and moving lots more air/power. HP output is now closer to or over 300 vs 160 - 200 stock.

I still have doudts that on a stock 160 or 180 or even 215 hp 12V (... when no computer is influencing the results), one would see a measurable drop in egt and/or a increase in HP by increasing the exhaust only. Are any stock engines ever getting to 1300 EGT pre turbo. If not, dropping 100 degrees means very little as your not at a point that you need to backout yet. You gain 1 or 2 psi boost... . I can see that or more with in 24 hours when pulling through daytime temps in the 90s and late night temps in the 50s.

Now if the modification takes your boost from 18 or 24 to say 28 or 34 you will definetly take notice.

jjw
ND

 

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Yeah Evan, I am going to adjust the wastegate
with some additional parts to about 30/32 lbs. This is what one of my horsepower docters is suggesting. We will do this when we install the "MONSTER INJECTORS". I may just install some sprinkler heads, and a cross body fuel tank. I am told that 4 lbs. of boost will decrease egt by 100 deg. With mods going on I will see more egt. Though there must be a limit to boost levels right?
We read about one guy blowing the line to the intercooler a couple days ago.

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98. 5,24v,3/4 ton,2wd,lsd,5sp
blue box hp enhancement

 

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closing and moving to the products forum.

 

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I had an ATS 4" muffler and exhaust installed. Scheid also was able to make it 4" from the exhaust elbow all the way down -- which I think made a big difference (why bother with 4" cat back when there is still 3" pipe leading from the engine?). My EGT is 2-300 degrees less when towing trailer with the PowerMax1 on. The temp difference alone justifys it in my opinion. I also see 2 more lbs of boost but like I said the main thing for me is the reduced temp -- 1200 used to be pretty easy to hit climbing interstate hills with the trailer.

(that's manifold EGT)

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Big MAK
98. 5 ISB 5spd 4x4 Quad Cab 3500, 4" Exhaust elbow down, PowerMax1 https://www.turbodieseltrucks.com


[This message has been edited by Mark Kitchell (edited 09-17-1999). ]