'98 Boost limits
Thread Starter
Joined: Sep 2009
Posts: 979
Likes: 13
From: League City, TX
'98 Boost limits So as well all know 98's are limited to 14.7 lbs of boost. Now if one wanted to up their boost without shelling the cash out for an extremely pricey aftermarket system like BS3, what all would need to be changed? I know the PCM and wiring harness, but what else? Any sensors?
And if one did go with BS3, what benefits would that really provide over a 99+ wiring system if you're running a mainly street car, D1SC Procharged at ~800 rwhp? I know it has a ton of features but really what good would they do over a stock PCM in a boosted application?
Thanks guys!
And if one did go with BS3, what benefits would that really provide over a 99+ wiring system if you're running a mainly street car, D1SC Procharged at ~800 rwhp? I know it has a ton of features but really what good would they do over a stock PCM in a boosted application?
Thanks guys!
Wrong section bro!
You just have to repin the connector to the pcm and change one sensor. Dont remember which one off the top of my head.
Bs3 is a lot of money for what your doing. Just use a newer pcm with a SD tune... imo
You just have to repin the connector to the pcm and change one sensor. Dont remember which one off the top of my head.
Bs3 is a lot of money for what your doing. Just use a newer pcm with a SD tune... imo
cant answer the first but ill take a shot at the second
i have a 98 and i put bs3 on it because the stock computer doesnt do these things that i wanted for my turbo street car
-2 step
-staged fuel pump control
-autmatic on board data logging (DAI)
-4l80 control
-closed loop wideband control
-3 bar speed density spark/fuel
-low z injector control
-instant tune updating (press enter after any change while live to ecm)
its pricey but maybe have a look in the used market? i got a used one for about half price for my typhoon and it worked out fine.
i have a 98 and i put bs3 on it because the stock computer doesnt do these things that i wanted for my turbo street car
-2 step
-staged fuel pump control
-autmatic on board data logging (DAI)
-4l80 control
-closed loop wideband control
-3 bar speed density spark/fuel
-low z injector control
-instant tune updating (press enter after any change while live to ecm)
its pricey but maybe have a look in the used market? i got a used one for about half price for my typhoon and it worked out fine.
Thread Starter
Joined: Sep 2009
Posts: 979
Likes: 13
From: League City, TX
cant answer the first but ill take a shot at the second
i have a 98 and i put bs3 on it because the stock computer doesnt do these things that i wanted for my turbo street car
-2 step
-staged fuel pump control
-autmatic on board data logging (DAI)
-4l80 control
-closed loop wideband control
-3 bar speed density spark/fuel
-low z injector control
-instant tune updating (press enter after any change while live to ecm)
its pricey but maybe have a look in the used market? i got a used one for about half price for my typhoon and it worked out fine.
i have a 98 and i put bs3 on it because the stock computer doesnt do these things that i wanted for my turbo street car
-2 step
-staged fuel pump control
-autmatic on board data logging (DAI)
-4l80 control
-closed loop wideband control
-3 bar speed density spark/fuel
-low z injector control
-instant tune updating (press enter after any change while live to ecm)
its pricey but maybe have a look in the used market? i got a used one for about half price for my typhoon and it worked out fine.
And I thought the factory PCM was capable of a 3bar SD Tune? Or are you referring to something else entirely.
Oh! And I've seen some guys with dual Walbros like you who have their second pump boost activated. Not sure if they were running BS3 or not, but is that a BS3 only feature or can that be done on the stock PCM as well?
Thanks guys
nah I put it here on purpose, since it's related to forced induction and this place gets more views
I've noticed a lot of ppl mention the onboard data logging, why is that such an important feature? Can't you log your data using HPTuners or something like that (I'm COMPLETELY new to the electrical parts of Fbodies so bear with me haha)
And I thought the factory PCM was capable of a 3bar SD Tune? Or are you referring to something else entirely.
Oh! And I've seen some guys with dual Walbros like you who have their second pump boost activated. Not sure if they were running BS3 or not, but is that a BS3 only feature or can that be done on the stock PCM as well?
Thanks guys
I've noticed a lot of ppl mention the onboard data logging, why is that such an important feature? Can't you log your data using HPTuners or something like that (I'm COMPLETELY new to the electrical parts of Fbodies so bear with me haha)
And I thought the factory PCM was capable of a 3bar SD Tune? Or are you referring to something else entirely.
Oh! And I've seen some guys with dual Walbros like you who have their second pump boost activated. Not sure if they were running BS3 or not, but is that a BS3 only feature or can that be done on the stock PCM as well?
Thanks guys
you can do a lot with the stock computer, add manual switches, change the o.s. buy and tune (or pay tune) with hpt, injector driver piggy back box, wideband interface etc.
but they all cost money.. money that could go toward a single all inclusive solution.
but they all cost money.. money that could go toward a single all inclusive solution.
Thread Starter
Joined: Sep 2009
Posts: 979
Likes: 13
From: League City, TX
I suppose $600+ for Advanced HPTuners alone is already about 1/3 for BS3 new, and BS3 has more features...
Damn you LS1Tech and members for making me want to include things that were not originally planned or called for
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I was at that crossroad at one point...
I went the '99+ pcm route...if you know your way around an electrical schematic its a piece of cake...time consuming but not hard at all. I went that route due to the fact that I didn't have the cash to drop $2k+ on a complete standalone system. I also went old school with some of my wiring like the secondary pump is manually switched along with the fans and other misc items. You can have these things automatically triggered but its up to you. HPT, EFI Live or Megasquirt are all capable of supporting your boost app needs. I'm doing the 3bar HPT system with a WB that I have yet to purchase...probably Dynojet since I had good luck with it on my '03 Cobra.
Now...if I could do it all over again with the cash in hand I would definitely go BS3 due to the fact that its pretty all inclusive like MM stated. Good luck either way!
I went the '99+ pcm route...if you know your way around an electrical schematic its a piece of cake...time consuming but not hard at all. I went that route due to the fact that I didn't have the cash to drop $2k+ on a complete standalone system. I also went old school with some of my wiring like the secondary pump is manually switched along with the fans and other misc items. You can have these things automatically triggered but its up to you. HPT, EFI Live or Megasquirt are all capable of supporting your boost app needs. I'm doing the 3bar HPT system with a WB that I have yet to purchase...probably Dynojet since I had good luck with it on my '03 Cobra.
Now...if I could do it all over again with the cash in hand I would definitely go BS3 due to the fact that its pretty all inclusive like MM stated. Good luck either way!
We have a section for that on the board and the FI section as well. (So the search is your friend my friend!) And google Big Stuff 3 (almost sounds like a **** search lmao) and you will come up with a lot of info!
A lot of the wiring is different on the 98's vs 99's, ECT sensor for example is 3 pin, vs. 2 pin on 99+. It's quite a bit more than just swapping PCM's. If you want boost on a 98, get a new standalone, BS3, Holly Dominator ECU, etc. Or go 99+ car.
Thread Starter
Joined: Sep 2009
Posts: 979
Likes: 13
From: League City, TX
Btw, 'Trust', a reply you made me a post back in August that I missed is the whole reason I made this thread
Launching!
Joined: Apr 2010
Posts: 285
Likes: 0
From: Sand Springs, OK
http://bigstuff3.com/BigComm_04012011_setup.zip
Link to the BS3 tuning software.
I downloaded the software just to check it out vs using hp tuners or tunercat.
Easy to use interface, it includes a .bin file to work with in offline mode.
Kinda like a try before you buy on the software end. Hope that helps.
Link to the BS3 tuning software.
I downloaded the software just to check it out vs using hp tuners or tunercat.
Easy to use interface, it includes a .bin file to work with in offline mode.
Kinda like a try before you buy on the software end. Hope that helps.
