BS3 Install on stock Typhoon

denny

Active member
Re: BS3 Install on stock Typhoon

This is great, i am downgrading and have a BS3 wiht syty plug-n-play harness for sale if anyone interested.
I will do the same $1850.
 

0966Sy

Code what?
Re: BS3 Install on stock Typhoon

BS3 install complete yet?

I havent had time to get back on it yet, I will have alot of endless time come October 1st to finish it and start tuning. Plug n play would have been nice at this point, but the truck just looks so much cleaner with out all that unused wiring laying around.
 

0966Sy

Code what?
Re: BS3 Install on stock Typhoon

Ok so an update, all my sidework is complete. This brought me enough time to finish the new work bench in the garage and im back to the BS3 Install. It's not going to be somthing i'll be working on everyday but will be done soon, at least the goal is by the new year. Got the bulkhead harness on the bench and will be putting everything on paper then putting it in the truck.
 

0966Sy

Code what?
Re: BS3 Install on stock Typhoon

Finished up the harness for the fuse panel/bukhead. It's basically going to split into 3 sections coming out of the bulkhead connector. The section i just finished connects too: ECT for guage, Wiper motor, Oil pressure sensor, alternator power to fuse panel/and firewall power, two wire alternator plug, engine ground, starter wire (purple wire), coil wire (pink). The second section will be my next task, it will include everything for the AC system. Most of the green wires from the picture on the first page and a few relays. The third section is the transmission VSS and the TCC lockup harness, very long and unseen as it will go under the booster.

Pic of what i have done on the bench to get the idea
100_1871.jpg


A pic of how clean the firewall is without the factory harness, you can see it's size in the first page. The firewall will have two map sensor's and a coil mounted to it.
100_1872.jpg
 

RealFastV6

@jb_and_his_coffee
Re: BS3 Install on stock Typhoon

Why 2 map sensors?

Also it looks like you removed the coolant temp gauge sensor wire from the bulkhead connector. That's one that you'll need to keep. What did you do with your fuel pump wiring / oil pressure switch?
 

0966Sy

Code what?
Re: BS3 Install on stock Typhoon

Why 2 map sensors?

Also it looks like you removed the coolant temp gauge sensor wire from the bulkhead connector. That's one that you'll need to keep. What did you do with your fuel pump wiring / oil pressure switch?

I have an electric boost guage that uses a map sensor, the temp sensor connector is there, it's the single green wire. Fuel pump wiring on a TY is routed through the cab from inside the truck, although the BS3 has a fuel pump connector inside by the ECU I may end up using. The SyTy does not use a oil pressure switch, just a pressure sender for the guage. It doesnt care if you have oil pressure or not, it's going to start regardless. The connector is in the harness I just finished.

Forgot to mention it goes in the truck like a "T" the harness runs over the booster then the leg of the "T" runs along the Left side valve cover to the alternator. The other end goes to the firewall + post and to the oil pressure sender and to the starter. The wiper motor plug runs under the booster unseen.
 

RealFastV6

@jb_and_his_coffee
Re: BS3 Install on stock Typhoon

I have an electric boost guage that uses a map sensor, the temp sensor connector is there, it's the single green wire. Fuel pump wiring on a TY is routed through the cab from inside the truck, although the BS3 has a fuel pump connector inside by the ECU I may end up using.
The SyTy does not use a oil pressure switch, just a pressure sender for the guage. It doesnt care if you have oil pressure or not, it's going to start regardless. The connector is in the harness I just finished.

Ah I didn't see the coolant sensor wire in the pic on my iPad.

There *is* an oil pressure switch, but yes it'll start regardless. I removed that loop when I rewired for XFI. If you look at the oil pressure switch \ sensor itself, you'll see 3 pins in use (A C and D). You can remove the two of them that go to the "switch" (C and D), and leave just the single wire that feeds the gauge (A - Tan wire). From there I ran power to the relay from key-on, and ran a new single (ground) trigger to the XFI to control the pump. I couldn't think of a good reason to leave that loop in there since I had to rewire the relay anyways because the XFI triggers only grounds.

The fuel pump wiring goes from the relay into the bulkhead connector, but it doesn't run through the cab, it just just loops back out the bulkhead connector on the rear lamp harness and goes under the truck.

Forgot to mention it goes in the truck like a "T" the harness runs over the booster then the leg of the "T" runs along the Left side valve cover to the alternator. The other end goes to the firewall + post and to the oil pressure sender and to the starter. The wiper motor plug runs under the booster unseen.

I dig it. :tup:
 

0966Sy

Code what?
Re: BS3 Install on stock Typhoon

Great info, thanks for sharing. Im running one of those racetronix fuel pump relay harness to the alternator. I'm powering the fuel pump circuit with the BS3 (ground controllled). When you mentioned the fuel pump wiring I was only thinking of the wires for the sender for the guage. Yep the stock fuel pump relay is history
 
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0966Sy

Code what?
Re: BS3 Install on stock Typhoon

So after getting the racetronix fuel pump relay powered up from the primary trigger wire on the BS3. I have moved on back to C101 under the dash by the ECM, this connector has multiple inputs into the ECM and provides most of it's outputs to the IP (instrument panel) for guages such as the Tach, ENG lamp, Boost guage, low turbo coolant, and inputs to the DRAC. Im pretty familiar with what the engine side of the harness provides to C101 and where it goes on the IP side in the cab where the 10pin connector resides by the factory ECM. What I have so far seems as if the only input I need to provide to C101 (from the engine side) is the pin H 121 white wire from the coil white wire on the pink/white wire connector. Any further info im missing will help with my journey through this extensive electrical investigation. This C101 must apply to all the LS swaps going on so looking to gain any helpful info anyone has. I can provide as much info as I have at this point to make future swaps like mine usefull to LS swap guy's also. Trying to wrap this up in a few weeks
 

0966Sy

Code what?
Re: BS3 Install on stock Typhoon

You're exactly right. 121 is the only one you need to snake through back to the engine bay.

http://www.syty.net/forums/showthread.php?t=90774

You can also get your switched power to power the box on that same plug if you hadn't already done that.

Thanks Justin! Ive read a post regarding the tach signal from Eviltwin's swap thread and found that he only showed using the 121 pin H also. Realy my only concern was pin F 434 from the ECM to the trans neutral safety switch, I didnt know how that circuit would react.

I'll get some pictures up of the location for the fuel pump relay using the Racetronix harness. I almost forgot how easy it was to get to the FP harness connector on a Ty. Almost thought I was going to have to drop the tank. This install keeps getting more simple as I move forward. Im almost ready to set the center console back down now that I have the C101 figured out. My next few challenges are the TCC operation for the 700r and making the A/C Harness. I have the A/C harness on paper and im not that worried about it untill after I get the Ty running first.

Now that I have finished cleaning up the mess of aftermarket alarm wiring under the dash and have completed the Fuel pump wiring. I'll like to discuss the TCC circuit control without the factory ECM. Basically have a couple of options I need to look further into.

Running a switch for on/off" control that will still dissengage the TCC when the brake is applied. Like what we do by jumping the ALDL pins with a switch to lock the TC sooner/later

or

Running a pressure switch to control the TCC, TCI offer's a wiring harness kit. Although im not exactly sure if this is waisting my money and time.

The more and more I read through the 120 page BS3 manual, I I cant wait to get this thing going and see what I can get out of this stock build.
 
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RealFastV6

@jb_and_his_coffee
Re: BS3 Install on stock Typhoon

I did nothing with the N/S to ECU @ C101. No need to make that connection - it's still functional since the starter is directly interrupted by the switch.

You are correct about the TCC circuit (ground) brake pedal interrupt operation. If you can get the BS3 to read the DRAC to ECU signal though and provide the 12v signal for lockup that'd be best IMO. Don't know much about the BS3 so not going to be much help there.

Which brings up a thought... did you leave the TCC circuit in your engine harness?
 
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0966Sy

Code what?
Re: BS3 Install on stock Typhoon

I did nothing with the N/S to ECU @ C101. No need to make that connection - it's still functional since the starter is directly interrupted by the switch.

You are correct about the TCC circuit (ground) brake pedal interrupt operation. If you can get the BS3 to read the DRAC to ECU signal though and provide the 12v signal for lockup that'd be best IMO. Don't know much about the BS3 so not going to be much help there.

Which brings up a thought... did you leave the TCC circuit in your engine harness?

The challenge I have which I believe will not be to difficult to figure out is getting the brake pedal to cancel the TCC engagement. The engagement will have to be turned on by switch as the BS3 without the trans controller does not control TCC lockup. Yes, I did leave the two wires at the bulkhead connector for the TCC circuit. Basically need to figure out how im going to cancel the TCC with the brake pedal so I dont have to constantly turn a switch on/off. Im not sure how the pressure switch would work in our boosted application.
 

0966Sy

Code what?
Re: BS3 Install on stock Typhoon

As promised last year I have the pictures and details following the fuel pump wiring. Very simple, the BS3 has a primary and secondary fuel pump control. Im only running one pump so im using the primary (ground controlled) to activate the racetronix fuel pump relay. The racetronix relay came with a ground eye connector(black) ment to go to the frame, I cut off the ground eye and soldered a 16guage black wire runnung up the inside framerail in the split loom with the 12guage power wire. When I got to the torision bar crossmember or so the black ground wire to the relay goes up into the cab to run under the carpet to the BS3 connector at the ECU. I used a extra female ABS power connector that I had cut off the syclone battery cable, it plugs right into the male that the BS3 comes with for the primary fuel pump circuit. So far I have not had to cut/splice a single wire from the BS3 harness.

Im working on the TCC circuit right now and should have it done this weekend, should be up and running in a couple weeks

Relay location
100_1896_zpsa70ffd5f.jpg

Ground relay trigger wire into cab to ECU
100_1895_zps4e5839c8.jpg

Out of carpet from driver side
100_1897_zps353f0691.jpg

Under console to connector
100_1898_zps0ca52bb7.jpg

Power at back of alternator
100_1894_zps52f7cb56.jpg


Im working on the TCC circuit right now and should have it done this weekend
 
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0966Sy

Code what?
Re: BS3 Install on stock Typhoon

Trying to get this thing to fire, as of now im trying to figure out why the BS3 is not getting a RPM signal in the dash display while cranking. The white "points" wire has been left disconected as im not running a MSD box. (Per instructions in BS3) I have the large HEI connector going into the small HEI connector using an adapter harness from eficonnection. The other plug from the module is out to the coil as normal. Thought this was all I would need for spark timing but somthing is obviously wrong here.
 

0966Sy

Code what?
Re: BS3 Install on stock Typhoon

Well it appears that the HEI plug from the BS3 comes pin'd for the HEI internal coil distributor. I found the pin location for the external coil distributor so I'll change the pins out later and see if that does it.

EDIT: While looking into this I found that the large HEI to small HEI adapter harness I ordered from eficonnection was pin'd backwards at the large HEI connector. I orderd two and just happned to install the incorrectly pin'd harness. Im hoping this did not destroy somthing in the ECU. Im still not getting a RPM signal in the "dash" for the BS3 while cranking. My timing is 0* with the connector unplugged and the firing order is right in the file and in the plug wires. Getting spark and have fuel pressure, but no traces of fuel on my brand new Ur5 plugs.

Somthing is not right, my 12v switch power to the ECU was dropping all it's voltage while cranking so I moved it to the old ECM fuse port and stay steady 11.0 while cranking although BS3 demands to have 12v on this circuit while cranking. Not sure where else to get it from that is ign switched power that doesnt drop below 12v. Picked up a battery charger and keeping the battery up with all this cranking. No problems linking to ECU. Going to contact BS3 tomorow to see if they can help
 
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e95 Ty

New member
Re: BS3 Install on stock Typhoon

Wish I could help you more but, I have a crank trigger ignition and am running thru my MSD with the BS3. John at Bs3 should be able to help. (If you can get him to answer the phone):roll:
 

0966Sy

Code what?
Re: BS3 Install on stock Typhoon

Well It fired right up today, after some tech support from Pete@PT&E the dealer setting's had not been configured in the ECU for GM HEI. I double checked the base timing and set my base fuel pressure. Going to do a little more studying on a few files I have and get some drive time/tuning this weekend. Super excited! Thanks to everyone for the help! I have much more info on the install if anyone has any questions, also going to be adding the A/C harness after spring.
 

Throws

Active member
Re: BS3 Install on stock Typhoon

100_1841.jpg


What size battery is that? Is it stock, or is the perspective skewed?

-P
 
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