obd1 vr boost options.. help appreciated

[kushdubber]

Converting my obd1 to obd2, then the exciting turbo build

[PjS860ct]

if you know what you are doing piecing your own kit would be ideal as you get the parts that you want... but if you dont the kinetic turbo kit is for you

goodluck

[kushdubber]

These are my current parts for the build:

Precision billet HP6262 68ar
kinetic manifold
kinetic 3" dp
38mm tial wg
Forge super dv
C2 # 42 software and injectors
4" maf housing
arp head studs
9:1 head spacer

oil feed/return lines
fmi
4 bar fpr

[V-dubbulyuh]

I have a parts list of what I think I will need to get around 300 hp.

Please correct me if i am missing anything major.

T04 turbo - ive seen setups using this, any suggestions would be great.
atp manifold
3" downpipe
38mm tial wg
oil feed/return lines

c2 software (still unsure about this and what injectors to use)
other little bits and pcs to hook everything up.

1. Caution on using that, be sure you have a compatible turbine housing (as I did not see mention of using an SRI).

2. Try to get your hands on a set of the older Bosch Bluetops (36). FYI there is another Bosch Bluetop that is not 36 lb so be careful there. I have not used them personally but I know people have had luck with the Lucas injectors also.

And if i decide to use a ic, it will obviously need different software and injectors correct?
I will get a bov if i go this route, any suggestions?

Thanks

The use of an IC will not alter your injector or software needs. You will be fine with the chip you selected above. As far as software options for OBD 1 you are basically limited to C2 and Standalone (I don't think United is supporting OBD1 Vr6 at the moment).

[SVTDanny]

Do yourself a favor and swap your motor to OBD2 before throwing a turbo kit on there. You will save yourself a ton of headaches down the road.

C2 will take your money for the OBD1 software all day long, but you'll be lucky to get a response if you're having any problems (And you will have problems).

[kushdubber]

sri meaning a short ram intake? or short runner? (short runner in the future)

I have taken note of the bosch bluetops, will look into that.

Thanks

Do yourself a favor and swap your motor to OBD2 before throwing a turbo kit on there. You will save yourself a ton of headaches down the road.

C2 will take your money for the OBD1 software all day long, but you'll be lucky to get a response if you're having any problems (And you will have problems).

unfortunatly my motor was swapped this summer so i would rather not deal with that again. what types of problems compared to obd2? and why? if i have a shop for tuning, would they be able to fix those problems?

Thanks

[SVTDanny]

No. OBD1 is archaic and nobody wants to mess with it. From what I've seen, what seems to have happened is that Jeff wrote the OBD1 tunes when he was with C2, then he left, and doesn't mess with OBD1 anymore. C2 is stuck with the tunes, but nobody that knows how to do anything with them to further tweak them. Essentially, C2 is still selling a flawed product that they are either unable or unwilling to support.

Jeff told me himself that he recommends 100% everyone swap to OBD2 before doing anything, because the OBD1 ECU is extremely limited and there will always be quirks in the tune.

You don't have to swap the whole motor, just the engine bay harness, engine harness, MAF, O2 sensors, upper intake, throttle body, and ECU. Nothing that couldn't be accomplished in a Saturday afternoon.

An option for OBD1 is to use the Ostrich emulator stuff to tune your own car, but unless you are well versed in dissecting maps within a BIN file and are able to figure out exactly what does what, you won't be getting anywhere. It's far easier/cheaper just to go to OBD2.

[V-dubbulyuh]

You don't have to swap the whole motor, just the engine bay harness, engine harness, MAF, O2 sensors, upper intake, throttle body, and ECU. Nothing that couldn't be accomplished in a Saturday afternoon.

You should have provided links to the several swap/conversion threads or you can bet that this will as usual become yet another "How to: OBD1 to OBD2" with the typical single vs dual row, yada-yada BS thread.

I'm too lazy right now to search and post them up... but as many times as that topic has been addressed it should not be hard to find.

[kushdubber]

Thanks guys!

Ok so before I start this project I am going to do this conversion. I have been reading and it will be a lot easier to tune with the c2 software. Problems are the last thing I want.

So, I am going to need the following (correct me if im wrong)
obd2:
ECU
Intake mani
harness (engine bay/engine)
crank shaft sensor?????
o2 sensors- how many?
fpr?
MAF - just a stock obd2?
throttle body


PLEASE let me know what im missing, and maybe what i dont need if I will be using C2 software.

Anyone that reads this with some knowledge, your help is appreciated as i would like to get this rolling asap!!

[kushdubber]

You should have provided links to the several swap/conversion threads or you can bet that this will as usual become yet another "How to: OBD1 to OBD2" with the typical single vs dual row, yada-yada BS thread.

I'm too lazy right now to search and post them up... but as many times as that topic has been addressed it should not be hard to find.

id rather this be a turbo build IF this thread continues. Once i have my parts list for the obd conversion I can figure that out on my own

[SVTDanny]

obd2:
ECU
Intake mani - upper only
harness (engine bay/engine)
camshaft position sensor, I believe you only need this if you swap to a single chain though
o2 sensors - front & rear, I believe the C2 tunes delete the rear one though, so just front
fpr - 3 BAR
MAF - just a stock obd2 - yes, if your OBD1 sensor is a 4 pin then you can use it
throttle body

Fixed/edited.

[kushdubber]

camshaft position sensor, I believe you only need this if you swap to a single chain though

Do I need to swap to single chain or can I leave as is?

Less work the better lol

[SVTDanny]

You can leave it, although if you're doing the chains anyway, might as well just switch to the single upper.

[V-dubbulyuh]

You should have provided links to the several swap/conversion threads or you can bet that this will as usual become yet another "How to: OBD1 to OBD2" with the typical single vs dual row, yada-yada BS thread.

Do I need to swap to single chain or can I leave as is?

Less work the better lol

You can't say I didn't call it out.

Leave it dual row, that is fine.

[kushdubber]

You can't say I didn't call it out.

Leave it dual row, that is fine.

hahahaha, awesome.

I am going to leave it.

You can leave it, although if you're doing the chains anyway, might as well just switch to the single upper.

Thanks dj for your help. I am going to start looking for these pcs asap

[kushdubber]

im gonna plan on running a t04 60-1, what size hg spacer should i get?

whats the difference between 8:5:1 and 9:1?

[kushdubber]

im gonna plan on running a t04 60-1, what size hg spacer should i get?

[PjS860ct]

go with 9:1 spacer as its the best of both worlds...

someone once said that run 8.5:1cr if you want to get the record of most hp out of 87 octane

Ive run 25+psi (actually hitting my boost cut at 27psi a couple of times)on 9:1cr on 93oct with water/meth with my old setup using Precision's PT61 turbo with a stock vr with the 9:1 spacer...

[kushdubber]

go with 9:1 spacer as its the best of both worlds...

someone once said that run 8.5:1cr if you want to get the record of most hp out of 87 octane

Ive run 25+psi (actually hitting my boost cut at 27psi a couple of times)on 9:1cr on 93oct with water/meth with my old setup using Precision's PT61 turbo with a stock vr with the 9:1 spacer...

lol

thanks im gonna order one right now

[kushdubber]

I am about to order my parts. But first can someone fill me in on the battle between bov's & dv's?

I have decided to go with the dv.

Thanks

[cant get a password]

I went a differnt route I picked up a used megasquirt and harness for $250 on my local craigslist and took a bad obd1 ecu and took the connector off of the board and made my own plug and play harness.

http://forums.vwvortex.com/showthrea...r6-distributor

[kushdubber]

I went a differnt route I picked up a used megasquirt and harness for $250 on my local craigslist and took a bad obd1 ecu and took the connector off of the board and made my own plug and play harness.

http://forums.vwvortex.com/showthrea...r6-distributor

thats a nice project dude glad it worked out!! However id never be able to do that lol

[kushdubber]

Ordered my parts from cts.

I just want to say thanks to Clay, great guy!!

[kushdubber]

I have 2 questions.

Why does everyone run bovs? I have been told, and i have read, that a dv is much better for these set ups. Is it the software? If so, what other software do they run, aside from c2?

Also, what is entailed in moving my battery to the trunk? Extended power/ground wires to a battery box in the back?

[SVTDanny]

I run a BOV just because I didn't have time to mess with welding a recirc fitting onto the turbo inlet piping. You really should run a DV (Just like I need to) with a MAF based system like ours. When the BOV vents the air, the MAF has already counted that air, and so it just dumps fuel everytime you let off in boost. If you go to a different management and run speed density or some other option that isn't MAF based, you can vent to atmosphere all you want.

Run a 0 gauge power cable to the back of the car. Ground the battery to the floor pan, and ground everything up front into the frame rail, or to another central ground.

[kushdubber]

Awesome thanks

Will the dv be moutned to my ic piping? and recirculated to the maf intake pipe? ( and mounted after maf sensor?)

[22beast]

Don't mean to intrude on your thread but you seem to be getting some good responses from people who know what they are talking about.

Question:

what are the limitations for a stock 12v vr6 head, say running a 263 cam. i have a fully built short block on the way...

I plan on running at least a gt30r

[kushdubber]

Can someone please help me identify the two following parts? I have looked through my bentley, but I might be looking at something wrong.



&



Thanks!

[SVTDanny]

1. Idle stabilizer valve

2. Auxiliary water pump

[kushdubber]

Do I have to route the isv tube to my intake that mounts to the turbo?
Also, the pvc pipe that runs off the valve cover goes into my intake as well correct?

[SVTDanny]

One side of the ISV goes to the intake, the other side goes into your charge piping. The ISV won't hold boost, so both sides need to be post-compressor.

Yes , PCV goes to the intake pre-compressor.

[kushdubber]

One side of the ISV goes to the intake, the other side goes into your charge piping. The ISV won't hold boost, so both sides need to be post-compressor.

Yes , PCV goes to the intake pre-compressor.

Thanks

[kushdubber]

Can I delete the isv? Its looking like the obd2 harness does not have a plug for it and I dont know how I would add one in there. I have seen people delete this part.


Thanks for any help

[kushdubber]

did that ^^


Another q, is there a specific way to remove the clips into the fuse box?????

[SVTDanny]

If you're going to OBD2, then no, there's no ISV - its function is replaced by the stepper motor in the throttle body.

Are you talk about the plugs into the back of the fuse block? Just hold down the tabs and wiggle, they can be pretty stuck in there. You can use a small flathead to pry them out.