Hussein's 1998 V70 Xr : The Force Awakens


Recommended Posts

  • Replies 3.4k
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

This is nuts, I blame the site update for the failure.

I'll take some over the weekend this morning:

Thanks, Robbie. I'm going to run 10mm ID line F/R, using AN -08 fittings from the pumps through the filter, with ORB-06 fittings for the returns.I was looking at fuel filters - I was going to use

Posted Images

Adjusted the RPM scaling again - I was still off on the peak trq/hp settings. Moved the timing numbers a little. lowered the WOT sliders, too. it was too rich @ WOT

EnemCamrev003Timing.png

Pull in 3rd/4th

Still maxxing out the MAF by 5600, even with the true 3" housing. Maybe I need to go even larger

Picture1-11.png

hitting 74% duty cycle around 6.6K. I'll have to do a 7500 pull & see what the duty rises to. What is optimal range, anyway? EDIT: did a quick search, and it seems 85% is considered the max you would want to see @ peak, so I should be OK.

Hey Hussain,

As others have mentioned, get timing figured out.

As I look at your timing map, it looks extremely conservative (in my opinion), and as I evaluate the data and cross reference with your timing table, something seems off.

If you look at the timing log above and you refer to row 13 on to about 25, you can see that your timing drops, even lower than that of your timing table in TT screen, suggesting your still getting timing pull, even with your already conservative timing numbers.

If you look at row 12 under your load column your log reads 166, to factor as a percentage, is ~72% load at 5060rpm, and as you look at your timing table, you can see that if you look at the the four cells hi-lighted by looking at 68 & 75% rows and 4800 and 5200rpm columns, your timing values are actually 11 and 12, suggesting that your log of 11.5 is actually following your map with no timing pull.

Do the same for row 13 on your log and...

Load: ~85%

Ignition: 6 deg @ 5160rpm

Ignition Table (between rows 82 and 88%, and 5200rpm column): 10 and 9 deg (respectively)

You are getting timing pull and there is nothing that suggests your IATs are horrible, but they are probably ~25F above ambient (assumption on my part), which doesn't suggest that charge cooling needs to be addressed, and you can clearly see that your IATs drop as rpm climbs, telling me your not hitting a ceiling for cooling...

I don't have an answer, but I can tell you that under the heaviest load or peak torque on my setup I wont drop my timing below 12deg. If it drops to 8 I know something is wrong and I will let off and lower my boost.

Sometimes its worth a shot, create a different ignition map that is more aggressive and run a lower boost ~15psi, and monitor via your logs, if you still notice ignition pull, then time to address other issues... sometimes its not about how much boost you're running, its about how it all comes together and works out... What fuel are you running??? Octane? do you fill up at the same place constantly or does it vary?

For me 90% of the time I fill up at one gas station (94 octane with up to 10% methanol), car loves this stuff, sometimes I need to fill up and cant get to one of the gas stations that have this, and will fill up with an alternative, still premium but only 91 and straight gasoline, I know that during the day I will definitely have to run a lower boost pressure, at night its not that bad, but again, I'm much happier with the 94 in the car, its not just in my head I feel it in the car and can see it on my live scanner (doesn't' log), but I will feel timing pull and effectively see the timing drop to 8deg.

If memory serves me correct, someone else had mentioned high octane fuel to see if that would remedy your ignition woes, awhile ago. I know its hard to justify at times, but trust me, once you feel your car pull with no timing being pulled, even if you're at a lower boost then you'll never look back...

Ideally lowering your boost should resolve your timing pull, it may feel better up top, but that mid range (4800 - 5200) is suffering with your higher boost...

I'm sure you'll figure it out...

  • Upvote 1
Link to post
Share on other sites

Ideally lowering your boost should resolve your timing pull, it may feel better up top, but that mid range (4800 - 5200) is suffering with your higher boost...

I'm sure you'll figure it out...

Hey, many thanks for the detailed response! I just finished a much more aggressive timing map, closer to one I ran 2 years ago. I'll try it at around 15psi & see how that goes!

On that day, the ambient temps where in the high 90's, doesn't help. I only get 93 octane from Sunoco. I did try some CAM2 100 octane a while ago, didn't see any difference - but perhaps I'll try again.

It's very hot again today, so I don't expect too much. My short runner intake should be finished in the next week or so, so hopefully I'll have that back on the car before Sept.

Link to post
Share on other sites

Revised Timing

Picture3-9.png

Drove around, lowered boost to 16psi. Felt OK in normal/medium load, so I did a couple of pulls

Picture2-11.png

rev0053rd4th5th.png

Picture1-14.png

rev0054th.png

What's crazy is that the AFR's are insanely rich, with all that extra timing? I've lowered the WOT sliders significantly based on those two pulls, so I'll see how it is tomorrow.

Link to post
Share on other sites

Thanks Joseph, I'll check it out.

This arrived today. I had thought the runners were more equal in length, oh well.

Install Thread

IMG_9132.jpg

IMG_9133.jpg

I'll have to redo the inlet, turbo oil & coolant lines, and the DP (again)

Was gonna do the intake first, but that's not ready yet.

Link to post
Share on other sites

Is this the LGspeed one or RSI?

Could you get a close up of the collector(inside and back) when you get a chance?

RSI version won't fit AWD.

What do you mean by 'back', the outside?

IMG_9132a.jpg

Link to post
Share on other sites

RSI version won't fit AWD.

What do you mean by 'back', the outside?

IMG_9132a.jpg

Gotcha, the other side of what you just posted. I just like to see how good the welds are.

Do they recommend to install some kind of support for the turbo?

Link to post
Share on other sites

Gotcha, the other side of what you just posted. I just like to see how good the welds are.

Do they recommend to install some kind of support for the turbo?

No support, and flex in DP. My flex is immediately post-DP - I put a V-band on the end of the DP, so I'm gonna assume it'll be OK

XRDPYPipe.jpg

Link to post
Share on other sites

Another pull, WOT sliders lowered again

Picture5-3.png

PSIa is recorded via the LMA-3 - more accurately scaled than the recorded boost via the Apexi MAP - just subtract 14.5.

Picture6-1.png

still very rich AFR's at WOT.

Map trace in typical 3rd gear pull - never hits 100% load

Picture4-6.png

Link to post
Share on other sites

Gotcha, the other side of what you just posted. I just like to see how good the welds are.

New pics - looks good to me

IMG_9135.jpg

IMG_9134.jpg

hard top get the inside

IMG_9136.jpg

My intake is almost ready now...

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.