Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[fuse]

Why are thy so fucked up On crome and ectune thy are around 21 deg at idle but on the stock motor you set timing to 12 + or - 2. Why wouldn’t the idle ignition be around 12? And why do thy have a massive dip around 3000 cruise?

Contemplating on what ignition maps to use on a b7/y8 mini me as a good starting point.

[jagojon3]

Use the y8 maps to start from

[Joseph Davis]

Why are thy so fucked up On crome and ectune thy are around 21 deg at idle but on the stock motor you set timing to 12 + or - 2. Why wouldn’t the idle ignition be around 12?

The marks are at 10,12,14 degrees with 12 being target.  If they are set to 21 at idle it's because you are using some map generated by a retarded pole smoker aka 99% of the kids who tune their own cars and haven't a clue.  This is why you ALWAYS throw away the other dipshit's tune and start from your own basemap.

I usually lock mine at 12 to set timing and then have them idle at 16, the engine is a little more tractable that way on some cars.

[DmC]

Why are thy so fucked up On crome and ectune thy are around 21 deg at idle but on the stock motor you set timing to 12 + or - 2. Why wouldn’t the idle ignition be around 12?

The marks are at 10,12,14 degrees with 12 being target.  If they are set to 21 at idle it's because you are using some map generated by a retarded pole smoker aka 99% of the kids who tune their own cars and haven't a clue.  This is why you ALWAYS throw away the other dipshit's tune and start from your own basemap.

I usually lock mine at 12 to set timing and then have them idle at 16, the engine is a little more tractable that way on some cars.

  mine idles at 20

[92CXyD]

Do you still use the same z6 map if you are using the z6 block/crankpulley and a y8 head?

I hope so, I have my idle at 16 on my map ( with the cam retarded 2.5deg b/c of y8 head/cam and block decked 0.020").

Seems to run ok if can keep the rods bearing in rod #4 from failing  ;D

[DmC]

Do you still use the same z6 map if you are using the z6 block/crankpulley and a y8 head?

I hope so, I have my idle at 16 on my map ( with the cam retarded 2.5deg b/c of y8 head/cam and block decked 0.020").

Seems to run ok if can keep the rods bearing in rod #4 from failing  ;D

I'm not 100% on this but p2p maps are so screwwed up with obd2ness that you need to throw advance at them anyway when you paste them into 0bd1 software. I don't think using a z6 map would hurt anything if your fixing the cam issue with a cam gear.  The Offical answer is that your supposed to use the maps from the head your using though, No matter what the block is.

[92CXyD]

if that is the case where can I get a p2p map or a modified p28 map for a y8 head then. ;D

[DmC]

Whats your email?

[Joseph Davis]

Do you still use the same z6 map if you are using the z6 block/crankpulley and a y8 head?

I hope so, I have my idle at 16 on my map ( with the cam retarded 2.5deg b/c of y8 head/cam and block decked 0.020").

Seems to run ok if can keep the rods bearing in rod #4 from failing  ;D

You use a Z6-like map, and then do something else for timing under boost.  The Y8 likes less timing.

Rod #4 is at the far end of the oil system, if you have problems with it failing you have a leak bleeding off pressure somewhere inbetween, or much more likely your oil pump is failing.  

if that is the case where can I get a p2p map or a modified p28 map for a y8 head then. ;D

P2P map is a minimum timing map, there is a 2D map for maximum advance to feed the engine *if* the KS isn't raising hell.  Also, the numbers in the P2P are thrown "off" with how the distributor drive dog on the end of the cam was incorrectly cut - the software engineers fudged the timing maps to make the system work.  That's where you get 21 degrees at idle when the engine uses 12, but since we know how to use timing lights and don't mind a distributor twisted all the way one direction, it's simpler and a lot less confusing to have 12 = 12 instead of 21 = 12.  

Those three sentences encompass the entirety of the Y8 timing confusion. I deleted 8 or 13 pages of idiots not being able to understand that off of pgmfi.org and creating a bunch of waaaaah waaaaaah waaaaaaaah drama over the situation because they are stupid.  They still cry about it on D-series.org, and I imagine TD16 and other such sites.  Waaaaaah waaaaaaaah waaaaaaaaaah I don't know how to use a timing light.  Waaaah waaaaaah waaaaaaaah look at me I'm dumb.

[92CXyD]

I was thinking the rod #4 was the issue b/c I went through a bearing in in two days.

I'll check the oil pump again, already had it shimmed and port per Oldone article.

I was running on the p28 map but the engine was not feeling very strong until I turn on the S/C.

But even with s/c on the engine was not as strong as the stock z6 and S/C combo.

I figured it was the lower compression and maybe a little too conservative on the ing/boost set @ 1.5 deg/lbs. and turbo eff. set at 150%.

I'm thinking once I get the engine back together I would run 1.0 deg/lb and 120% turbo eff. then mod the tables by hand from there.

[Joseph Davis]

If the pump has seen any debris it'll fuck you on the deal.  If the journal has been knocked on, even if it looks good, it'll fuck you on the deal.

And blowers are funky mojo.  They are very particular about ignition timing, and 2-3 degrees is the difference between your powerband looking like underwhelmingly ragged spikey ass versus robust + smooth much like my cock into your mom's hot pink snatch. 

Just saying.

[92CXyD]

I'll check for debris in the pump and I already micro polish the journal on #4 and it looks good.

I'm using used TT rods so may just get another set of rods to be sure.

As for your shaft I heard, unlike your bald cranium, your helmet has hair.
So that can that too smooth and that is the real reason you have to wear a condom.
Sasquatch penis  ;D, all the hair but non of the size.

[Joseph Davis]

I'll check for debris in the pump and I already micro polish the journal on #4 and it looks good.

I'm using used TT rods so may just get another set of rods to be sure.

Not debris in the pump - check for the pump's clearances, and any scoring, from debris.

Did the micropolish include making sure the journal was still perfectly round?  What is the bearing clearance?

Never had a problem with TT rods.

[92CXyD]

On the set of bearings have on #4 the clearance is 0.003" with the plasti-gauge  and yeah I check the roundness of the journal at was still in spec. but I do not have numbers in front of me.

[ApexSilver06MR]

i would post my maps but i cannot attach shit here..

[Joseph Davis]

On the set of bearings have on #4 the clearance is 0.003" with the plasti-gauge  and yeah I check the roundness of the journal at was still in spec. but I do not have numbers in front of me.

"Ideal" is 0.0015" and race engines run 0.0025".  0.003" is too much, especially at the tail end of the oilling system where it bleeds off all of the remaining pressure.

Get another crank, or have that one turned. 

[92CXyD]

I have 3 spare cranks. ;D

[fuse]

The marks are at 10,12,14 degrees with 12 being target.  If they are set to 21 at idle it's because you are using some map generated by a retarded pole smoker aka 99% of the kids who tune their own cars and haven't a clue.  This is why you ALWAYS throw away the other dipshit's tune and start from your own basemap.

I usually lock mine at 12 to set timing and then have them idle at 16, the engine is a little more tractable that way on some cars.

Nice that’s what I wanted to hear. I am running a b7 with a y8 head (z6 cam sprocket to try and correct cam timing) I used y8 fuel and a z6 ignition map. I used a dial back timing light used the white mark locked timing at 16 in crome and dialed back to 16 lock the dist on 16. Let out a little timing and set fuel up runs ok just wanted to know what other people thought about the y8 ignition maps.

[lilpooh21186]

i hate that stupid y8 problem i refuese to tune that motor anywere other than the dyno. they love to detonate i have 1 that did make good power though.

[DmC]

i hate that stupid y8 problem i refuese to tune that motor anywere other than the dyno. they love to detonate i have 1 that did make good power though.

Man they really don't make the power that a z6 head does. It's amazing how differant they are in that way. You tune it with the y8 head and the car does ok but takes forever. you tune the same car same setup except for the head swap and it goes smooth and easy and pulls like beast.

[Joseph Davis]

i hate that stupid y8 problem i refuese to tune that motor anywere other than the dyno. they love to detonate i have 1 that did make good power though.

Man they really don't make the power that a z6 head does. It's amazing how differant they are in that way.

If you looked at the intake ports it's not amazing in the least.

Looking back I'm fucking surprised I made the power I did on the D16Y5 Type-R... I knew quench had a lot to do with a NA setup, but damn.  I really want to weld up a Z6 chamber and make it Y8-ish, then go with the Mike Belben recipe.

[DmC]

That makes sense then. when Ive had the two side by side I never took the time to compare.     thats emberising.  Man I really wanted the y7 R in Tonys car but I think Bone ended up with it. That guy can do work so it may end up upgraded sometime in the future.

[Joseph Davis]

Is Tony running the D16Y5 Type-R or what?  Don;t go to bed and make me call Sadie and talk to he about her moped ticket... she'd probably point out my bald spot and that leads to tears, Dennis.  Have you ever seen a grown man cry aside from Bone?

[DmC]

No by some fucking who knows what Dave gave it to Bone after I helped cayy it into Tonys basement mind you  . So Chuck will drop it in his new hf. 

[Joseph Davis]

No wonder he's talked so much shit to me recently - he's gotten all he ever wanted from me.

[onlyflash944]

I really want to weld up a Z6 chamber and make it Y8-ish

how much would labor be for something like that?

[Joseph Davis]

I really want to weld up a Z6 chamber and make it Y8-ish

how much would labor be for something like that?

A lot, because it's a NA modification and the sort of faggot who's serious about making a lot of NA power on a SOHC needs to be assreamed.  FYI quench = bad for boost.

[onlyflash944]

I really want to weld up a Z6 chamber and make it Y8-ish

how much would labor be for something like that?

A lot, because it's a NA modification and the sort of faggot who's serious about making a lot of NA power on a SOHC needs to be assreamed.  FYI quench = bad for boost.

i would imagine it would be the machining of the chambers that would run an arm and leg. 

answer your pms, btw

[shocogs09]

i will have my aem maps up as soon as i can get to a laptop, and after im back from vacation in a few weeks.