When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Now that the engine is out, and the weather is amazing. Cool and rainy I took some measurements to see what the ring gap was set to by the engine builders and try to figure out what is going on with piston #3 and why its so low on compression. Results:
Number 3 is not liking life, which just happens to be the hole that ate the spark plug and is down almost 100 psi in compression. When I put in the top ring I noticed that the ring does not set flush in the hole and right where the two ends meet up the right side bows in a little and you can see light from underneath. I will be sending in the block to get inspected to make sure the holes are good go, in the mean time I have new rings on the way and @bealljk is letting me use his ring gaping tool.
Also I have no idea where this "Engine Builder" came up with his gap numbers. Instead of using Weisco's .0050 and .0055 ratios, they were using ~.00529 and ~.00687 to me seems a little loose.
Trying to revive the car but she's fighting me all the way.
Current status of the car.
Stock Engine with a 1st Gen 6266 BP mid mount kit.
Being tuned by AdminTuning on UpRev.
Plan is to keep it on stock block until I can rebuild the other block again.
I'm currently waiting on UpRev to see if they will warranty the MAF i just bought in late Nov. It died on me last Friday after putting the car away.
If all goes well hopefully the car will see boost in two weeks.
Buttoned up the car and took it out for a spin to get a log up Admin Tuning. Car ran fine at idle and while accelerating as long as I stayed out of boost. As soon as I get into boost I would start to get misfire on #2 cylinder. Got the car home and swapped the #2 and #1 coils to see if the problem followed. To my excitement it did. Replaced coil, now car is running good even while getting into boost.
Took the car back out to get another for Admin, this time I noticed the boost was sporadic and I wasn't getting my favorite Wooooooooooshing noise. Brought the car back to look for a boost leak. Found that fixed it and now the car is running amazing again.
Tomorrow I will be taking back out to get Admin the log he asked for last week :-(
This is where the boost leak was. Since I had to raise the FMIC up about 2" the piping doesn't quite align all the way up anymore.
OMG the garage is complete mess...
Once the car is running fully I'll put the bumper back on, until then it stays off to check things over.
Quick Video me and the oldest made. We had to do a log for Admin and record the widebands. The top number is Pre Turbo and bottom number is Post Turbo.
This is 3rd gear from roughly 3k to 5.5K at maybe 1/4 throttle. I was trying to stay around 5psi. That was way harder than I expected, the beeping was the boost controller telling me I hit/exceeded my 5psi limit.
You can hear the wastegate starting to flutter, I think I have a 7psi spring in the gate.
Admin did an amazing job yet again. Car is tuned and running amazing.
The only thing I'm not fond of is the boost creep I'm seeing. Instead of hitting and staying at 5psi its creeping up as the RPM's climb. I 1000% believe its due to the single 38mm waste gate on the car. I'm not sure what size to upgrade to but once I do that I'm going to go from an open dump to a recirc dump to quite it down a bit.
Admin did an amazing job yet again. Car is tuned and running amazing.
The only thing I'm not fond of is the boost creep I'm seeing. Instead of hitting and staying at 5psi its creeping up as the RPM's climb. I 1000% believe its due to the single 38mm waste gate on the car. I'm not sure what size to upgrade to but once I do that I'm going to go from an open dump to a recirc dump to quite it down a bit.
You should be able to control the boost creep with the boost controlle right? or is it already maxed out on gain control.
Car is tuned and running amazing. Went to a local dyno on Tuesday to get some numbers.
We were having problems the entire time we were there but, the guy was working with us. What should of been 3 pulls and done ended up taking like an hour - hour and a half due to all the problems.
No pictures of the graphs sorry.
When we were on the low boost setting we was seeing 6-6.5psi at peak. Where I can see upwards of 8psi on the street.
On high boost we were only seeing 8-9 psi where on the street i see 11-12.
We think that the car was just spinning to bad to put good load on the car in both 4th and 5th gear. When I talked with Moncef he believes the dyno isn't big enough to provide sufficient resistance regardless if I was spinning or not.
Any way after like 8 low boost runs with lower air pressure people setting in the trunk for extra weight the most we ever saw was 310whp on low boost.
Our highest number on High boost was 410whp.
I'm trying to get on another dyno right down the road from me next week to see if I can get more accurate numbers.
@GreyZ soooo I believe what is happening is my Gain setting is kicking in. In order to keep the torque low I believe the boost is kept lower in the lower RPMS and allowing the Gain to take over to increase the power as the RPMs increase while keeping the torque at a safe number. When I turn off the gain low boost numbers will stay between 6psi and 7psi the from 4K to 7K.
I believe both of these runs are low boost 4th gear pulls.
Car is tuned and running amazing. Went to a local dyno on Tuesday to get some numbers.
We were having problems the entire time we were there but, the guy was working with us. What should of been 3 pulls and done ended up taking like an hour - hour and a half due to all the problems.
No pictures of the graphs sorry.
When we were on the low boost setting we was seeing 6-6.5psi at peak. Where I can see upwards of 8psi on the street.
On high boost we were only seeing 8-9 psi where on the street i see 11-12.
We think that the car was just spinning to bad to put good load on the car in both 4th and 5th gear. When I talked with Moncef he believes the dyno isn't big enough to provide sufficient resistance regardless if I was spinning or not.
Any way after like 8 low boost runs with lower air pressure people setting in the trunk for extra weight the most we ever saw was 310whp on low boost.
Our highest number on High boost was 410whp.
I'm trying to get on another dyno right down the road from me next week to see if I can get more accurate numbers.
@GreyZ soooo I believe what is happening is my Gain setting is kicking in. In order to keep the torque low I believe the boost is kept lower in the lower RPMS and allowing the Gain to take over to increase the power as the RPMs increase while keeping the torque at a safe number. When I turn off the gain low boost numbers will stay between 6psi and 7psi the from 4K to 7K.
wow those pulls were quick. Most certainly incorrect dyno settings or just not enough mass. Almost looked like a 2nd or 3rd gear pull.
I highly doubt it was spinning. Spinning makes some pretty wild noises and will chew up a set of tires in only a few pulls.
Putting extra weight in the trunk is a bandaid to a bad strap job and it irks me any time I see it. Especially at <800-1000 hp levels.
When we aired down the tires, tightened the straps, and put weight in the back we got the cleanest pull.. Still looked like doo doo but, it was cleaner. Thats where we saw the 400 hp run.
Did some testing last weekend to try to fine tune my boost before getting back on the dyno. What i figured out is with 0% Gain and 0% duty cycle my baby 38mm wastegate with its 4psi spring will hold 6-6.5psi from 3K - 6k after that it climbs steadily until i shift at 7K roughly hitting 8.6-9psi. . I went to my high boost map and set my gain to -20% and I can see the boost fall off once it hits 8psi around 4k rpms but once it hits 6K it takes off again. I have a limiter set at 11psi but that doesn't help at all.
This was the low boost pull.
So, I ordered a second wastegate and hopefully will get it installed this week or early next week. Then we'll test and see if that resolves my boost issue and I can have a true low and high boost map that I can rev out past 6K with out fear.
The hits keep on coming....
Friday I went looking for a exhaust shop to install a second wastegate. Found a shop that said they should be able to do it, but it wouldn't be until this week they could get it. Sweet, went back to work you know because I'm a responsible worker.... anyway on the way to work I started to smell fuel and noticed my fuel gauge was falling very very quickly.
Got to work and started looking and notice my fuel send line was pi$$ing fuel. Somehow I split my fuel line. Thankfully I work next to a machine shop and they was able to fab me temp fix.
Over the weekend I was able to get under the car and realized there is no way put both of the wastegates under the car. So, today I took the car back to the Exhaust shop for them to look at swapping out the 38mm for the 44mm and taking it from an open dump to a recirculated dump. All went well and scheduled the appointment for Thursday at 0800.
Welp on the way home, the fuking fuel line popped again just in a different spot. I ran fine until i got about 1 mile from the house and my AFR's started hitting 18+ (I know very very bad) I had no options.
Sooo, new fuel line is on order and hopefully next week i can get the exhaust fabbed up
Side note: Destroyed my left shoulder on sunday so i only have one good arm to do all this work this week :-(
Installed new -8 AN fuel line today. After getting everything together went to prime the pump to look for leaks AND....the fuel pump isn't kicking on. Checked all the fuses and they were good. So I pulled out the pump to see what was up. Everything looks good hmmm, just happend to have a spare fuel basket. I plugged it into the harness to see if that pump worked no problem...WTF.
So, i grabbed some wire and hooked up the 525 to the battery and it spun up. Hmm thats idd...Put it all back together put it in the car turn on the key, no pump. Checked the voltage at the connector and I'm getting my 12V.
Grabbed some wire and ran it from the battery to the pump and it spins up. Held it on there for about 3 seconds. Sweet its working, let me hook up the body harness to tripple check it....Nope no pump with the key...Fck this car..
Go back to hook pump up directly to the battery, spins no problem. Did about 8, 3 second bursts. Each time worked no problem. Hooked up the car harness, still no pump...you have to be kidding me what is going on.
Hooked the battery back up to the pump, this time i did it backwards just to see if something is stuck or something. Spun no problem, hooked it back up normal and had my youngest watch the FPR to see what kind of fuel pressure were getting and to make sure there is no leaks. Everything checked out.
hooked it back to the body harness and it started working. Waited about 5 mins hit the key and the pump kicked on with the key again. So, now i'm gonna leave the back seat out for a few days to make sure everything is g2g.
No idea what was going on. Fuel pump doesn't use the OEM harness from the ipdm it's too much current for the stock harness. Stock harness triggers a relay which has a thicker ground and power wire. I heard the relay engage every time.
Had the new wastgate installed and changed from Open to Recirc. OMG it's so much better when hitting boost!
I had to change some wastegate springs around. The 4psi spring I had in there was like 3 psi. Put in my 7psi spring and its opening up around 6psi.
I've play a TON with the boost controller and have Low boost set at 6psi climbing up to 8psi. High boost is set at 10psi climbing to 12 psi.
I need to get under the car I feel like I have either a slight boost leak or a exhaust leak. I feel like the BOV isn't making the same Woosh it was with the other WG. I think I have an exhaust leak due to passing a car and hearing some odd noises from under the car.
I've also noticed my AFR's are richer than what they were before the wastegate change.
More to come once I can get the car to a lift and actually get under it and check the exhaust and intercooler piping. The quick jack is amazing but not so much when you have a messed up shoulder.
Had the new wastgate installed and changed from Open to Recirc. OMG it's so much better when hitting boost!
I had to change some wastegate springs around. The 4psi spring I had in there was like 3 psi. Put in my 7psi spring and its opening up around 6psi.
I've play a TON with the boost controller and have Low boost set at 6psi climbing up to 8psi. High boost is set at 10psi climbing to 12 psi.
I need to get under the car I feel like I have either a slight boost leak or a exhaust leak. I feel like the BOV isn't making the same Woosh it was with the other WG. I think I have an exhaust leak due to passing a car and hearing some odd noises from under the car.
I've also noticed my AFR's are richer than what they were before the wastegate change.
More to come once I can get the car to a lift and actually get under it and check the exhaust and intercooler piping. The quick jack is amazing but not so much when you have a messed up shoulder.
Nice. All good news. I used to struggle with the header to flange joint. Also I have always felt recirc sounds better
