Compression Test Results, Blowed-Up T-Case, and a Fun-Run (Vids/Pics)

[AdamVR4]

So as some of you may have read, I was concerned about perhaps lifting my heads at some point over the past 2 years.

So today, I went out to the garage with the intent of pulling the cam covers and quickly saw that if I want to pull the front cam cover, I have to remove two IC pipes that I really don’t feel like removing. Sometimes I wish I had a few more couplers, haha.

Instead, I decided to check the spark plugs, do a compression test, start the engine and let it warm up, check the plugs again, and do another compression test.

I only did the front bank because cylinders #1 and #3 have always been the weakest… and frankly, the car is pressure tested and ready to rock -- If I don’t need to mess with it, I’m not going to.

Front plugs. These have maybe 250 miles on them. They’ve seen 29 psi a lot of times at the track and on the street. When I take my car out, it's pretty much all business. I either take friends for rides, romp on it constantly for my own enjoyment, or race other vehicles. They’re gapped @ .020” – haha. Original coils baby, yeah!!

The pictures came out blurry, but the plugs look perfect to me. No slag, no signs of detonation, no signs of burnt coolant.

Cold compression test:
Cyl#1: 130 psi // Cyl#3: 130 psi // Cyl#5: 135 psi (this is lower than it used to be by 7-10 psi)

Hot compression test:
Cyl#1: 150 psi // Cyl#3: 145 psi // Cyl#5: 147 psi

God I love my car. These numbers are identical to what they were over a year ago – which amazes me.

Here are some videos. They’re pretty boring, but for those of you that are just curious…

http://videos.streetfire.net/video/5...075D377A3D.htm

Notice the previous peak boost of 1.2 bar. This is what I was running on pump gas… I’d spin my street tires through 3rd gear (that’s only like 120-130 mph) at that boost level. Yay for FWD.

I have about 10 seconds worth of time invested in the idle / mid throttle tune on the car. The idle is the only thing that’s fubar’ed at all (lean), but it is usually rather stable once the engine is fully warmed up. Hell, I’ve driven the car with the engine ice cold and it drives fine – A little rich, but fine.

http://videos.streetfire.net/video/1...1DA0F3DB8A.htm

Yes, I was revving the engine after going WOT – my idle tune isn’t THAT fucked up.

Check the fuel pressure gauge as boost builds. It appears to drop 1.5 bar (~22 psi) as boost builds to 0.7 bar (~10 psi) in neutral. Oil pressure seemed to sit steady at 2.0 bar or higher the entire time.

Check out what happened to VR4-Case’s transfer case.












He did this on his first trip to SAR as well a his first trip to the track with 13T’s. 117 mph with lots of room left in the tune. He’s going to be getting my old brace which COMPLETELY prevented this from ever happening on my car along with my current turbo set up.

Here’s what my car does on race gas, with drag radials, with the suspension stiff as fuck from a 50 punch. I miss traction.

http://videos.streetfire.net/player....D-74E614902E14

Here's a detailed description of what happened -

I put my BFG drag radials up front and stiffened up my suspension as much as I could (short of pre-loading the springs!)...

We went from a 50 punch both times. That's 5000 RPM's in 2nd gear for me. I regularly spin my 115,200 mile old engine to 8000 RPM, so I wasn't too worried about having to instantly shift.

Anyway, I didn't bother brake-boosting because I knew traction would already be at a premium. Instantly after going WOT, the tires were spinning. I'd tap my good friend, Mr. Rev-Limiter and shift to 3rd. I'd be welcomed into 3rd gear by what felt like an eternity of turbo lag (due to spinning the tires rather than actually accelerating in 2nd gear). As soon as boost built, the bike's pull would be STOPPED. As some of you noticed, it almost looked like I was starting to reel the bike in.

The first race was 50-160. The race posted here was 50-140 mph or so.

I was running 24-25 psi, 105 octane unleaded with the ignition timing pretty damn advanced.

With the current set-up (IN AWD MODE), the car traps 126 mph on pure 93 octane pump gas @ 22 psi. It trapped 129 mph @ 29 psi with the ignition timing watered down greatly. At the same boost level, I've been able to add 9* of timing since then and the car pulls much harder, even on lowly 105 octane. One clean pass will give me the 13x.xx mph traps that I want.

For those of you that are curious, the 600 has at LEAST a header and exhaust. The owner has no idea what mods are on the bike because it was modified by the previous owner. According to the current owner (not a newbie!), the bike may have a cam because of the way it idles.

Anyway, what REALLY matters is that we all had a lot of fun and no one got arrested!!!

Sorry for going all over the place, but it sounded like fun.

-Adam McDougal

[stealthxtreme4]

Very nice update. Wish I could go for a ride in your car, I have turbo envy and I've never even ridden in anything faster than my VR-4.....

[TRILIGHT]

Cool! Haven't been able to get that last vid to play for some reason but I keep clicking on it. Oh, and did I happen to mention "damn you and Case for cutting me out of the E16G deal and not at least selling me his 13T setup"? Yeah. Just thought I'd say it again. LOL

[AdamVR4]

Originally Posted by stealthxtreme4

Very nice update. Wish I could go for a ride in your car, I have turbo envy and I've never even ridden in anything faster than my VR-4.....

Haha, it's about 1/10th as much fun FWD as it is AWD.

If you're ever in Austin, you'll have to hit me up.

Originally Posted by LUSTFUL

Hi Adam,
I watched your idle vid posted in the AWD section. I noticed the scanmaster and some other electronics on top of it on your steering column. What was the other electronic device. Also I have heard of the scanmaster, but really I am not sure what all it can monitor. Can you perhaps shed a little light on this subject? I didn't think that making a whole new thread about this would be worthwhile, so I thought I would just ask someone who is using them. Thanks
-Jon H

Sorry if you didn't want me to post this PM, but if you were contemplating making a new thread about it, we might as well discuss it right here in my 10-topic-thread, haha!

It's actually just a Blitz DSBC-R. It's the 3rd boost controller I've had on this car, haha -- Blitz SBC-iD, GReddy E-01, Blitz DSBC-R.

The scan master can monitor everything I showed in the vid -
O2 voltage, knock, RPM, fuel trims, coolant temp, battery voltage, TPS, ignition timing... There are a billion functions that I don't use. You can use it to measure acceleration (in G's), 1/4 mile ET, I believe you can have it display a WBO2 sensor as well... You can also set it up to log. I use it about as basically as it can be used. It's a very cool little device, and in addition to my 8000 rpm ECU, it was quite a value.

Want more info? Go here:
http://fullthrottlespeed.com/itemdes...SM~eq~~Tp~.htm

Easy install, great tool. VR4-Case has one too. It's great for drag racing because it sits right under the tach. O2's, knock, RPM - all in one place.

[maTT]

what kind of bracket did he have on the xcase?

[LUSTFUL]

and you can monitor your O2's, knock, and one other variable all at once on the fly? That is definetly worth it then. I was thinking it was something along those lines, but unsure as to what all it measured.
So you are just measuring narrow band O2 voltage then? That surprises me a little bit to be honest, I would have figured you would have opted for a wideband setup.

Now does the scanmaster log everything that like say the pocketlogger, or shivers logger will? And then can you output it to say your computer for example so you can view it and then post it up. Sounds like a damn good tuning tool and it sits in a very nice spot.
Sorry didn't want to start a new thread, and I figured this was common knowledge to all of the AWD guys...I was just trying to get caught back up on the same page.

[AdamVR4]

Originally Posted by maTT

what kind of bracket did he have on the xcase?

Stock bracket... He had bald, shitty tires... We expected lots of tire spin... But the track was OURS for the night... There were 3 VR4's racing and like 5 other cars total. So we got lots of passes in and the VHT was thick. The tires hopped for a second and boom went the x-case.

Originally Posted by LUSTFUL

and you can monitor your O2's, knock, and one other variable all at once on the fly? That is definetly worth it then. I was thinking it was something along those lines, but unsure as to what all it measured.
So you are just measuring narrow band O2 voltage then? That surprises me a little bit to be honest, I would have figured you would have opted for a wideband setup.

Now does the scanmaster log everything that like say the pocketlogger, or shivers logger will? And then can you output it to say your computer for example so you can view it and then post it up. Sounds like a damn good tuning tool and it sits in a very nice spot.
Sorry didn't want to start a new thread, and I figured this was common knowledge to all of the AWD guys...I was just trying to get caught back up on the same page.

Yeah you can monitor all those things on the fly. I don't even datalog, I just stare at o2, knock, and RPM as I fly thru 3rd and make changes based on that.

I'm QUITE certain you can log information off of the scanmaster, but I've never done it. I tune like a crazy ass hole based on feel and what I see real-time... Yes, all that with a stock NBO2 as well, haha...

Hopefully someone else will chime in regarding the logging. Does it not mention it at all @ fullthrottlespeed?

[Rustang Cobra]

you can log with it, you use a "phone line" cable with a serial adapter to plug it into a palm pilot, i use it all the time

it logs boost as well as the other things mentioned, you can also log fuel pressure

currently i use it mostly to log boost vs rpm vs wideband vs timing and knock....i use this on top of the maftpro's logging capabilities, its pretty cool how it all works together

i always have the wideband / Knock on display when i go WOT

btw...your steering column looks EXACTLY like mine, except my mileage is much nicer to look at



your car sounds like DEATH RAINING FROM THE HEAVENS!!! fuckin badass dude

show us some in car vids of you running through some gears

[AdamVR4]

Originally Posted by Rustang Cobra

you can log with it, you use a "phone line" cable with a serial adapter to plug it into a palm pilot, i use it all the time

it logs boost as well as the other things mentioned, you can also log fuel pressure

currently i use it mostly to log boost vs rpm vs wideband vs timing and knock....i use this on top of the maftpro's logging capabilities, its pretty cool how it all works together

i always have the wideband / Knock on display when i go WOT

btw...your steering column looks EXACTLY like mine, except my mileage is much nicer to look at



your car sounds like DEATH RAINING FROM THE HEAVENS!!! fuckin badass dude

show us some in car vids of you running through some gears

NICE MILEAGE! ha!

Thanks for the additional scanmaster info. I knew it did all kinds of neat shit...

Hahaha, that's about the funniest thing I've ever heard about the way my car sounds.

I have footage of in-car highway FWD, another race with the bike, and a FWD burn out that I need to get from a buddy of mine. If EricVR4 can ever get the video off his camera, he has LOTS of good in-car day-time stuff... heh.

[mikes2nd]

ive got a 5 speed transfer case bracket for sale 275$ shipped