RB27 Tuning Update! Need Help.... Issues stilll...

[Shocker]

Actually the check valve in question is (normally) behind the engine along the firewall about half way along the length of the brake booster vac line. The valve is an inline part that to my knowledge just looks like a plastic coupler or something similar. I have a '90 and that's where mine is...

yeah I definitively accidentally deleted that lol, mines an 89 I'm sure they are the same...

[gawdzilla]

Sounds like a good plan to me! better get out there I'm always game for a few pulls.

i'm surprisingly close to it.. like 1-1.5 hrs away. i'll see if my friends want to go

[Shocker]

i'm surprisingly close to it.. like 1-1.5 hrs away. i'll see if my friends want to go

**** lol, I think I'm 5 hours... yeah register before the 21st of this month for the Nico Club part thats what I'm doing.

[wawazat8402]

When my friend had Tony Paulo tune his RB20, the check valve off an Integra GSR was recommended. He said he preferred the diaphragm check valve setup opposed to the floating ball. My friend switched them out and said even when brake-boosting his pedal never gets very hard.

Just a suggestion on an alternative for you to check out.

[kouki-gymkhana]

Glad to hear that your problem was a simple boost leak. I was worried you were going to have to drop some more serious coin on injectors, etc. One thing you may consider to prevent the charge pipes from popping off despite the fact that they are bead rolled is to actually steal a page from some of the big turbo supra guys running 30+lbs of boost: They actually weld fittings onto the end of the pipes and clamp across the couplers. Think of the latch on a toolbox and you'll get what I'm trying to describe. Not sure if you're likely thin-walled aluminum piping will hold up to that kind of stress but you could consider it an excuse to upgrade to some trick mandrel bent steel piping.

Still waiting for the vids. I've watched your vids from that ill-fated dyno session before the motor imploded and the car sounds like a monster! I'm waiting to hear it at full song so get the lead out! (Don't blow it up though)

[craz4240]

A good trick for silicone couplers is to put a small amount of dish soap inside the coupler where it lies on the pipe and a slight bit on the pipe it will act sort of like a glue due to the polymer and help keep those bad boys in tact...

[Shocker]

A good trick for silicone couplers is to put a small amount of dish soap inside the coupler where it lies on the pipe and a slight bit on the pipe it will act sort of like a glue due to the polymer and help keep those bad boys in tact...

If these problem's persist I'm going to have to try that.

Kouki, thanks man. I'm going to try and upload the footage later tonight. After class I'm stopping to pick my buddies camera I used and upload it to my computer. I have just reg USB... not sure how long it will take me....

[Carl H]

dont forget the hairspray trick too...wont get slick like soap when it rains.

[Darius]

Not to mention that it makes your car look like it runs on "GIRL POWER" with bubbles shooting out the tail pipe. Might as well rock a glitter paint job too.

[Carl H]

not another bassboat s chassis!

Not to mention that it makes your car look like it runs on "GIRL POWER" with bubbles shooting out the tail pipe. Might as well rock a glitter paint job too.

[240z4u]

not another bassboat s chassis!

Crap, I thought I had the only one LOL.

Aqua net works great for crappy 80s hairdo's and holding IC couplers on.

Evan

[Shocker]

Ok Vids in the first post with a description, heres the link again if your feeling lazy...and description...

Well finally here it is, start up, one pull to 5500 and holding while tuning, and then a little bonus.... The dyno run was only 14 psi with basically zero timing added, this was our last good one before we developed a problem which has now been fixed, hopefully will be back there this weekend or next week to finish up....

The sound quality of the camera doesn't do the car justice...

http://www.youtube.com/watch?v=UsQLu-cQrso

[240z4u]

Sounds good dude.

I see how you cooked the paint!!! Is that the run where the IC pipe blew off? I saw a puff of smoke while you were making the pull.

Evan

[Chaos the Xile]

omg listen to that hairdryer blow! sounds awesome! can't wait to see the final numbers on her!!

[Shocker]

Sounds good dude.

I see how you cooked the paint!!! Is that the run where the IC pipe blew off? I saw a puff of smoke while you were making the pull.

Evan

Yeah you know, now that I think of it, it might have blown off at the very end.... because after that she was 2/3 to 1/2 of what it was. Notice how there really is no change in sound? lol Thats why it was so ****ing weird.

Paints worse now, the bumper actually has a hole in it that I can stick my hand in.... :/ I need to do something about that lol.

Thanks guys. I get to fix my fuel issue today! yay!

-Cory

[johnzm]

thanks for finding out your problem i was having the same one, and i *think* mine was cause by a vaccum line that blew off.

ill know later tonight when i do a couple pulls, too much traffic in the morning to mess around

[Darius]

Aqua net works great for crappy 80s hairdo's and holding IC couplers on.

Don't forget about fueling potato guns

Sounds awesome Shocker! I was just going to ask what that puff of smoke was towards the end of the run. Seemed like it came out of the middle of nowhere. Evan is on top of it!

You're getting it tuned again this week right?

[Shocker]

Thanks Matt, trying for Friday, I'm calling my buddy Peter after work who is part owner of the shop, if the spot is still open I'll be driving down then. Problem is its also my good friends 21st b-day Friday lol. A bunch of us are all supposed to take her out... so I best be home before that... :/

I'll be bringing some go-gon down with me to clean the couplers if they blow off again, and some aqua-net. I'll be going for the slick look.

[Carl H]

kinda looks like its injecting too much fuel for the anti knock when you let off full throttle.

[240z4u]

Can't wait to hear the results. Good luck.

Sounds sick man, I love cammed motors!

I would just trim the bumper out and put a larger can on the back to fill the hole haha.

Crazy thought, but you may wanna try using the aqua net on one side. Its going to be hell trying to get it removed when you want it taken apart.

Evan

[Shocker]

kinda looks like its injecting too much fuel for the anti knock when you let off full throttle.

You talking when I was reving? Or on the dyno? A/F's that run were 11.1-11.3.

Reason for those massive flames was now I realize the boost leak... not sure which you are speaking of. I think my tuner was lifting a tiny bit while doing the run trying to match the proper RPM on the dynapac.

[Carl H]

i was refering to when you let off the throttle there...might be because of the boost leak but my car injects a bit of fuel on throttle closed after hard revving presumably to prevent knock.tends to result in large flames out the back at 22psi on the 2nd to 3rd shift.

[Shocker]

I'll ask my tuner about that, see what he thinks. I see what you are saying though. Gets rid of that possible high a/f spike right after letting off at WOT.

What did your 20 make with the 30r? Or haven't you been back to find out?

[Coolwhip]

[Shocker]

Gayass, there is no more popping! :P

Looks like I'm heading down Saturday Morning now, Seems like my valve cover right next to my downpipe was leaking the oil... not sure if was from a slight overfill, or my oil pressure being 65-70 while doing a pull, or from all the heat making the gasket weak.... But I tightened the piss out of the bolts for it, so hopefully it goes away...

Fixed the fuel pressure issue with the adpater, had to drive to the UPS store (25miles away) after the driver ****ed up which house to take it to. Mounted the AERO FPR on the shock tower now, tightened up a heater hose which I think might have been leaking...

I hate leaks.. :/ Makes me feel like my cars a POS.

Found out my Mckinnny Motor mount is starting to melt.... That could be bad. I Might need a solid puck of steel, you guy's know of Mack makes them? This one just cant handle the heat...

Temps are staying down now at about 175-180, I did a 5th gear pull yesterday, right at about 4-4100 she really was kicking in, and I let out. Thats 100-105 ish, but the pull was just growing and growing. Not to mention the car sounds like a damn fighter plane taking off. I cant even imagine at 18psi, more timing, and reving to 7800...

I'll keep you guys posted, the new clamping on the coupler seems to be staying!

EDIT: Lilskyline I'll have your Nismo unit out to you after class today. I'll email you the tracking.

[Coolwhip]

I love reading this crap, its like Love Novels for men & their cars.

[Shocker]

I love reading this crap, its like Love Novels for men & their cars.

Why of course, it is my love and passion. Every time I start it up I'm reminded why I dumped my life savings into it.

Some movie theater popcorn does sound amazing right now, a jumbo tub, smothered in that warm greasy butter, sprinkled just right with the finest sodium chloride. mmhmm.

[Darius]

You can't talk like that right now. I'm so hung over and it is making me incredibly hungry.

[Eikon]

Nice RB20.. don't be ashamed of it.

HAHAHAHA

Sounds incredible! I can't wait for this weekend to hear the next chapter.

[rb25drag]

So when are you hitting the track?