Thread: Operation SR24VVL IN PROGRESS ONCE AGAIN

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2012-03-15 13:02:50

#791

SR20GTi-R

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Originally Posted by cory

Unless they changed their centerlines for the v3s the exhaust cam should be pretty good at 0. Sucks to hear, hopefully you get it sorted out.

No centerline change. Rocco is using the same part # cam.

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Tired..of the bullshit.

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2012-03-15 15:07:45

#792

Teal97

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Originally Posted by STRATTON

they clayed the motor right ?
stratton.

thats a Q i'll be asking him, face to face. like "how did you check for piston to valve clearence"?

Originally Posted by SR20GTi-R

Why are you separating the cam switch over?

through testing cams and headers on the 2.0 ve with turbofreak,
i've found it helps smoothen the the power curve. been doing it this way since day 1.

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2012-03-15 16:14:34

#793

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edit:..

Last edited by SR20GTi-R on 2012-03-16 at 15-21-22. Reason: Done

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2012-03-16 01:04:51

#794

Teal97

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Originally Posted by SR20GTi-R

Some advise.

1. When dealing with this cam you will do more harm than good switching the cams by themselves.

advice taken.

2.You have a stroker crank now, the entire powerband will come on earlier. You are switching the cams at 6,000+ RPM and the exhaust after that. The motor will peak way before 8000RPM so you are killing yourself.

that was a starting point. presently @ 4300/4700. we gained alot in the low end by switching earlier. the powerband still dips/drops once the exh cam hits.

3.The choke on the header now is doing more harm than good. The last merge on the 2-1 will act as a choke on a header that is already restricted by radical bends. The original header form would have done better for you.

wellll

man, did i screw up the quotes!

after one of the pulls when the engine came back down to idle, a really bad hunting idle, i heard a metallic TINNGGG come from the valvetrain area

. i immediately shut her down. on restart she ran OK with no more noises. i called it quits at that time and pulled her off the rack. i was able to drive the 50 miles or so home staying on the small lobes the whole time. it seemed to run OK. next week i'll scope the combustion chambers for evidence of piston to valve contact.
after talking to the owner of buds machine shop today, he
assured me the builder took extreme care in the assembly of the motor (don't they all?) he also suggested i bring the head in to get checked out

the saga continues

Last edited by Teal97 on 2012-03-16 at 01-08-35.

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2012-03-16 01:20:27

#795

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edit:..

Last edited by SR20GTi-R on 2012-03-16 at 15-20-54.

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2012-03-16 01:38:27

#796

STRATTON

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Originally Posted by Teal97

wellll

man, did i screw up the quotes!

after one of the pulls when the engine came back down to idle, a really bad hunting idle, i heard a metallic TINNGGG come from the valvetrain area. i immediately shut her down. on restart she ran OK with no more noises. i called it quits at that time and pulled her off the rack. i was able to drive the 50 miles or so home staying on the small lobes the whole time. it seemed to run OK. next week i'll scope the combustion chambers for evidence of piston to valve contact.
after talking to the owner of buds machine shop today, he
assured me the builder took extreme care in the assembly of the motor (don't they all?) he also suggested i bring the head in to get checked out

the saga continues

he wants you too pull the head off ? what did the spark plug tips look like ?

stratton.

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2012-03-16 03:32:40

#797

lynchfourtwenty Online/offline status of lynchfourtwenty is unknown

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hopefully this is all ironed out by summer time

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My Car Thread http://www.sr20-forum.com/members-rides/15788-lynchs-ve-se-r-project-thread.html
My Turbo Thread http://www.sr20-forum.com/turbo/50178-lynch-s-ve-t-thread.html

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2012-03-16 03:45:44

#798

Teal97

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Originally Posted by STRATTON

he wants you too pull the head off ? what did the spark plug tips look like ?

stratton.

haven't checked anything yet. just drove it home and parked it.

Originally Posted by lynchfourtwenty

hopefully this is all ironed out by summer time

funny guy.

at this rate, i may not retire as soon as i'd hoped

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2012-03-16 04:08:40

#799

lynchfourtwenty Online/offline status of lynchfourtwenty is unknown

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you know how much i love the big ve's man, but really it seems like a huge pain in the ass and a money pit..

i think once you get it dialed in an everything's working in perfect harmony it'll be one bad machine.

kinda funny though how everyone was telling you to add a choke to the header, and now dude says its to much? wouldn't it have been nice to know that before having it modded?

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My Car Thread http://www.sr20-forum.com/members-rides/15788-lynchs-ve-se-r-project-thread.html
My Turbo Thread http://www.sr20-forum.com/turbo/50178-lynch-s-ve-t-thread.html

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2012-03-16 08:58:28

#800

Teal97

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considering it has equal or more whp than a typical fully bolted 2.0 ve on N1's and a helluva lot more wtq (all on the small lobes) it was a blast to drive. the header is the least of my worries right now. i'll no more Monday when i get to work on it. hell, i might even bolt up the ssac for giggles later on just for a comparo. but 1st things 1st.

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