So the head is now torn down, about half my valve stem seals were leaking, the seals are hard as rock and crunchy, they've never been changed to my knowledge with 150k miles on the car, long over due.
The valves themselves were in pretty good conditions, I cleaned them all and lapped them all in their respective seats, also pretty good for their mileage, no pitting, just dirty.
Cleaned it all and started to reassemble and found I received the wrong valve stem seals, so it'll be a couple days before I get the right ones. Then I'll get the new springs & retainers in along with the GSC S2 cams.
I spent a week or so tearing down the bay and cleaning it up and as of yesterday it's all primed and ready for some color.
Nice work indeed Jason! Were you burning visible oil with those dry stem seals? The reason i ask as i have 200,000 miles on mine & no signs of smoke as of yet
1996 Eagle Talon TSi AWD 1999 Eclipse GST 5sp swap 1991 3000GT VR-4
Nice work Jason, what colour you going with? Special type of paint?
OEM color, Dupont Cromax pro base and clear.
Originally Posted by Alex Akachinskiy
Nice work indeed Jason! Were you burning visible oil with those dry stem seals? The reason i ask as i have 200,000 miles on mine & no signs of smoke as of yet
I had a small puff on start-up and when the car idled for a while. The valves affected were noticeably tarnished by oil running down them.
It's just getting a set of Evo 8 springs/retainers. No machining other than the lapping I did. It's still flat, seats are good and polished up nice with the lapping. I also don't plan to be revving this to the moon on the stock bottom end.
Ok cool, am hoping to do something similar with the head I have sitting on my work bench but it has a bent valve, wasn't sure if I can just swap it and lap it or if I needed to take it to the shop.
"Old Blue" 91 Talon TSi AWD "Super Enthusiast" 91 Talon TSi AWD Checkout DSMFAQ.com!
Re: Winter Project
[Re: Bryan Lawrence]
#439528 April 28, 201501:23 pm UTCApril 28, 201501:23 pm UTC
Ok cool, am hoping to do something similar with the head I have sitting on my work bench but it has a bent valve, wasn't sure if I can just swap it and lap it or if I needed to take it to the shop.
Bent valves mean your guides need inspection and likely replacement.
Never fear a challenge, Amateurs built the Ark, Professionals built the Titanic.
Got the correct valve stem seals today so the head is now fully assembled.
Locked down and ready to install keepers Total time to install all the springs/keepers/retainers was under 20 minutes.
GSC S2 cams installed.
One little downfall with the spring compressor is I found out the tube I used is slightly too large for the smaller Evo retainers, no big deal though, just used an old valve seat and it works perfect.
Very impressive progress as usual Jason. Looks like you are reusing rocker arm on this build. I heard good things about evo aluminum rocker arm MD375091. Price adds up quite a bit when buying all 16 of those.
1996 Eagle Talon TSi AWD 1999 Eclipse GST 5sp swap 1991 3000GT VR-4
Re: Winter Project
[Re: Jason Drew]
#439814 May 10, 201503:28 pm UTCMay 10, 201503:28 pm UTC
Pretty well ready to drop in the motor, probably going to happen later today.
I've also known my SBR manifold has been cracked(notorious) for a year or 2 but now has developed into 2 cracks so I decided to take care of it. This tig is so handy
I blasted the cracked areas then ground out and drilled the ends of the cracks, preheated it and welded it and returned it to the oven to cool over a couple hours. Time will tell how long it holds. If it fails I may just build my own manifold.
I only had to threaten to sell the damn thing 3 or 4 times today but she's alive. Somehow, somewhere there's a break in one the outputs from the PTU to one of the coil packs. After changing out every part possible that could cause lack of spark on cylinders 2&3 I tracked it down to the wiring and where in the wiring and it doesn't sound like a Subaru anymore. Guess the wiring harness is probably just getting old and brittle and has been moved around one too many times.
I like GSC S2's idle a lot more than your previous setup. Idle is defiantly smoother compared to before:
I do like the "No low end power is lost vs the stock cams" That alone is good enough reason for me to upgrade.
Here is a full description for GSC S2's
Quote
The S2 cams are designed for those with more power in mind or a larger turbo. No low end power is lost vs the stock cams when used with the larger turbos. The S2 cams will show gains of 50-70whp over the stock cams and in some cases more in the higher RPMS. Great for 2.0L engines revving to 9000rpms or for Stroker motors revving to 8000rpms. The S2 Cams are suggest to run on our upgraded Beehive valve spring replacement or can be run at the stock revlimit and factory boost on the stock spring. Designed for a rev range of 4000-9000 RPMS(2.0L or 3000-8000 2.2L+), 400-700whp applications. S2 cams can run on Factory ECU with custom flashing. Made 100% In the USA.
1996 Eagle Talon TSi AWD 1999 Eclipse GST 5sp swap 1991 3000GT VR-4
Re: Winter Project
[Re: Jason Drew]
#440029 May 20, 201503:41 pm UTCMay 20, 201503:41 pm UTC
S2's and the hx35 were by far my favourite street setup. Still had good bottom end, would spool up quickly and had awesome airflow all the way through to 8k rpm.
Good mid power band, while maintaining that "big turbo" feeling (delayed spool and loud spool) but still hit hard and early enough to not feel laggy.
Jason, Any issues with high rpm at cold idle after switching to EVO 3 IM? The reason i asked is this:
Originally Posted by Ryan Laliberte
Car runs great, except for on a cold start. I get a VERY high idle for about 2 minutes, after that it's good. I'm not sure if that has to do with the FIAV or whatnot, I'm running a 1G throttle body with all 2G sensors.
I managed to get out to the track one last time for the year, it was cold but sunny and I couldn't resist one more chance at the 1320. I'll be installing a staging brake over the winter to try to get these 60' times in check.