Finally got my car....4ht (or 6th) time is a charm!!!!!!!!!
02-13-2006, 08:17 PM
#1
Finally got my car....4ht (or 6th) time is a charm!!!!!!!!!
Hey Guys
Many of you know the history of my car. Let me dispell some mystery. This is the 6th time we had to go into the engine, but this is the 4th block in this car's history. First stock block went due to a rod bolt failure. Second block, my first built block, was the crappy Z1 Motorsports-built longblock, that was trash from top to bottom. We toasted a ring when invetigating a 4" MAF housing solution. Then I sleeved the block (AEBS - 3rd block), and the work done on it was faulty, as there were metal shavings cought in between the sleeves and the block, and two of the sleeves leaked. A head gasket change (twice) did NOT solve the problem. After the block was fixed and pressure tested, I reassessed by HP goals once again, and figured that I would be ok with a stock block and did not really need the sleeves. I have 550cc injectors and the 550 or so whp that they would afford would be sufficient for me. That brings me to this current/latest block - Scott Performance-built block #4.
I gotta tell you, we went over the entire engine once again, including hte heads...whcih is when we found out that hte Z1-built heads (the valves) were leaking badly, which contributed to the 20%+ leakdown numbers on every cylinder.... Ted Taormina of Scott Performance in Santa Clara did the work this time, and i should have gone this route the very first time. I wish i knew as much a year ago as i do today, thigs would have been different...anyway, water under the bridge...
Ted did a truly superb job. I ahve never ever seen/felt an engine this smooth (knocking on wood as I am typing this). It is silky smooth. Here is the list of components that I ended up with:
PE TT kit.. modifications to the poor Pre-IC Y-piece coming soon (before tuning)
Arias Xtreme duty pistons 9.0:1 (0.020" over) - thanks to Sharif for these.
Pauter Rods
ARP main studs
Stock head studs
Cometic head gaskets
Light headwork (springs, etc.. by Scott Perf.)
Motordyne 1/2" plenum spacer
eManage Ultimate
PE 550 injectors (officially sold as 510cc)
Innovate! Motorsports MTS - 17 channels (soon 22 channels).
-- Dual bank wideband, TimingAdvance, self-calibrating MAP/Boost, TPS, APPS, EGT, CHT, InjDuty, CamDuty, ECT, IAT, MAF, etc..
Walbro 255lph with CJM -8AN Wye and custom FPR correction kit for the sedan
AAM fuel rails, -8AN main fuel feed.
SGP
etc....
I just put about 1400miles on the car with varying loads. In the last few days, have started to push the car... and it's amazing how well it runs (again knock on wood). It's nice to be back! This time around, with the Innovate's MTS having matured as much as it did, I am expecting the tune to be very good. Will get into that upon completion of some of my work projects...
Dyno plot coming soon.
Again, a huge thanks to Ted Taormina of Scott Performance, I mean it. I have really not seen anyone this meticulous when it comes to building engines.
Gurgen
Many of you know the history of my car. Let me dispell some mystery. This is the 6th time we had to go into the engine, but this is the 4th block in this car's history. First stock block went due to a rod bolt failure. Second block, my first built block, was the crappy Z1 Motorsports-built longblock, that was trash from top to bottom. We toasted a ring when invetigating a 4" MAF housing solution. Then I sleeved the block (AEBS - 3rd block), and the work done on it was faulty, as there were metal shavings cought in between the sleeves and the block, and two of the sleeves leaked. A head gasket change (twice) did NOT solve the problem. After the block was fixed and pressure tested, I reassessed by HP goals once again, and figured that I would be ok with a stock block and did not really need the sleeves. I have 550cc injectors and the 550 or so whp that they would afford would be sufficient for me. That brings me to this current/latest block - Scott Performance-built block #4.
I gotta tell you, we went over the entire engine once again, including hte heads...whcih is when we found out that hte Z1-built heads (the valves) were leaking badly, which contributed to the 20%+ leakdown numbers on every cylinder.... Ted Taormina of Scott Performance in Santa Clara did the work this time, and i should have gone this route the very first time. I wish i knew as much a year ago as i do today, thigs would have been different...anyway, water under the bridge...
Ted did a truly superb job. I ahve never ever seen/felt an engine this smooth (knocking on wood as I am typing this). It is silky smooth. Here is the list of components that I ended up with:
PE TT kit.. modifications to the poor Pre-IC Y-piece coming soon (before tuning)
Arias Xtreme duty pistons 9.0:1 (0.020" over) - thanks to Sharif for these.
Pauter Rods
ARP main studs
Stock head studs
Cometic head gaskets
Light headwork (springs, etc.. by Scott Perf.)
Motordyne 1/2" plenum spacer
eManage Ultimate
PE 550 injectors (officially sold as 510cc)
Innovate! Motorsports MTS - 17 channels (soon 22 channels).
-- Dual bank wideband, TimingAdvance, self-calibrating MAP/Boost, TPS, APPS, EGT, CHT, InjDuty, CamDuty, ECT, IAT, MAF, etc..
Walbro 255lph with CJM -8AN Wye and custom FPR correction kit for the sedan
AAM fuel rails, -8AN main fuel feed.
SGP
etc....
I just put about 1400miles on the car with varying loads. In the last few days, have started to push the car... and it's amazing how well it runs (again knock on wood). It's nice to be back! This time around, with the Innovate's MTS having matured as much as it did, I am expecting the tune to be very good. Will get into that upon completion of some of my work projects...
Dyno plot coming soon.
Again, a huge thanks to Ted Taormina of Scott Performance, I mean it. I have really not seen anyone this meticulous when it comes to building engines.
Gurgen
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02-14-2006, 08:10 AM
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hey Gurgen!!! long time no talk. I actually had my car at a hiatus for awhile because my engine build LITERALLY took a year!! But yea everything is getting installed now. Just wondering what made you lower the compression to 9.0:1 on your pistons from 9.3? I remember you back in the days doing all your comparison charts and saying that taking in consideration our engine and the size turbos provided with the PE kit that 9.3:1 would be the most responsive choice. Or are you just aiming for more power now?
02-14-2006, 09:10 AM
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Originally Posted by TwoK4drSi
Damn you got ***** bro. I woulda said *** it after the built block. I am glad things are finally looking up for you and please post some pics!
Congrats though! I am happy to hear you have your car back. I am going on block # 3......1 stock and 2 built. I pick my car up from SGP on Friday. I almost threw in the towel, but decided to stick it out. I even told SGP I didn't want anything over 475whp, but after speaking with Shawn yesterday he persudaded me to upgrade my injectors and to go for it!
Just like you I wish I knew what I know now last year when I started modding my car. Unfortunately I learned by getting dragged through some deep chit and spending lots of $$$.
02-14-2006, 09:32 AM
#12
Originally Posted by Gman2004
+1
Congrats though! I am happy to hear you have your car back. I am going on block # 3......1 stock and 2 built. I pick my car up from SGP on Friday. I almost threw in the towel, but decided to stick it out. I even told SGP I didn't want anything over 475whp, but after speaking with Shawn yesterday he persudaded me to upgrade my injectors and to go for it!
Just like you I wish I knew what I know now last year when I started modding my car. Unfortunately I learned by getting dragged through some deep chit and spending lots of $$$.
Congrats though! I am happy to hear you have your car back. I am going on block # 3......1 stock and 2 built. I pick my car up from SGP on Friday. I almost threw in the towel, but decided to stick it out. I even told SGP I didn't want anything over 475whp, but after speaking with Shawn yesterday he persudaded me to upgrade my injectors and to go for it!
Just like you I wish I knew what I know now last year when I started modding my car. Unfortunately I learned by getting dragged through some deep chit and spending lots of $$$.
hey Gurgen!!! long time no talk. I actually had my car at a hiatus for awhile because my engine build LITERALLY took a year!! But yea everything is getting installed now. Just wondering what made you lower the compression to 9.0:1 on your pistons from 9.3? I remember you back in the days doing all your comparison charts and saying that taking in consideration our engine and the size turbos provided with the PE kit that 9.3:1 would be the most responsive choice. Or are you just aiming for more power now?
Yes, I do believe that 9.3:1 is the ideal choice here. I went with 9:1 primarily because of time contraints (did not have another 3 weeks to wait for a special order Arias Pistons). the extra margin of safety is also nice. I do not notice a sizeable difference in off-boost response between the 9 and 9.3 to 1, although I do notice it and can say with some certainty that 9.3:1 was in fact a bit more responsive for those first few fractons of a second when the PE1420's are spooling up. Again, not a big deal with these turbos because they ARE so responsive.
leemik,booger, tig, Kyle, Brian, lcg... thanks for the good wishes. Although the deep pockets I do NOT have, certainly not now. I just could not quit.
Congrats Gurgen! You;ve been through a lot, and I admire your drive to stick with the project...
I'm interested in the mod you've made to the Pre-IC Y-piece - PM for details and pics...
I'm interested in the mod you've made to the Pre-IC Y-piece - PM for details and pics...
I'll keep you guys posted further... I hope to shoot a video sometime very soon.
02-14-2006, 09:39 AM
#13
Here is the Y-piece that I am speaking of:
Two 45mm charge tubes merging into a single 50mm, then transitioning rather abruptly into a 70mm. If you do te cross-section area calulation, you will see that a dual 45mm is equivalent to a single 64mm pipe, which is exactly 2.51" So, i plan t get a mandrel U piece and cut out the appropriate section to replace that middle 50mm section.
Two 45mm charge tubes merging into a single 50mm, then transitioning rather abruptly into a 70mm. If you do te cross-section area calulation, you will see that a dual 45mm is equivalent to a single 64mm pipe, which is exactly 2.51" So, i plan t get a mandrel U piece and cut out the appropriate section to replace that middle 50mm section.
02-14-2006, 12:19 PM
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Sweet are you ever going to bring it to the thursday meets in chino hills? btw glad your car is back on the road after talking with you seemed like you had a huge headache with that puppy
