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08-04-2005, 08:38 AM
#176
confuzed member
Join Date: Jul 2003
Location: Salinas, CA
Posts: 3,074
Good lord you're turbos were gone! How many miles were on them? Are you having the machine shop do any cool things for you? While they're out, you should price check how much it would cost for a port/polish/3 angle valve job. Maybe some ferrera valaves would be nice. Good luck on the build!
I am SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOO Sorry!!!
08-04-2005, 10:17 PM
#178
Registered User
Thread Starter
Join Date: Nov 2003
Location: Gerber, CA
Posts: 3,672
Originally Posted by Riz Z Speed
Of course it's always more fun when it's someone else's car. 
Rizz-
I'll take lots more pictures as it goes back together so then you'll feel like you're here.
Those turbos had 150k plus on them, so I got my mileage out of them, literally.
I'm not doing a full rebuild. What you see is likely as far as I'm going into it.
I had asked Robert at Z1 quite a few questions and he responded today. He says that the 525 turbo's are awesome and should last as long as the stockers as long as you take care them (proper oil changes). Incredibly quick spool-up and an amazing 'throw you back in the seat' feel. He recommened I hone the exhaust manifold myself and save a few hundred bucks. Also recommended I put it back together with ARP head and main bolts with a cometic headgasket. The stage 2 head creates approx 15-18 more HP over stage 1. Stage 3 is a 25-30 HP increase over stage 1. I'm undecided. He estimated 425-430 HPat the wheels on pump gas (15-16 psi)
I got the name of the machine shop that the Nissan dealership outsources all of this kind of work to. Nissan said the guy is great and they've been using him for over 10 years. I'll check him out.
08-05-2005, 10:20 AM
#180
confuzed member
Join Date: Jul 2003
Location: Salinas, CA
Posts: 3,074
If you're going with MHG's, then make sure the BLOCK as well as the heads are PERFECTLY flat! check the roughness grade needed for the MHG as well. ARP's are awesome! I love em! How do the cylinder walls look? Minimal scoring?
08-09-2005, 08:50 AM
#182
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Join Date: Nov 2003
Location: Gerber, CA
Posts: 3,672
The local shop is doing the valve job for $350. Dad felt that the guy knew what he talking about. He called him and discussed the job with him. 3-angle grind, test all springs, valves and guides, mill the head(as little as possible), pressure test, etc. This stuff is new to me.
I'm not having the head ported. The cost outweighs the benefit.
Z1 sells a set of upgraded valve springs for $250. You guys see any benefit to running upgraded valve springs with a stock cam?
I'm not having the head ported. The cost outweighs the benefit.
Z1 sells a set of upgraded valve springs for $250. You guys see any benefit to running upgraded valve springs with a stock cam?
08-09-2005, 03:41 PM
#183
Bad Speller
Join Date: Sep 2004
Location: Moreno Valley, CA
Posts: 1,832
Originally Posted by 91zxtt
You guys see any benefit to running upgraded valve springs with a stock cam?
08-10-2005, 01:26 PM
#185
Registered User
Join Date: Apr 2004
Location: Bum Fak SD right now...
Posts: 139
porting and polishing heads is simple and can be done yourself. the only con is it can be time consuming. check out these articles on porting:
http://www.sa-motorsports.com/diyguide.shtm
http://moparmusclemagazine.com/techarticles/5118/
Something to think about...
http://www.sa-motorsports.com/diyguide.shtm
http://moparmusclemagazine.com/techarticles/5118/
Something to think about...
08-13-2005, 05:18 PM
#186
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Thread Starter
Join Date: Nov 2003
Location: Gerber, CA
Posts: 3,672
The machinist said I need 4 exhaust valves and of course all 24 oil seals, but that's it, so that's kinda cool. I ordered the 525 turbos, ARP head bolts and Cometic head gasket. I forgot to order the Noltec motro mounts, so I have to add that. With all of the gaskets, EGR valve and other random stuff I need to put it all back together, there goes another $3k. I'll get $500 of it back in core returns though. I won't be able to keep my paperweights. Z1 needs them back.
Thanks for the info on porting the heads.
Thanks for the info on porting the heads.
08-14-2005, 04:11 PM
#188
Registered User
Thread Starter
Join Date: Nov 2003
Location: Gerber, CA
Posts: 3,672
No, just the head bolts, turbos, MHG and a rebuilt power steering hose. I ordered the OEM stuff from Courtesy and there were a few things Z1 doesn't carry. I picked up the 300 degree master cylinder brace from Specialty Z and the NISMO pilot roller bearing from SGP. I also ordered a set of urethane lower control arm bushings from COZ.
08-19-2005, 07:42 AM
#193
Registered User
Join Date: Apr 2004
Location: Bum Fak SD right now...
Posts: 139
Originally Posted by 91zxtt
Have you seen people have problems with the MHG's? Robert @ Z1 hadn't heard of any problmes and they use MHG's all the time.
b-where'd you get your roller bearing from?
b-where'd you get your roller bearing from?
Last edited by Riz Z Speed; 08-19-2005 at 02:13 PM.
09-21-2005, 09:01 PM
#196
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Join Date: Nov 2003
Location: Gerber, CA
Posts: 3,672
Well, didn't get to it last weekend. Got stuck working on the house instead. i'll start again this weekend. I want to get the heads back on along with the intake and exhaust manifolds and the turbos.
