Blown Motor, Engine Rebuild/Replacement.
 

Sorry guys but it seems my thread my closed due to being off topic. I have yet to read any thread on this forum that actually stays on topic but hey rules are rules. And I am guessing it was too much PR on gtm since they are a paid sponser here.

I am planning on trying to work out a deal on this other motor tomorrow and will try to keep everyone posted because I will need feedback and opinions on my future options so lets please try and stay on topic. (SPOHN)
:icon18:

i mentioned in your other thread, but if you (or anyone else) is looking for a short block to build, I have one available.

If u stay stock block it's fine you're just leaving potential for more power on the table.
Honestly if u don't have or know a good shop then stay stock. Safest bet is stock.

Hey Cosmogirl. I tried sending you a PM but it says your box is full.

I got the contact information for the guys who built my heads and block. If you want that info I'll relay it your way.

As long as you're content around the 500 whp level with a good tune, most people don't seem to be having any issues at all with the stock block.

i just had my new tune cuz of new 3" exhaust at Vinny Ten Racing in NY last sat and i'm putting out 518hp/ 407 tq and i'm auto @ 10psi.. Old setup with stillen exhaust netted me around 485hp and that was for 5 months. This is on stock block with GTM TT stage 2

With those with built engines, who did the build for you? Anyone happen to know any good shops in California who can tackle an engine build?

Cosmo, are you still sticking with the stock block? Or are you going to build it after you get it? Or haven't decided yet?

To be honest I really don't know yet.

Cosmo, you know I've got no issues with you, but I'm really confused as to why the fact your motor let go is a GTM issue. By your own admission, you had a broken or improperly set up boost controller and inadvertantly ran 20+psi on your stock block. You didn't get the boost controller from GTM, so where is their responsibility?

I've got my own issues with the way they run their business, but this one seems like it squarely falls under the category of "not their problem".

As far as your motor, you should throw the replacement block in as-is. Build your busted block over time. Buy a set of pistons, rods and bearings yourself and find a good local machine shop. Have everything balanced with the clutch and flywheel on. Throw it back in with some more fuel, turn up the boost and aim for 600whp. Personally, I wouldn't even touch the heads. There's too much VVEL black magic going on in there for me to feel comfortable having a shop take it apart, work on the heads and put everything back together correctly.

Sent you a pm..

Picking up a engine hoist tomorrow off of craigslist, trying to find a engine stand now. Somehow I feel I am making progress... lol

Ok so who knows how the a/c lines disconnect or is there an easy disconnect on the 370z? When I did the motor on my 350z I had to take it somewhere to have the line redone is the only reason I ask...

If you're still working on it this evening I can take a look. There's got to be an easy way to take them off.

6 Piece Fuel Line and A/C Quick Disconnect Tool

Line Disconnect Tool | AutoZone.com

http://www.the370z.com/diy-section-d...t-intakes.html

This is basically what I did, but if you're tearing apart the engine and shooting for 600whp and reliability lets actually be realistic about the parts list:

ARP main studs
ARP L19 head studs
K1 Rods
Wiseco pistons
OEM bearings, Calico coated (theres no aftermarket available)
Cosworth headgaskets
engine gasket set
rear main seal (doesn't come with the gasket set for some reason)
timing chain/tensioners
water pump
oil pump
pickup tube

Recommended (especially if you want to beat on the car in the summer):
Re-routing the turbo coolant lines (GTM chains the coolant lines together so the driver turbo is cooled with the water exiting the passenger turbo)
Upgraded radiator (mishimoto works great)
2012+ coolant expansion tank
2012+ coolant hard pipe (expansion tank returns to this pipe now, above the driver side manifold)
Ceramic coating for manifolds, turbine housings, downpipes
Bracing the driver side manifold (the GTM driver side manifold has a tendency to crack along the runner due to stress from supporting the turbo)

I would also highly recommend a set of Z1 motor and transmission mounts and a whiteline poly diff bushing to actually put all of this power to the road.

I like that Avatar man...:tup:

:iagree:

Just wanted to say thanks for all of the useful information today on the phone. I hope others will use this thread as a tool if and when it may be needed down the road. Pictures will be posted as soon as I get a replacement block. :tup:

Well today was a good day, I have a few more options on the table. One being a long block out of a g37 with only 10k miles. I contacted s&r out of tampa to build it but he couldn't find pistons in a 10.1 compression. I worry that a 9.1 comp will make it laggy... Any thoughts. Keep in mind Iam looking boosting around 16psi.

I would have CP custom make you pistons in 10:1. I tried to organize a group buy for this a few months back, but almost nobody was ready for that yet. I was planning to reintroduce it in December or January to see if anyone was ready. If theres enough guys ready to go right now, I can set it up.. the pricing was really good if we could get 7 guys. 5 more after you and I :) I had a thread about it: http://www.the370z.com/group-buys/73...mp-10-1-a.html

10:1 is the lowest I would personally go.

My engine builder here in San Antonio runs a performance shop and is also a Certified Master Infiniti Technician. He HIGHLY recommends using CP Pistons for his GTR or VQ builds. He told me to go with a standard bore 10:1 or 9:5.1. I chose the latter. I asked him why not .20 oversized, he told me that he has built hundreds of blocks while at Infiniti and there was not one that needed to go with overbore pistons. He also mentioned of how thin the VQ sleeves already were in stock form. My 9:5.1 pistons are custom made from CP and purchased through Kyle at IPP. If SA, Texas isn't too far from you, I highly recommend my builder.

The thing is with standard bore piston, is that you dont always get control over your piston to wall clearance. Last time I ever tried a stock bore piston, it was 2004 or 2005 and a customer dropped off his 350z with some pistons he already purchased. Turned out they were already smaller than the recommended piston to wall clearance. We tried it anyway and it sounded like a diesel truck. I was so bothered by it that I refused to give the car back like that, and I rebuilt the engine again out of pocket and sent the pistons out for ceramic coating. This added enough size that we were able to set the piston to wall clearance proper. Problem solved. Car still runs to this day but I will personally never chance it with standard bore pistons again.

phunk Iam in on those pistons. Do we have enough people to do it or what?

It looks like it. Tomorrow I will try and get it all arranged with CP along with attempting to get an accurate ETA to their construction. Then I will post back to that thread and confirm with everyone interested. We should be able to sort it out within a couple days.

Please let me know asap so I can get those pistons down to s&r for my build...

I will let you know what they say. I believe its generally 6-8 weeks for custom pistons though... so if you are in an immediate rush it might not pan out quickly enough

I thought the 9.0:1 CR pistons from Wiseco would be 'soft'. Not at all. Impressively powered low and midrange. The VVEL has so much influence that the CR was a non factor.

My input.

Coop

Contacted s&r and spoke with bobby about those 10.1 cp pistons. He's going to call cp to see how long it would take them to make them along with a price. I may have to pass on the group buy depending on the time frame. Will keep everyone updated..

Nice research so far , following this everyday ,
Sorry you had this issue bu Bobby at S&R is AWSOME

The time frame will work out the same.

I will know in about 45 minutes where we are at.

You had me at Pistons!!!!!

Just got off the phone with bobby at S&r and he talked to the guys at CP. They told him they could make me the pistons 10.1 for $1000 and if more were interested that it would be less money. Phunk I am not trying to step on your toes here but trying to get me motor up asap. He is supposed to be calling me back since I told him 3 others were interested on a price for 4 of us.

my set of wiseco 10:1 cost about 650 through Z1, but I did warn you s&r's build price sounded high. these are also the guys who told you that 10:1 "didn't exist"

Ya sounds messy, I would just let me handle it... its only going to get confusing having 2 group buys for the same exact part.

That's fine with me. I will just have him hold off on the build and have you ship my pistons to s&r? Besides it is cheaper and every little bit helps.. Thanks again phunk. Can send the money anytime, just shoot me your pp address.

Cheers to all and hope everyone has a Great Thanksgiving, :tup:
Harry

cosmo I just updated the GB thread... pricing has unfortunately changed. Its still less than your quote, but sucks, I really liked the last price. If I get the order in next week, they said it will take 4-5 weeks to make the pistons. So lets see if everyone else is still on board, and if so I can place the order.

esforteen Whats a ball
park cost to build a motor like that?

What was the wait time on the wiseco 10:1 pistons because I may go that route if I can get them right away. If the wait time is the same as cp I will go with cp..

4-6 weeks, something along those lines

Should have some updates today...