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Discussion Starter #1 (Edited)
What happens if my modified R35 engine/gearbox blows up?

:)wavey:THIS IS A HYPOTHETICAL SITUATION!:wavey:)

So, I've taken the plunge, and plugged my Cobb AP in, giving me 570hp, fantastic fun until one day I'm driving along and the gearbox/engine/transmission (delete as applicable) blows up. As expected Nissan HPC confirm diagnosis, but politely proceed to tear up my warranty and then direct me towards the door...

From a brief scan of the web, a replacement would be:

engine - £33k+vat
gearbox - £11k+vat

(correct me if I'm wrong)

my question is: would a foocked engine/gearbox etc be repairable by some of our esteemed independents (i.e. GTC, SVM, CPR, Litchfields etc), and how much would it cost? Obviously this would depend on what exactly had gone wrong/broken, but then could people suggest what would be the most likely things to go wrong/break? I'm no engineer (could you guess?), so would value people's opinions and suggestions. We are talking "worst case scenarios" here. :thumbsup:
 

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If it is so risky tuning an R35 a little bit,with a risk of invalidating a warranty,then why bother?
Either buy the car standard and keep it that way,if your worried about it.
Or buy it,tune it and then deal with,ie PAY for any problems you've encountered.
 

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an engine maybe 33K but its not like the whole engine will disappear from under your bonnet, so I guess a worst case scenario would be a melted piston or something like that which I wouldn't of thought would be 33K to replace.

personally I think if you have concerns just keep the car standard and enjoy it for what it is, that's what I'm doing, even though I have now got used to the power and have found myself thinking I could do with a bit more LOL!

the more I think about it these cars are so powerful you simply can't use the power they have in standard form 99% of the time, you simply don't have enough room, open it up on a motorway and your talking a prison sentence after 10 seconds or so!

i'm not knocking anybody that has modded as I have modded every previous car I have owned, just this one I am determined to keep standard!
 

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Interesting post there fella!! Think it says it all that it's hypothetic as you will find relatively few threads where GTR's suffer catastrophic failures, but I'll indulge you on this one.....worst case for an engine would be damage to the block there by requiring a completely new engine the most likely cause of this would be if the rod's bend (the bit connecting the piston to the crank) has been known to happen to a handful of cars worldwide but only with relatively high boost levels and I'd imagine your ok with standard stage w power or equivalent, there are of course many other things that could go wrong with the engine but for the vast majority it would only result in the replacement of some components unless your unlucky and something gets sucked into the cylinder but again relatively low likely hood

Right onto the gearbox....probably the weakest link in the GTR setup but still relatively sturdy, in many cases it's software malfunctions that cause issues or minor mechanical gremlins....there have been cases of the cir clips that hold the gear sets in place giving way but I believe this is more an issue for early models and high torque applications, the stock clutches appear to be quite reliable up to 600lb/ft which is a huge slug of torque by any measure, as with anything abuse will increase likely hood of failure and personally if I was running a tune I would limit the amount of launches as shock loading is what causes the real issues on any gearbox.

On the whole despite early scaremongering the GTR is a solid platform...keep it regularly serviced (milage wise anyway as time intervals aren't really relevant unless you go beyond 12mth engine / 24mth gearbox.) at the end of the day to suffer either complete failure would be unlikely and even a HPC will be able to fix singular component failure albeit more costly then a independent but the likely hood of leaving 33k or even 11k with a HPC is low.....enjoy the power and put up a nice review for everyone to enjoy
 

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SVM can fix engine and gearbox issues for a FRACTION of the normal replacement cost even by other Independent garages.
 

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Way to go posting misleading thread titles... :rolleyes:

Do you have any idea how off-putting a thread title like that looks on a forum like this?

If you're scared, keep it standard. And don't post stupid thread titles like that.
 

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Way to go posting misleading thread titles... :rolleyes:

Do you have any idea how off-putting a thread title like that looks on a forum like this?

If you're scared, keep it standard. And don't post stupid thread titles like that.
When I saw the title I was like "oh no not another one" now search on google R35 engine blown, it links you to this one :chairshot
 

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Discussion Starter #15
What's with the defensiveness? The thread title is, deliberately, attention grabbing, the content is marked clearly as hypothetical. And, so what if a google search ends up here, if anyone read the thread they would see that it is an imagined situation.

This is a question a lot of owners, pondering tuning, would like answered.
And it's not about being "scared", it's about making an informed decision. What is wrong with that?

Chill out people!

Andybrew and bobel, thanks for your thoughts. :thumbsup:
 

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This thread has a stupid title, however, it does carry a sincere concern that must be shared by people who tune their cars and want to know what happens if things go wrong.

The sticky about the engine change program is even more ridiculous if you ask me.
 

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The briefest of searches would have given all the answers the OP would have wanted.
The titles is deliberately misleading, if he wanted to ask a sensible question it would have been along the lines of "IF my engine/gearbox were to break when tuned..." etc.

The question has been asked and answered almost more than any other on here FFS...
 

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Way to go posting misleading thread titles... :rolleyes:

Do you have any idea how off-putting a thread title like that looks on a forum like this?

If you're scared, keep it standard. And don't post stupid thread titles like that.
For once david - we agree !! I would go so fa as to say T*sser for posting such a thread, but then that's me speaking my mind !
 
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