Jump to content
SAU Community

Recommended Posts

hey all. just want any advice on what im about to do r32 gtst rb20 timing belt snaped and broke 2 pistons bent 19 valves and snapped 5 valves with guide damage aswell. everyone would say new engine but im not keen on that because the head just cost me 5g worth of porting and custom parts and had alot more work just done car hadent even done 100km before the brand new belt snapped which killed everything head is fixxable and i dont want to waste that money so now thinking bottom end rebuild and stroke to 2.4l which will bring my boost on early since i have a gt3540which on the dyno about half an hour before it snapped made 280rwkw on 18psi. i want to bring it on earltier then 5grand revs and boost it up to about 22 and hope make between 330 and 350 kw

Edited by brassil
Link to comment
https://www.sau.com.au/forums/topic/222515-destroyed-engine/
Share on other sites

the head work was port and polished with oversized valves custom springs and custom cams. the porting was huge about asbig as we could go safely.

and obviously new lifters stem seals and valve guides to suite.

Unfortunately you can now throw most of that out, if the cams and springs are any good, they will fit srtaight into a 25 head, just disable the vct. A top notch port job shount be more than 1k

at the moment im still waiting from a engineer report it was a defect in the belt from manu facture so they will only pay to have that engine fixed which i will pay the differance for the stroker put in. the head is already getting fixed just got to sort out the warranty for the block but they r goin to fight it and i dont know who to speak to about it.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I'll just reiterate that it's best to do all the wiring diagnostics, before even thinking about buying replacement solenoids ~ that is, be absolutely sure the solenoid is bad.....ie; bad connector(s), rodents chewed through a wire, etc etc. If you don't so this, you can fork out all the money for solenoids, only to find something else is wrong (this'll make you cry if you pull the valvebody only to find a broken wire is at fault... ...some more glue on the solenoid packs -- this is the RE5R01A shift solenoid assembly.... ...these are all shift solenoids ~ ostensibly they're the same as the shift solenoids from the 4-speed auto.... ...this is the RE4R01A solenoid set... ...with these, you have 3 shift solenoids attached to the plate, and the separate solenoid is the EPC solenoid (line pressure control) -- with both designs, the TC lockup clutch solenoid (also PWM so they could slide the clutch shut), is located on the lower valvebody half.... ...(story time)...back in the 90's, it was a common fault that the EPC solenoid (or TC-lock solenoid) would fail, but Nissan only sold them as part of the assembly (think ~$350 at the time) ~ thing was, Isuzu also used these boxes in light commercials, and you could buy the PWM solenoid as a separate part, so it was possible to buy/use that solenoid (around $65), and make it fit (remove the circlip, fit to old plate and deal with wiring)...making it a more cost effective repair. I've not seen the RE5R01A shift solenoid assembly, but with the 4-speed RE4R01A it was possible to hack/fit a single shift solenoid onto an other working set, using a donor solenoid from another set with failed EPC....(by rights the whole set should be replaced), but it ends up being a question of how much life is left in the box itself ; sometimes it's a viable repair to fix one solenoid, just to get another 100k of road miles out of it before it needs first overhaul...other times the box is that old/worn, you're as well doing first overhaul and replacing the solenoids and starting fresh... What Nissan did here with the 5-speed, was relocate the EPC solenoid to the lower valvebody (next to the TC lockup solenoid), and stuck the direct-drive clutch solenoid (for the extra gear) where the EPC solenoid used to be on the 4-speed....I can only imagine they did this for serviceability ; the PWM solenoids are most likely to fail, and it's a doddle to drop the pan and change these out (as opposed to dropping the valvebody itself to get at a top mounted EPC)... ...also keep in mind, that some BMW 3/5 series & Mazda (and maybe some Ford/Mazda rebadges, not sure), also used the RE5R01A box under a different name/part number...not saying parts availability is any better, but sometimes it helps to know this when it comes to NOS floating about in the EU.... HTH  
    • FWIW, air jacks are actually pretty light and simple to add, they are just 4 hydraulic cylinders (often at the main cage A and C pillar points) and an externally accessible airline  - they make quick work a breeze
    • Maximum Attack has entered the chat
    • That is porn and I wish I could do it easily on my streeter.
    • Yes there is a front and back insertion point on each side, each point is tubed with supports into the car and tied to the cage/ floor mount point
  • Create New...