How Long Did Your De+t Last ?

[talky]

hey guys ! ince a lot of ppl on here a doing de+t .i was wondering has anyone popped there motor or is it all going sweet????/

if so howd it let go

wot was the cause

wot could you have done to prevent it

[N-DAWG]

I haven't seen any pop.

In my opinion, what would most likely kill the engine is:

- Not tuned properly resulting in detonation. eg. timing not adjusted correctly, not meeting the fuel requirements, too small injectors and/or fuel pump.

- Inadequate fluid cooling, in particular on the neo's. Dori and I have both discovered how hot the oil temps run on an RB25DE+t Neo. 90 degrees after a 15minute drive to work isn't uncommon, 100degrees after driving on the motorway also not uncommon and it's not quite summer yet. A 13 row oil cooler will help in this area. I should have my kit fitted this week or next and will report back on the results.

- Too high intake temps. A good FMIC will definitely help to reduce intake temps as with 10:1 compression you want to keep things cool.

- Too much boost. Mind you I've seen the likes of WYTSKY running 15PSI through an R33 GTS4 RB25DE, but don't expect a set up like that to be long-term reliable (in my opinion anyways), it's fine if you're looking to rebuild later on. I still think that unless the engine is already in poor shape, you'll probably reach the limits of a stock factory turbo before anything else.

- The driver/owner. Like any car, if you red line it day-in-day-out, don't maintain it, don't give it time before turning off the engine, etc.. you can't expect any car to last long.

Don't skimp on a good tune, have adequate cooling where it's needed most, drive it sensibly (driving it on 7PSI on a daily and having a high boost option for 10-12 isn't going to hurt THAT much now.. ok it does hurt but you get by ok with 7PSI for just commuting to and from work), maintain and service regularly and it should be fine.

Keep in mind that there are drifter's running RB25DE+t's as well. In my opinion, if it can handle the abuse on the track, albeit combined with good cooling solutions to match, then with the above taken into consideration there shouldn't be much of an issue.

If I didn't see it that way, I wouldn't have done the conversion.

[Mr Eps]

sup, top bloke.

i've got RB20de+T

been running for ummmmmmmmmmm

74+118 = ...dont know... not ven a relevant equation try again

118-74 - 44thousand klms

hasn't skipped a beat

there's no reason the engine would pop. it's a nissan, honda i can understand because they're not designed to have turbos added

nissan blocks already have the plumbing there ready to go to my knowledge, the only difference is that the compression of the head is higher. so the response is greater.

take that into consideration however. RESPONSE IS FAR GREATER.

so

response is greater.

do you NEED a massive front mount? no.

do you NEED 880cc injectors? no.

do you NEED a T88 with extenally gated boost gate manifold stainless gold HKS greddy frontpipe manifold turbo turbo kit? no.

in short - if you don't want your motor to go bang

then build the turbo with stock parts - once you've done that, and it works, THEN you can modify it... but my advice is don't go to nengun and ask for a extenally gated boost gate manifold stainless gold HKS greddy frontpipe manifold turbo turbo kit when you're not sure how the engine will handle having a extenally gated boost gate manifold stainless gold HKS greddy frontpipe manifold turbo turbo kit

ps

i was kidding about calling you a top bloke i just thoguht i'd throw it in there for shock value

but yeah

my advice is

do it right the first time, then build up modification parts... oh and DONT LOSE ANYTHING. TAKE NOTES OF EVERYTHING YOU DO. KEEP YOUR NUTS N BOLTS IN THE ONE PLACE. LABEL THEM IF YOU HAVE TO.

[DaGr81]

Mines almost 3 years and going strong man, although I still wish I did a full engine transplant when I had the chance. I'm making 210rwkw - 220rwkw depending on dyno and weather.

[dori34]

you craving for more power now arent ya DaGr81?

i definitely am.

getting my ebc tuned for 14psi in 2 weeks,

see how the injectors & afm go and if theyre near maxing, i might upgrade to 550cc & run a map sensor.

[4 door love]

mine lasted a track day and about 500kms normal driving.

reason why it broke: idle tension bearing snapped. that is all.

[WYTSKY]

2 years and going strong! BIGGGG upgrade commencing in only a few days/week...

I'll show u Nathan, that all our blocks can take that PSI that being said... I don't think ive touched red-line for atleast a month or more... maybe the secret i don't know....honestly i don't need to go over 5,000 on the street...

Can't wait for the new gear to be put in...

[N-DAWG]

I'm waiting in anticipation to see what you've got coming! I still think your nuts Any hints on what you've got in store?

You're right about that... since doing my conversion I don't feel the need to rev it out as much anymore for street driving.

I don't doubt that the DE blocks can take the pressure.. it's more a case of how reliable and for how long it can, but yours is living proof that they can take some pretty big boost without giving up the ghost.

[dori34]

good oil, service regularly & god damn good tune is the key.

adam, i am keen also to see whats coming next for ya you crazy bastard.

u still using the 3071?

[bozodos]

I've seen a couple of RB30E + T still going strong a couple of years later, pinging is the main issue due to higher compression of course.

[WYTSKY]

good oil, service regularly & god damn good tune is the key.

adam, i am keen also to see whats coming next for ya you crazy bastard.

u still using the 3071?

its a little bigger then that

Im waiting on a single part that is being custom made by a machinist to suit

[666DAN]

~60,000kms+ and it's still out there as far as I know....Sydney way

[DaGr81]

Dori34 yeah I'm sick of the power but I canT/won't push it any further because im selling up shortly.

But if the guy in this thread wants more power I'd go to Lewis engines for their rb30 package.

[dori34]

yeah ive been eyeing their motors DaGr81 and its pretty good for that price too!

i pumped thru 14.5 psi as i was testing my EBC yesterday and boy it was quick!

no traction on 18x10" work rims on 2nd and 3rd which shocked me so i backed off immediately lol

[lammy426]

3 years 315rwhp no probs and going higher when i get the time

[WYTSKY]

yeah ive been eyeing their motors DaGr81 and its pretty good for that price too!

i pumped thru 14.5 psi as i was testing my EBC yesterday and boy it was quick!

no traction on 18x10" work rims on 2nd and 3rd which shocked me so i backed off immediately lol

hehehehe... and this is how mine ended up staying at 15-17psi