25Det Head On De?

[slyder1]

I recently bent the valves on my rb25de. After getting quotes seems its gonna cost more to get it rebuilt then just putting on a second hand head. my problem is i am having trouble finding many de heads. however there are loads of det heads around. so what work is needed to make the det head run like a de? on my p plates so just turboing it isn't an option. also is a de neo head basically the same as a normal de head or what work would that need?

what is cheapest option?

thanks heaps in advance

(i have searched but couldn't find any info)

[Captain Natro]

interested in this thread, my engines making some pretty nasty noises atm lol

[jhjones]

Neo head has smaller combustion cambers.

[slyder1]

yea thanks i already realised couldnt use neo but i cant see any reason why the det head wouldnt work? except for needing a tune... but still shouldnt because will be using de computer and everything

[mad082]

not sure if the head of the DET head runs lower compression (know it runs lower compression pistons). if it does then you will be down on power. plus you will need to use the NA cams.

another option would be to just buy a complete motor and bolt that in.

[JDM34]

Buy new RB25DE for around $1K, maybe not even that and then have it fitted into the engine bay. Become epic winrar. Also less screwing around involved.

Edited January 19, 2012 by JDM34

[MBS206]

Buy new RB25DE for around $1K, maybe not even that and then have it fitted into the engine bay. Become epic winrar. Also less screwing around involved.

A head change is much easier IMO to perform then a full engine swap... Had to do both a few times...

[slyder1]

A head change is much easier IMO to perform then a full engine swap... Had to do both a few times...

yea both options are seeming to have their ups and downs.. the head replacement is by far the cheapest but im worried once head is taken off will see damage to pistons.

im pretty sure also they use the same cams (de & det). from what i found the r33 rb25 is the only rb thats head doesnt change from turbo to non-turbo. but im still not 100% sure weather the det head is a viable replacement for my de head? im sure it will work. because i havent found anyone who has said no yet.

[StevenCJR31]

the cams between the two heads wouldnt be different enough to make a difference to the ecu . . .just buy a complete RB25DE from SSS for around $750 plus freight and you get a warranty and no mashed pistons!by the time you have messed around swapping heads ($ gaskets) this is the easiest/cheapest/quickest solution for you

[slyder1]

the cams between the two heads wouldnt be different enough to make a difference to the ecu . . .just buy a complete RB25DE from SSS for around $750 plus freight and you get a warranty and no mashed pistons!by the time you have messed around swapping heads ($ gaskets) this is the easiest/cheapest/quickest solution for you

well $750 isnt bad. where or what is sss??

[Miguelone]

I will have a complete auto series II 25DE available soon.

[Juz]

SSS Automotive Google it man, have had multiple dealings with them, nice blokes.

[MBS206]

A head only swap isn't cheap.

Buy head, 400-500.

Have head serviced and crack and presure tested 300-500

Gaskets 60-300 dependin if you buy just HG or the VRs kit.

So 760 at the cheapest in parts, plus you still need to do it.

Just depends on if you can actually do the spanner spinning yourself.

[Captain Natro]

I've just been sitting here at work contemplating about head swaps, if a turbo bottem end was purchased could one of my NA heads bolt straight up to it.

If so, would head porting and cams (assumeing the same duration and lift still works with a turbo effectivly)be used on an NA until the pull me over plates come off?

[Captain Natro]

and then the modded na head be bolted up to the turbo bottem end. is this an effective short cut or simply a waste of time and coin?

[StevenCJR31]

wait till your off your P plates and buy a (factory) turbo car . . . . easiest/cheapest/quickest way of doing things

[central coast person]

or bolt a turbo to your NA setup with some medium boost (12-14psi) and youre laughing......still its pretty expensive and if the engine is worn you going to have to re-build it anyway.