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25de+t head on 26det block

darkoh69
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darkoh69 Apprentice

darkoh69

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25de+t head on 26det block

I got an r32 gts recently. its a bit of a Frankenstein project in that its running an RB25de+t head(08U) on a RB26det block(05U). A gtr ecu untuned Im assuming, & gtr injectors. When I first got it, it was running real rough & would only start aided with engine start. I couldnt find a resistor pack in the loom so I peeled it open & found that someone has wired 10w10ohm resistors inline on each injector. So I got an OEM gtr resistor pack & wired it into the loom now it starts like it should but its still running rough. It idles fine & slowly rides off in first ok but as soon as I give it a bit more gas it coughs & misses. Im just looking for some advice/input/interest in this thing to keep me motivated on getting it running right.  

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https://www.sau.com.au/forums/topic/470001-25det-head-on-26det-block/
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jmknights93 Mentor

jmknights93

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I'd suggest taking your car to a tuner.

Certainly sounds like a mess. I can't see anyone diagnosing something like this online without viewing the car.

25de+t head doesn't make sense to me, It'd be just a normal non turbo head correct?

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kingtube69 Experienced

kingtube69

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On 4/13/2017 at 1:36 PM, jmknights93 said:

I'd suggest taking your car to a tuner.

Certainly sounds like a mess. I can't see anyone diagnosing something like this online without viewing the car.

25de+t head doesn't make sense to me, It'd be just a normal non turbo head correct?

I agree with jmknights92 - I would also invest in a wideband too, check what those AFRs are doing. 

darkoh69 Apprentice

darkoh69

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On 4/13/2017 at 3:36 PM, jmknights93 said:

I'd suggest taking your car to a tuner.

Certainly sounds like a mess. I can't see anyone diagnosing something like this online without viewing the car.

25de+t head doesn't make sense to me, It'd be just a normal non turbo head correct?

Yeah 08U series 0 rb25 i think

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