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Personally I'd like a drive in the car. I can remember when we fitted the larger fuel pump into my car and it richened up the AFR's (prior to the wolf3d going in) it made the car very sluggish. After fitting the wolf3d and adjusting the timing and afr the car was drastically different, at one point in the curve it made more than 100hp than before. I'm just wondering if the rich ecu tune would make the car sluggish as well, if the car is sluggish I would say its been tuned to be a dyno queen and not much else.

INASNT, quite possible, but for how long do you think?

Rob, are you for real? The dyno shows 180rwkw+ from around 110kph to 190kph and you want to suggest it may be sluggish and a dyno queen

What power does your car make from 110 to 190kph in 4th gear? think about it? how quickly does your car come on boost? I know trust turbos tend to hit pretty hard when they come on, but really, 90-180 in around 15kph - thats probably alot more than most tyres can control, I know my 255 revspecs cant handle that sort of punishment, and they arent cheap nasty tyres.

Here is a larger pic of the engine bay. Silicon bits are actually more blue. The exh manifold is from Tilbrooks. All valid replies on here. It only had the one tune on over 30deg day and yes I have AFR questions however it was done for safety. When cooler weather hits I will get another tune. I dont run that boost all the time however with 10% toluene 28 deg day the worst knock was 21. However seat of the pants it comes on hard with little lag and holds up to 7000rpm+. A mates car with a garett turbo making 250 at 17psi thinks it feels quicker than his. Yet to do some side by side stuff and get on the dyno at the same time. As I was lucky to get the car back for Christmas it probably could use some more dyno time particularly I want to do a run at 17psi and see where we are at. Has stock internals hope the larger injectors and Toluene for track/drag days hold it together if not rebuild time.

Yeh i dont think that car is going to go too badly :D:D ... it looks to have massive mid range and healthy top end, what more can you ask for.

As for RB25s croaking at higher power levels, has anyone had a well tuned modded car let go purely because of std parts strengths? The HPI R34 was throwing around some impressive numbers on a stock bottom end, plenty of SR20s, RB30s, FJ20s, Z18s, etc etc are known for their inherent bottom end strength.

Just curious if the RB25 is really that fragile compared to other Nissan engines...not sure just asking, have ppls probs come form trying to screw too much out of an RB25 on the cheap?

Roy the only prob with the rb25 is the pistons dont have the strength of the 26, the rods are the same and the crank is up to the task, they inly ever fail in the pistons maybe partly due to the higher comp ratio or a prob with the pistons, but is the tune is safe, as gregs was done and detonaqtion is avoided the engine should last a while.

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