pk951

That is some nice HP for a 26/8. Yes he is very close to a stage-3, but we have to remember the heat comming out of that turbo is very high, much higher than the stage-3. Were the stage-3 is not heating up the charge as much that makes a big difference on a track car or somebody doing de's. I would perfer a little bigger turbo to be more in the efficiency range.

toddk911

True!

But $300 is wayyyyy better than $3,000

pk951

Good point.

AlexE

........ Great chart Russell.......

But I have been lurking on the list long enough........ that chips and 16 psi on a stock 26/8....... do not equate to these numbers.

A 26/8 pushing close to 20 psi with a proper tune is seen at ~280 hp/350 lbft on an extremely good day.......... and at that point most are trying to bring down the heat via water injection etc. No matter how much fuel you throw in there to cool things down.......

I can see 18-20 psi with an extremely aggresive timing curve hitting those numbers......... But 16 psi???

Andial951

Well its a little known fact that 951MAx also sells the following which needs to be sprinkled on the chips before installing.....

rberry951

So you don't believe me, Dave Lindsey, or the charts? I don't have a problem with that, keep lurking, charts will keep rolling in...

rberry951

I do NOT have a moustache anymore!

95Juan

oh dammit...........now i need a new wastegate and a 26/8

gotta find some way to beat roger!

lart951

There is no boost log in that chart , it will be nice to see the boost curve as well. 302whp & 345wtq @ 16psi from a k26-8 is hard to swallow. I am not flaming either but I have tried several turbo combinations at different boost levels with differents chips and also a piggy back and those numbers fit between the 18-20psi range for a k26-8. In order to achieve those numbers @ 16psi in a 2.5l engine, you will need excellent compression (like new)the leakdown under 2% in all cylinders and lots of tuning. If you have the boost log or a video of the boost gauge while on the dyno it will help a lot.

rberry951

I understand this, and I'm not offended at all. But the chart is what it is, and the facts are the facts. No one has anything to gain by fudging numbers. As more and more people with the chips do dynos, you'll see more and more charts like this.

toddk911

Not if:

A. the 16 psi is being held to redline
B. proper tuning to allow enough fuel/timing to make power and still cool the charge from the heat.

C. that 4" exhaust might make a lot more difference than people think.

Duke

Good numbers, seems a bit too high though.

People need to remember one thing and that is that there is nothing magical about chips.
Yes it takes lots of testing to come up with the best possible values but there is nothing that magically can release like 30 horses without changing boost if the previous chips weren't horrible to begin with.

To get maximum peak numbers on a full throttle run you can only do so much as make the timing as agressive as possible (read: as close to detonition as possible) with good fuel ratios.

Drivability and tuning to be able to run high boost etc. is a whole different thing. But at a certain boost level, on a certain configuration. Chips alone won't change peak numbers with +/- 10-20 %.

BTW I develop and sell chips in the Nordic countries so I do know what I'm talking about..

Andial951

Thats what I'm thinking.............sigh......add that to my list of things needed.

rberry951

I forgot to mention that part, the boos fell off to 13 at redline. Dave just confirmed that the sensors were shot and replaced them. Next week he says weather/time permitting he'll get back to the dyno and do some more runs, at different boost pressures. He also tells me they tried a 20psi run but the car just kept coughing and popping because of the sensors getting worse and worse so on the 20psi run they only made 302hp/365tq at the wheels. Again, more charts will follow. I'll mention to him to get a full chart showing boost, and A/F as well when he goes back. Will probably print one chart out in time too because he keeps telling me that when he pulls the charts in time vs RPM it amazes him how quickly the car revs.

Regards,
Russell

Brian Morris

345 tq @ 3800 RPM = 20 psi

See this thread - the first run at 20 psi and the last run at "16" psi, have almost identical torque around 4K.

http://forums.maxhpkit.com/viewtopic...f08ffd805f5726

--Brian Morris
89 951