[01integrase]

Probably more than you are running.

Making GT-R's and RB26's work , is what I do for a living , so I am not going to give everything I know away for free.

I have used the AEM on a lot of RB26's , its not the ECU its the tuner. I will say it again the football is beating the monkey.

How much do you want to help ?

The head is stock. Nothing has been touched or taken out. Local engine builders put it all together. He's planning on building this over the winter to make some more power.

quench pad? Care to explain what this does and how it could affect the performance if its still there?

To me, this should be running 400whp easy. Somethings not adding up. Having the only skyline around here and no one really having much knowledge isn't helping us out at all. Sean you seem to know a lot of motors, do you own a shop?

 

[tyndago]

With what?????????

2mm clearance:nervous:

Did it even run:lamer:

I guess it ran ok. Must have made a hell of a racket. When we got the car , the head was in the back seat , the turbos in the trunk. Most of the piping on the passenger seat. The head was ported to junk , and there were wrong shims in it.

450 rwhp before it came to RB Motoring to 653 rwhp after it went from RB Motoring . Same cams 272/10.2 , same turbos 2835's , 2568 cc .

 

[tyndago]

quench pad? Care to explain what this does and how it could affect the performance if its still there?

To me, this should be running 400whp easy. Somethings not adding up. Having the only skyline around here and no one really having much knowledge isn't helping us out at all. Sean you seem to know a lot of motors, do you own a shop?

I was just checking to see if you did anything crazy to the head. If you don't know what it is - dont worry about it. Just look it up on Google.

What brand dyno is this on ? Is there any correction ?

Can I see a copy of the dyno chart ?

Was the block decked ? Was the head decked ? Was actual timing checked to TDC on the piston ?

I mostly hang out at RB Motoring. I used to work at Motorex. I was the crew chief for the Automotive Forums R34 that ran in World Challenge in 2006.

If you send me the AEM configuration file , and a couple logs from runs I can look at it for you.

 

[tyndago]

As far as the head and cams go , and peoples rambling about not making power and making less power than stock. If the airflow is there , on a turbo car it is, you can make power.

I have done 654 rwhp , and run 137 mph in the quarter mile on a stock head, with stock cams. All you have to do is turn up the boost.

Mike from DSport magazine did about 700 whp on stock head and cams.

 

[tyndago]

Video - r32 gt40r skyline

Video - r32 gt40r skyline

Man that thing is weak. Throw another 10 degrees of timing at it everywhere , see what it does. You might be suprised.

 

[01integrase]

I was just checking to see if you did anything crazy to the head. If you don't know what it is - dont worry about it. Just look it up on Google.

What brand dyno is this on ? Is there any correction ?

Can I see a copy of the dyno chart ?

Was the block decked ? Was the head decked ? Was actual timing checked to TDC on the piston ?

I mostly hang out at RB Motoring. I used to work at Motorex. I was the crew chief for the Automotive Forums R34 that ran in World Challenge in 2006.

If you send me the AEM configuration file , and a couple logs from runs I can look at it for you.

I looked it up on google earlier today. Never knew about that. My only worries is if the engine builder knew about those or not. we rencently had a motor come in (honda motor) and two valves where really loose, to the point that it was about to fall off. I dont trust that they couldve checked everything on the motor prior to sending it back to the customer, especially when your talking about the shims on the cams.

The head and block was cleaned up. it wasnt decked (head or block) at all. They installed eagle h beam rods and wiseco pistons.

The cams are stock and are in stock spec as per the manuel.

I'll see if the tuner will let me send you the aem file or not. I can probably get a copy of the graph for sure.

Greatly appreciate the help your giving us.

 

[01integrase]

Man that thing is weak. Throw another 10 degrees of timing at it everywhere , see what it does. You might be suprised.

Thats what we've been saying. A pretty stock r32 was on the dyno pushing better numbers.

If i remember correctly, the last run that was dun, he was running 25 degrees of timing. adding 10 more degrees seems to be a lot. Is that safe?

 

[tyndago]

25 might not be much if its not all on 100%. Hook up the det cans , and keep throwing timing at it. The AEM has pretty good knock listening ability. Fairly aggressive knock retard if you set it up right.

Is your tuner using a boost compensated map or just straight map ? Probably not boost compensated , which is why you lost power on the other pulls.

Throw a couple more grounds at the motor too. The RB has horrible grounds.

 

[01integrase]

25 might not be much if its not all on 100%. Hook up the det cans , and keep throwing timing at it. The AEM has pretty good knock listening ability. Fairly aggressive knock retard if you set it up right.

Is your tuner using a boost compensated map or just straight map ? Probably not boost compensated , which is why you lost power on the other pulls.

Throw a couple more grounds at the motor too. The RB has horrible grounds.

Hey,

We got a few dyno graphs and the AEM file you where looking for. Do you want me to email them to you so you can take a peak and see if somethings wrong?

We attached 3 other grounds last week, thinking it could've been a ground problem.

 

[tyndago]

My email is in my signature.

tyndago@gmail.com


Send them over ,I should have time over the weekend to look at them.

 

[01integrase]

My email is in my signature.

tyndago@gmail.com


Send them over ,I should have time over the weekend to look at them.

Email is sent.

Thanks again. I hope theres something that jumps out right away.

Also, i thing i was told last night, that they had a hard timing matching the timing from the motor to the timing on the ecu. It would be off 5 degrees.

 

[kismetcapitan]

isn't there (or had been) a timing problem with the AEM and the CAS? maybe that's what's throwing things off so much.

 

[tyndago]

isn't there (or had been) a timing problem with the AEM and the CAS? maybe that's what's throwing things off so much.

I looked at the datalogs and the AEM cal file. It only has about 18 degrees of timing in it , and a couple other weird little things.

If they give it more timing , it will pickup 50-70 whp not a problem.

 

[01integrase]

Sean,

Just to give you an update. Threw more timing to it last night, bumped the power to 400whp and 300trq with a nice power curve (not choppy like the ones i sent you). Nothing else was touched, just timing. Theres more to come out of it, but thats big progress.

Hes running 30-32 degrees of timing. Is that too much? Its not knocking yet.

What other little weird things did the AEM show you?

He also picked up the HKS ignition module, but i dont think they'll install it since its not needed.


What else would it take to hit 500whp?

Again, Big thanks to you!

 

[01integrase]

By the way, it was hitting 400whp at 15 psi, not 22psi

 

[tyndago]

By the way, it was hitting 400whp at 15 psi, not 22psi

80 whp with 3 psi less boost , due to timing. As far as how much is too much , you need to put timing back into an RB after 7200 rpms or power drops off at the top.

I wouldn't consider 30 degrees at 15 psi too be too much. You need a little less at the torque peak, but ramp it back up after then.

As far as hitting 500 whp , try putting some more boost to it, with similar amounts of timing. Watch 5200 rpms or so for knock.

As far as other weird stuff I saw with AEM , there were a few things, knock control was not turned on or tuned for that motor.

You probably dont need the HKS DLI. I like the pimpy NGK 7436-(x) plugs. Expensive, but the best plugs I have run in an RB26.

Send me the new cal, and a new datalog run, I will tell you what I see. I actually forgot to look at it on my laptop yesterday, the timing thing just jumped out at me, and I knew that was a big issue.

 

[kismetcapitan]

18 degrees? oi, I'm at 14 degrees at full boost and load around 5-6K rpm.

 

[tyndago]

18 degrees? oi, I'm at 14 degrees at full boost and load around 5-6K rpm.

How much after then? Is your base timing right ? The Power FC does a little bit of weird stuff with timing. Doesn't give you complete control of it.

 

[01integrase]

Something odd.

The other night the AWD was hooked up. Worked fine, but we thought it felt pretty weak in power.

Couldnt figure it out, thought it was to do with the awd but when we watched the boost gauge, it would hit 9psi and stay there. Its suppose to be hitting 15psi. So with the boost cut at 20psi on the AEM, we took the vacuum line off the turbo housing and wastegate. This would boost really boost to 20 psi until boost cut. BUT it didnt! It stayed at 9psi.

any hints on what is causing it to stay at 9psi ? small vacuum leak somewheres?

 

[tyndago]

Something odd.e took the vacuum line off the turbo housing and wastegate. This would boost really boost to 20 psi until boost cut. BUT it didnt! It stayed at 9psi.

any hints on what is causing it to stay at 9psi ? small vacuum leak somewheres?

What brand exhaust manifold ? What brand wastegate ? What psi spring ?

If its a 9 psi spring , its going to do 9 psi. If you have an exhaust leak before the turbine, or on the wastegate , its going to make 9 psi.