Did a comp. test on a warm engine & now its running rough after start up & lacks power.
The ignition & fuel system was disconnected during the process.
All the cylinders were between 135-140 psi.
No excess coolant pressure.
Put in new spark plugs, re-checked timing (10 degrees...
Hi everyone, been a while since I last posted a thread.
I have a 7MGTE running a highflow (57 Trim) CT26, aftermarket ECU, using highest ocane fuel readily available.
Have a look at one of my spark plugs (NGK BKR7E) after giving it a blast to 6,000 & 20psi , the highest mappable setting on my...
Never really fully understood how different engine setups are tuned at various ramp rates.
Example: real world (on road) figures-
car A accelerates from 100-130km/h in 4 seconds in 4th gear (1:1)
car B accelerates from 100-130km/h in 6 seconds in 4th gear (1:1)
car A has a large...
Running a Microtech ECU on my 7MGTE & last dyno tune was mapped to 10psi.
Have since made slight changes to my intake & found that the old bov was leaking, hence the 10psi maximum.
Installed a new Bosch bov & now it sees 14psi.
My current psi, and fuel (ms), settings for load are:
2 4.38...
Recently I had a long discussion with a well know performance mechanic about the engine oil I am using.
7MGTE with around 4,000 km following a reconditioned bottom end.
Running standard boost through a high flow CT26.
I am using 5w30 synthetic oil & have been since around 2k.
When I told...
Can anyone think of any negative issues with disconnecting the auto cable, at the throttle body, during chassis dyno runs?
With o/d switched off & the cable loosened as far as the thread will allow it still wants to downshift to 2nd at anything under around 90 km/h.
Want to check the A/F...
After my last tune I checked the base timing and it was set at 5 degrees BTDC.
I dont know if this was done as a safety margin or was the result of calibrating the CPS.
When the engine is dead cold it idles a bit low & slightly rough until it warms up a bit.
From all the info that I have read...
Can someone let me know the Toyota part # for the 7mgte turbo gasket, ie the one b/w the turbo & the manifold, as my aftermarket pos is leaking.
thanks
What is the most amount of cam degrees that you have either retarded/advanced your camshafts?
I am currently running +2.5 (I) & +3.5 (E) on the BC264's.
Need to do another 300km before a proper tune is done but at the moment running around with these Microtech settings on 430cc injectors, 10 psi max boost & 4,880 rev cut:
IDLE:
Vacuum 0" 5" 10" 15" 20" 25" 30"
3.38 2.81 1.86 1.24 1.14...
Here is what my timing map is currently set at:
Idle 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
+17 +22 +27 +29 +29 +30 +30 +30 +31 +32 +32 +32 +30 +30
Maximum torque is around 4500, soft rev cut at 6500 & hard at 7000.
Auto 7mgte, CT26 57 trim...
My auto is playing up.
In D it only operates in overdrive gear, ie limp mode.
Manually selecting 1st & 2nd is fine as is reverse.
It does not throw any codes at all.
About two days before the problem I noticed my tacho was playing up, ie bouncing all over the place & generally showing more...
Does anyone have an idea of how much a stock 7mgte exhaust manifold is capable of flowing?
If ported properly what increase in airflow is possible?:naughty:
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