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09-27-2018, 05:26 PM
Replies: 72
Views: 27,485
Posted By 427

Itís been sittings in NC since I moved, (about a...

Itís been sittings in NC since I moved, (about a year) my kid crashed it 6 days before we moved into Texas!...
09-27-2018, 08:50 AM
Replies: 72
Views: 27,485
Posted By 427

Eric, Iíve had a few different converters...

Eric,
Iíve had a few different converters over the years, but none have been great. When towing it will sometimes slip the converter when I use a higher stallspeed converter. The higher stalls use...
06-20-2018, 07:31 AM
Replies: 155
Views: 47,411
Posted By 427

Not sure, but likely would sell whole engine at...

Not sure, but likely would sell whole engine at premium price.
05-31-2018, 07:33 AM
Replies: 155
Views: 47,411
Posted By 427

It was High Output Technology in NC.

It was High Output Technology in NC.
05-30-2018, 07:59 PM
Replies: 155
Views: 47,411
Posted By 427

That project was abandoned at my last job, itís...

That project was abandoned at my last job, itís in storage now:(
10-17-2016, 07:38 AM
Replies: 419
Views: 175,764
Posted By 427

With that sensor location you likely are reading...

With that sensor location you likely are reading the pipe problem. Sounds like you answered why people use 2.5 tubing!

Kurt
10-16-2016, 07:18 PM
Replies: 419
Views: 175,764
Posted By 427

Did it need more fuel at higher RPM? If you are...

Did it need more fuel at higher RPM?
If you are measuring BP near the turbo you can only read restriction past the sensor, the turbo and exhaust system past the turbo. If those did not change and it...
10-07-2016, 06:57 AM
Replies: 123
Views: 9,694
Posted By 427

The FP logs would easily alert you of problems, I...

The FP logs would easily alert you of problems, I was just thinking about what could cause your lean problem that required adding fuel in the base map that was not the controller/sensors. Still...
10-07-2016, 06:30 AM
Replies: 123
Views: 9,694
Posted By 427

The lifters I've seen with problems were GM type...

The lifters I've seen with problems were GM type that are bought in bulk. The problem car would only do it in high load, they kept chasing coils/wires thinking it was ignition. The one difference is...
10-06-2016, 07:05 AM
Replies: 123
Views: 9,694
Posted By 427

More power fixes everything!!! I wonder if your...

More power fixes everything!!!
I wonder if your lifters are having trouble at high rpm. They don't normally start having trouble out of the blue, but I did see a problem car this summer that would...
10-03-2016, 10:34 AM
Replies: 123
Views: 9,694
Posted By 427

I would swap in a different engine controller if...

I would swap in a different engine controller if you can as that weird calibration change is alarming. Swapping your box into another car running same system might tell you something also.
If the...
10-03-2016, 08:17 AM
Replies: 123
Views: 9,694
Posted By 427

I agree, but it might be tough reaching 6000+ in...

I agree, but it might be tough reaching 6000+ in high gear without the high boost. When you drive a turbo out of it's happy place enough to lose performance you are normally in high load with flow...
10-03-2016, 06:38 AM
Replies: 123
Views: 9,694
Posted By 427

You are slowly fixing all the little things,...

You are slowly fixing all the little things, bound to find the right one soon. Does anybody local have larger capacity turbo you can try? What engine control are you using?

Kurt
09-30-2016, 03:12 PM
Replies: 123
Views: 9,694
Posted By 427

The Pac number will work perfect! I would check...

The Pac number will work perfect! I would check that, it should take .045 without issue. Next time you need springs I would step up the open pressure #400+. I use PAC 1207X or 1221X on hollow...
09-30-2016, 02:25 PM
Replies: 123
Views: 9,694
Posted By 427

If you can crush a spring cautiously in a vice...

If you can crush a spring cautiously in a vice and get the stack number, that will allow the math for shimming them right. take that number plus .050 plus lift and that will be set up number. So if...
09-30-2016, 12:05 PM
Replies: 123
Views: 9,694
Posted By 427

150 on the street is bad, but I've done it a few...

150 on the street is bad, but I've done it a few times!
You need to measure it while it's apart so you can fix it right someday. Do you have calipers at your shop?

Kurt
09-30-2016, 10:37 AM
Replies: 123
Views: 9,694
Posted By 427

Would not change BP as both sides of valve have...

Would not change BP as both sides of valve have near same pressure as it just closed. If you need to race it as is put the taller tires on or change rear gear as slowing the rpm will help with both...
09-30-2016, 08:23 AM
Replies: 123
Views: 9,694
Posted By 427

It's not likely lofting that causes your problem...

It's not likely lofting that causes your problem if it's control related, your probably bouncing the exhaust valve off the seat. That will not cause traditional misfire, it causes weird overlap added...
09-28-2016, 05:09 PM
Replies: 419
Views: 175,764
Posted By 427

So that makes clear which turbo limited engine...

So that makes clear which turbo limited engine would choke first, although that does not prove it's your only problem. The over fueling makes it sound like valves bouncing on the seat, but only...
09-28-2016, 01:53 PM
Replies: 419
Views: 175,764
Posted By 427

The cam specs will be what makes a turbo drive...

The cam specs will be what makes a turbo drive over itself in matching combo's. Cylinder head flow will change boost pressure/power, but hp is connected to turbo on these smaller types generally. If...
09-28-2016, 06:43 AM
Replies: 123
Views: 9,694
Posted By 427

I would guess it will be very close to 1.8 now,...

I would guess it will be very close to 1.8 now, but I would look at your springs stack number before buying shims as the .060 might fit better. If you have calipers you can do a simple test for...
09-27-2016, 06:42 AM
Replies: 123
Views: 9,694
Posted By 427

Nothing changes the set up but shims under the...

Nothing changes the set up but shims under the springs. If you get this right the open pressure should be around 400 with seat between 150-170, this should keep the valve in control near 7000rpm with...
09-26-2016, 06:00 PM
Replies: 123
Views: 9,694
Posted By 427

If you put them in without shims they are low on...

If you put them in without shims they are low on spring pressure, not sure if this will hurt you now. When you buy springs for .660 lift, but only have .610 lift you will never get to the open...
09-26-2016, 04:26 PM
Replies: 123
Views: 9,694
Posted By 427

I would guess it's turbo limit, but check spark....

I would guess it's turbo limit, but check spark. The springs are wrong style, are they set up short?

Kurt
08-31-2016, 09:22 AM
Replies: 22
Views: 3,321
Posted By 427

I always question everything I see until I...

I always question everything I see until I understand the science also, it helps with mechanical things for me. The science of whats happening is the best part, it dictates where gains can be found....
Showing results 1 to 25 of 488
 


 
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