Post by: phaetonv10 on July 03, 2017, 12:29:52 am
As the subject says, these are the basic specs on my SB turbo diesel.
My question, is 25 psi too much for the stock internals??
I hope my conrods won't start bending anytime soon??
Sent from my ONEPLUS A3000 using Tapatalk
Post by: deepgrooves74 on July 03, 2017, 07:56:51 am
There are guys on here that push their motors further... I built mine to the same specs as you. Plan is to run 20ish pounds of boost in my motor, but I also plummed in an AWIC.
Make sure to add an EGT sensor so you can keep track of the heat. That will be your biggest enemy.
I built my motor based on what the guys here are doing successfully. I haven't had the chance to run that motor yet. Hopefully within the next couple of weeks I will be finally putting the motor in to the car, and see if what I did is reliable. I had Giles build my injectors and pump to push the motor to 6k with 30' of boost.
The first thing that will go with your motor will probably be your head gasket before your connecting rods. I only speak from what I've read not from experience.
Sent from my iPhone using Tapatalk Pro
Post by: phaetonv10 on July 03, 2017, 09:11:38 am
I also have an EGT gauge. And oil temp. Along with boost of course.
Haven't really been able to do a prolonged run while monitoring these things. Since my CV boots are busted. The requisite parts are on the way. From US to Pakistan.
Additionally I'm also changing the thermostat to 80deg unit, and fan switch to 85deg unit. Because I feel that the stock 87deg thermostat and the 95deg fan switch are not exactly ideal for the Pakistan heat.
I've also changed the fan to an AAZ unit. With the 1st and 3 speed wired up. For more efficient cooling.
Sent from my ONEPLUS A3000 using Tapatalk
Post by: RunninWild on July 03, 2017, 01:20:25 pm
Post by: phaetonv10 on July 03, 2017, 01:26:28 pm
Pump is stock, with gov mod, two copper washers..
And the turbo was recently rebuilt by gpopshop. They asked me if I wanted an OEM rebuild costing $390 or HAD rebuild, costing $510. I chose HD. So, I'm hoping it'll hold on at 25psi
Sent from my ONEPLUS A3000 using Tapatalk
Post by: libbydiesel on July 03, 2017, 01:35:24 pm
Post by: phaetonv10 on July 04, 2017, 04:02:28 am
I assume your EGT probe is pre-turbine. Regardless, 1400°F sustained will kill your engine fairly quickly. Cause of death will likely be a prechamber insert cracking and falling into the cylinder or cracks from exhaust valves to prechambers. If your probe is post turbine, then your EGTs are waaayyy too high. 25 psi is very inefficient for the K14. If you are running that much boost, IMO, it is the wrong turbo to use.The EGT probe is pre turbine. In the manifold where all four chambers meet before entering turbo.
So as far as I understand, I should reduce boost and fueling so max EGT is 650-700deg C?!?!?
Sent from my ONEPLUS A3000 using Tapatalk
Post by: libbydiesel on July 04, 2017, 07:11:27 pm
Post by: kljaja on July 05, 2017, 07:10:07 am
Post by: Dubdoc on July 13, 2017, 03:22:12 pm
Post by: phaetonv10 on July 14, 2017, 04:04:55 am
It was making a weird sound for the last couple of days. Yesterday I removed IC hose and it was spitting oil like a bastard.
Considering changing turbo to T3.
Or going TDI. Will be writing to gpopshop too.
It last a 600km since rebuild.
Sent from my ONEPLUS A3000 using Tapatalk
Post by: RabbitJockey on July 14, 2017, 03:21:30 pm
Post by: RabbitJockey on July 14, 2017, 03:30:49 pm
Post by: phaetonv10 on July 15, 2017, 12:17:00 am
also you have a good engine i wouldn't go through all the cost and work of swapping to a tdi unless if the engine is dead. Swap to a t3 or he200wg. t3 will be the easiest and cheapest, he200wg will be the best but still priced quite well. Also hello to you in pakistan, i have a friend who lives in rawalpindi.Hello rabbit jockey.
Does your friend have a name??
If he owns a golf, then I might know him.
Sent from my ONEPLUS A3000 using Tapatalk
Post by: RabbitJockey on July 15, 2017, 12:51:13 pm
Post by: phaetonv10 on September 21, 2017, 07:56:17 am
Now running a T2 Garrett. SB turbo as it has the water cooling bit too.
Running a moderate 12psi boost.
What is a safe bet on a T2, 15-16psi?
And one more question with regards to the way my engine revs.
When I floor it, even when standing still, the rev counter goes to 4200 rpm smoothly, then at 4200rpm, there's a slight pause, or the rate of increase of rpm slows down for half a second. Then it starts to rev again upto 5000+rpm.
Why is there a slight hiccup?
Any ideas?
I'm assuming it has something to do with fueling.
Sent from my ONEPLUS A3000 using Tapatalk
Post by: phaetonv10 on September 25, 2017, 04:37:48 am
Sent from my ONEPLUS A3000 using Tapatalk
Post by: RabbitJockey on September 25, 2017, 07:46:22 am
Post by: phaetonv10 on March 03, 2018, 05:14:12 am
If you reduce both fuel and air (boost) proportionately, your EGTs will not change. You need to reduce fuel and/or increase air to lower EGTs. I think 1250°F (675°C) sustained is a good target.Hi guys.
When you say 675 deg Celsius sustained, how long is sustained?? 30 seconds?? 1 minute?? 1 second??
Like when I drive on the highway, the max I've been able to achieve is 146kmph while controlling pedal to ensure EGTs remain under 700C.
Please advise.
Sent from my BBB100-1 using Tapatalk
Post by: libbydiesel on March 03, 2018, 10:44:43 am
Post by: RabbitJockey on March 05, 2018, 08:16:36 am
Post by: phaetonv10 on March 23, 2018, 11:51:47 am
Now the sitrep is as follows.
Max boost is 11psi. But my car is not as fast as it should be at the top end. The max speed I've been able to do is 156kmph. If I had a long enough straight, it would've touched 160 but nothing like some of the videos I've seen on YouTube.
Sent from my BBB100-1 using Tapatalk