Diplodicus
New Member
The first thread on this was back in 2021, so here is an overdue update.
Living without the turbo has been a breeze, the thing has never needed more power than is available now that it is normally aspirated. The sender for the exhaust gas temperature gauge is right up close to the exhaust port, (about 1.5 inches) so it is in the “flame zone” of No 3 cylinder. The highest temperature I’ve seen since I did the conversion is 480 degrees C. Poddling along on the level at 50 mph creates an EGT of 210 degrees C and prolonged tickover creates an EGT of 95 degrees C.
My previous mpg with the turbo fitted while using the truck to do its normal job (95% road, 5% hauling stuff around on the smallholding) was 31 mpg. Doing the same job without the turbo takes the long-term average up to 44 mpg.
I removed the oil and intercoolers with all their plumbing and the oil has been fine. The truck is noisier with the home-made 4-into-2-into-1 stainless exhaust and the four individual K&N filters on their individual intake stubs, but the engine is now very free-breathing so I don’t give a monkey's.
There is no engine management to cause problems, no ABS, no airbags, no driver modes, hill assist or any of the other malarky just waiting to fail and make my day go south.
The truck will have its latest MOT on the 27th and the tester will find zero rust anywhere, as usual. This engine has done 120k but has a lot more in it now it is so much less stressed.
Best thing I ever did.
The original YouTube I did while I was doing the body welding is still up. If anyone hasn’t seen it and can be arsed to watch it, it is here. The first part showing how bad the body was is a bit long, but be patient.
In the YouTube search box, type TEGRAROTOR
An enjoyable and worthwhile project and still in everyday use. The jig still exists (minus the outer frame triangular ends,) and I’ve also re-purposed the hydraulic drive that I made.
Happy spannering, people.
Living without the turbo has been a breeze, the thing has never needed more power than is available now that it is normally aspirated. The sender for the exhaust gas temperature gauge is right up close to the exhaust port, (about 1.5 inches) so it is in the “flame zone” of No 3 cylinder. The highest temperature I’ve seen since I did the conversion is 480 degrees C. Poddling along on the level at 50 mph creates an EGT of 210 degrees C and prolonged tickover creates an EGT of 95 degrees C.
My previous mpg with the turbo fitted while using the truck to do its normal job (95% road, 5% hauling stuff around on the smallholding) was 31 mpg. Doing the same job without the turbo takes the long-term average up to 44 mpg.
I removed the oil and intercoolers with all their plumbing and the oil has been fine. The truck is noisier with the home-made 4-into-2-into-1 stainless exhaust and the four individual K&N filters on their individual intake stubs, but the engine is now very free-breathing so I don’t give a monkey's.
There is no engine management to cause problems, no ABS, no airbags, no driver modes, hill assist or any of the other malarky just waiting to fail and make my day go south.
The truck will have its latest MOT on the 27th and the tester will find zero rust anywhere, as usual. This engine has done 120k but has a lot more in it now it is so much less stressed.
Best thing I ever did.
The original YouTube I did while I was doing the body welding is still up. If anyone hasn’t seen it and can be arsed to watch it, it is here. The first part showing how bad the body was is a bit long, but be patient.
In the YouTube search box, type TEGRAROTOR
An enjoyable and worthwhile project and still in everyday use. The jig still exists (minus the outer frame triangular ends,) and I’ve also re-purposed the hydraulic drive that I made.
Happy spannering, people.
Last edited: