First ride on the Td8
- Thread starter francois
- Start date
Did you have issues with the sled? If so, what were they and how did you fix them?
F
francois
Member
straight answer yes.
BUT most of the issues were because I bought a used kit.
All started with me installing the attitude box witht he gen 3 install instructions instead of the 3.25 instructions. Backfires non stop, could have blown the engine on that day.
Call Silber about 25 times (he must be so sick of seeing my number when I call, poor him, dealing with a french guy from the flatlands) trying to figure out why it was laways creating 8-10psi even with the boost controller closed and why it was backfiring all the time.
All the issues were solved when I installed the attitude box properly lol!
or almost..Started the sled once it was properly installed and could not get it to rev or I would loose all voltage. Silber thought it was the??(I don't remember the name) so hook the extra wires, that I had install to test the oil pump, to my gmc sierra to see if it was really the problem but no. My firend and I decided it was just because I was running 0 boost and the clutches were putting to much load on the engine so turn the boost up and problem solve (for the over boost, I figure because it was backfiring all the time it created sort of a back pressure that would make the boost gauge reads 10psi ish because as soon as it stoped backfiring the boost was ok)!!
Finally made my way to the field to test the beast. It ran almost flawless at about 500' elev. except for the fact that the pro rmk 163 was WAY ahead of me at 5 pounds of boost. Obviously my clutches were and are still wrong as the sled works just as good as a normal 800cc lol.
That beeing said, I have only good things to say about Silber. He answered all of my phone calls, emails, sms (and believe me there were tons!!). I realized clutching is a ongoing thing so Im not too worried.
for tuning, the box is pretty simple, the numbers are pretty much all dialed in now but I think I am still a bit too rich as it sometimes det. (straight AvGas at 0 to 3000'). I do have an issue at midrange, about half-throttle where the afr reads lean at all time. That kind of worried me as a guy from my area blew off his engine this weekend because of that(aerocharger tho).
Now from the roll, no problem. Turbo did not move, no leaks from the oil tank and sled fired right out when I got back tot he bottom of the hill. I still don't know why it ****ed up ont he first climb of the day, was workign perfectly seconds before on the flat and like crap when I started climbing...Did not redo it during the day, probably it was just too rich and det cause i went wot for a longer time.
BUT most of the issues were because I bought a used kit.
All started with me installing the attitude box witht he gen 3 install instructions instead of the 3.25 instructions. Backfires non stop, could have blown the engine on that day.
Call Silber about 25 times (he must be so sick of seeing my number when I call, poor him, dealing with a french guy from the flatlands) trying to figure out why it was laways creating 8-10psi even with the boost controller closed and why it was backfiring all the time.
All the issues were solved when I installed the attitude box properly lol!
or almost..Started the sled once it was properly installed and could not get it to rev or I would loose all voltage. Silber thought it was the??(I don't remember the name) so hook the extra wires, that I had install to test the oil pump, to my gmc sierra to see if it was really the problem but no. My firend and I decided it was just because I was running 0 boost and the clutches were putting to much load on the engine so turn the boost up and problem solve (for the over boost, I figure because it was backfiring all the time it created sort of a back pressure that would make the boost gauge reads 10psi ish because as soon as it stoped backfiring the boost was ok)!!Finally made my way to the field to test the beast. It ran almost flawless at about 500' elev. except for the fact that the pro rmk 163 was WAY ahead of me at 5 pounds of boost. Obviously my clutches were and are still wrong as the sled works just as good as a normal 800cc lol.
That beeing said, I have only good things to say about Silber. He answered all of my phone calls, emails, sms (and believe me there were tons!!). I realized clutching is a ongoing thing so Im not too worried.
for tuning, the box is pretty simple, the numbers are pretty much all dialed in now but I think I am still a bit too rich as it sometimes det. (straight AvGas at 0 to 3000'). I do have an issue at midrange, about half-throttle where the afr reads lean at all time. That kind of worried me as a guy from my area blew off his engine this weekend because of that(aerocharger tho).
Now from the roll, no problem. Turbo did not move, no leaks from the oil tank and sled fired right out when I got back tot he bottom of the hill. I still don't know why it ****ed up ont he first climb of the day, was workign perfectly seconds before on the flat and like crap when I started climbing...Did not redo it during the day, probably it was just too rich and det cause i went wot for a longer time.
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T
theshadowrider
Well-known member
So what was the problems with the injection on the climb before the roll? Man, sounds like a headache!
Keep us posted on the midrange lean issue. Glad you got the wiring all figured out. I will be running my sled at 1k feet elevation as well so I would be interested to hear your take on the clutching and fuel controller numbers.
F
francois
Member
I have a clutching from a guy on the site IQ?, I will try it as soon as I can get the parts (take for ever here in canada). He is from sweden and also ride sealevel.
he uses: primary spring: 175-260 titanium spring( a/c sno pro)
71g weights
secondary spring: 180-260
helix: 48 or 50 straight
The problem before the climb was probably too much gaz at WOT which created a series of misfires. I had to let the throttle go loosing at the same time the momentum.
and its not that much of a headache lol, i would just like to be higher so that I can use the experience most of the guys on this site have!
he uses: primary spring: 175-260 titanium spring( a/c sno pro)
71g weights
secondary spring: 180-260
helix: 48 or 50 straight
The problem before the climb was probably too much gaz at WOT which created a series of misfires. I had to let the throttle go loosing at the same time the momentum.
and its not that much of a headache lol, i would just like to be higher so that I can use the experience most of the guys on this site have!
Francios, are you thinking about running a low comp head...since youre riding at sealevel?
I will be running my TD8 at sealevel too, but my biggest concern is DET...the sled has an low comp head so hope to run premium pump gas since AV gas is not esy to get and race gas is approx 60USD per gallon
I will be running my TD8 at sealevel too, but my biggest concern is DET...the sled has an low comp head so hope to run premium pump gas since AV gas is not esy to get and race gas is approx 60USD per gallon
F
francois
Member
I thought about it for a long time and almost bought one but knowing that the head who came with the recall last year was lower compression I decided to try it this way with straight avgas.
Im looking to ride at 7-8psi, Silber told me I should be good to maybe 10psi.
Keep in mind that we are mostly boondocking around here so by lowering the compressoin I was loosing on ''snap'' and I was not ready to do that.
Next year tho I may very well give it a try as Avgas turned out to be more expensive than expected so the lowcomp head would get pay back within about a month lol 1200psi on this site is selling a good low comp head I heard and really quick on answering questions.
Im really trying to build a solid experience in riding a 2 stroke turbo at sealevel so I will be updating my results quite often hoping some of oyu will do the same...
Also,keep your eyes open, Supraturbo on this site is currently working on a completely autotunable fuel controller that will help us SO MUCH while hopefully beeing cheaper than a pc5 with autotune. Talk to him this morning and he said it will be coming very soon especially since his dragon died last weekend because of a lean spot! He was kind of frustrated and sick of all this tuning lol!
Im looking to ride at 7-8psi, Silber told me I should be good to maybe 10psi.
Keep in mind that we are mostly boondocking around here so by lowering the compressoin I was loosing on ''snap'' and I was not ready to do that.
Next year tho I may very well give it a try as Avgas turned out to be more expensive than expected so the lowcomp head would get pay back within about a month lol 1200psi on this site is selling a good low comp head I heard and really quick on answering questions.
Im really trying to build a solid experience in riding a 2 stroke turbo at sealevel so I will be updating my results quite often hoping some of oyu will do the same...
Also,keep your eyes open, Supraturbo on this site is currently working on a completely autotunable fuel controller that will help us SO MUCH while hopefully beeing cheaper than a pc5 with autotune. Talk to him this morning and he said it will be coming very soon especially since his dragon died last weekend because of a lean spot! He was kind of frustrated and sick of all this tuning lol!
turbo tuning
I have an 08 800 BD PG turboed dragan. I think setting up your turbo at sea level with any amount of boost will be tricky. How low of boost can you go. I am guessing that you are probably running lean, causing the det sensor to kick in at sea level on boost. I think you better run lots of race gas to protect the engine. Check your plugs, piston wash and watch your egt's closely. Or invest in a o2 gauge. With my sled with the boost turned all the way down it still sputters abit. It clears up around 2500 - 3000 ft. I can not get it to clear up at low elevation.
I have an 08 800 BD PG turboed dragan. I think setting up your turbo at sea level with any amount of boost will be tricky. How low of boost can you go. I am guessing that you are probably running lean, causing the det sensor to kick in at sea level on boost. I think you better run lots of race gas to protect the engine. Check your plugs, piston wash and watch your egt's closely. Or invest in a o2 gauge. With my sled with the boost turned all the way down it still sputters abit. It clears up around 2500 - 3000 ft. I can not get it to clear up at low elevation.
i am running a BD RG turbo at 0-4000. 2010 head and pistons.straight av gas. boost peaks at 13.4 so far. no det problems. running 8300 rpm with 10-76 weights.
I thought about it for a long time and almost bought one but knowing that the head who came with the recall last year was lower compression I decided to try it this way with straight avgas.
Im looking to ride at 7-8psi, Silber told me I should be good to maybe 10psi.
Keep in mind that we are mostly boondocking around here so by lowering the compressoin I was loosing on ''snap'' and I was not ready to do that.
Next year tho I may very well give it a try as Avgas turned out to be more expensive than expected so the lowcomp head would get pay back within about a month lol 1200psi on this site is selling a good low comp head I heard and really quick on answering questions.
Im really trying to build a solid experience in riding a 2 stroke turbo at sealevel so I will be updating my results quite often hoping some of oyu will do the same...
Also,keep your eyes open, Supraturbo on this site is currently working on a completely autotunable fuel controller that will help us SO MUCH while hopefully beeing cheaper than a pc5 with autotune. Talk to him this morning and he said it will be coming very soon especially since his dragon died last weekend because of a lean spot! He was kind of frustrated and sick of all this tuning lol!
Most of our riding is boondocking too, so hope the low comp head wont mess up my low end totally....but time will show how it works out.
Will definitely keep my eyes open for peoples experience with turbos at sea level, and that new autotunable controller sounds interesting.
Have been told to give up even trying by some of the older sledders around here which has messed with 2-stroke turbos before....carbed ones though.
Keep the updates coming!
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