VWDiesel.net The IDI, TDI, and mTDI source.
Engine Specific Info and Questions => IDI Engine => Topic started by: RabbitJockey on June 01, 2009, 02:13:35 pm
-
i already asked him about his setup, its an na pump with 12mm head no lda, and the governor mod, mercedes nozzles, intercooler, and a nissan blue bird turbo garett of some kind. 3.5" exhaust
http://www.youtube.com/watch?v=gqvB9xU4lQQ&feature=email
-
Wow, must be hitting some intense boost pressures. that's really clear exhaust.
-
he should probably switch back to the stock TD nozzles. they are definitely big enough. is this guy hooked up to this forum yet???!!! anyone with a fast vw IDI should be on here :)
-
Especially a Caddy! Where is blkboostedtruck?!?!
-
Is that smoke due to off boost overfuelling from the non LDA pump?
Seen the vid before, don't recognise the truck or username from the caddy forum.
-
I highly doubt that figure with a 1.6.
-
whyīs that?
i made almost 140 with stock k24 at 2 bar and 9mm head.
only fuel,big i.c. and pressure...
-
I take it these are not at the wheels figures?
-
At the end of the video is says something about 59kw. That's about 80 horsepower. Where did the 163 Horsepower figure come from?
-
At the end of the video is says something about 59kw. That's about 80 horsepower. Where did the 163 Horsepower figure come from?
Itīs legally inspected as 80hp, "offroad" settings are 163hp at crank :)
-
I highly doubt that figure with a 1.6.
Dave (935racer) made a 1.6 w/ a 1.9 head and a huuuuuge turbo and got 193hp :o, I don't think that was at the wheels though.
-
Lots of 160-270hp (crank) 1,6:s. No need to doubt this ::)
-
Lots of 160-270hp (crank) 1,6:s. No need to doubt this ::)
Holy crap yeah batman. Read the builds that the finish guys are building... jesus... 270???
-
Horsepower must be computed differently in Finland. ::)
-
Horsepower must be computed differently in Finland. ::)
Yeh, iīve been thinking same. I and my friends have some modded Mopars here. These are dynoed in same dynos that those diesels. Same builds dynoed here, have so much less power than dynoed in us. For example, Challenger 440 Sixpack, ran 12,6/110mph @ 1/4mile. Drove straight to dyno => 335whp. 30 minutes earlier, My Audi 1,6TD with mild setup 151whp (173hp crank) And what Iīve read from Mopar Magazines and Forums, that kind of 440īs have 450hp in us ::)
Klick (http://i659.photobucket.com/albums/uu319/done/2004kw404nm.jpg?t=1244197445), this is 1,6TD not far from here.
-
unless i'm missing something that graph shows bugger all go to 3500rpm and then everything over a 5000rpm - that can't be nice to drive daily can it?
-
MJF, could you let us know some of the things they are doing to make this kind of HP? Besides the usual HP building things such as large exhausts, large turbos, large intercoolers, I'm particularly interested in things like compression ratios, thermal coatings, machining, etc. Are they using stock pistons? How do they keep the swirl chambers from melting? What kind of reliability do they have? Is this stuff just good for 12 seconds at a time, or could they sustain this kind of power for a couple of minutes? I'd really like to know because I'm going to be doing a performance build in my 2.0 TD 5-cyl and I'm looking for ideas. Thanks.
-
MJF, could you let us know some of the things they are doing to make this kind of HP? Besides the usual HP building things such as large exhausts, large turbos, large intercoolers, I'm particularly interested in things like compression ratios, thermal coatings, machining, etc. Are they using stock pistons? How do they keep the swirl chambers from melting? What kind of reliability do they have? Is this stuff just good for 12 seconds at a time, or could they sustain this kind of power for a couple of minutes? I'd really like to know because I'm going to be doing a performance build in my 2.0 TD 5-cyl and I'm looking for ideas. Thanks.
For 150-180hp, theres nothing unusual. Good pump is must, thatīs where the power comes. I drove ~40kkm with my 180hp Audi. Cracked head a couple times, but it had strange overheating problem that had nothing to do with high hpīs. Other than that, no problems. After that, body rusted away and it was scrapped. Engine moved to my Scirocco and was built again. Scirocco had zero overheating problems (220hp) from earlier Audi-build, could be floored as long as needed. Heat is your enemy, watch coolant temperature, exhaust temperature and exhaust manifold pressures closely.
That 270hp Golf have stock pistons, h-profile rods, main girdle, ported 1,9 head and HX35. Nothing too special in there that I know.
Aki-76 knows better of thermal coatings, I havenīt tried those.
-
what do you know about their pump?
-
For 150-180hp, theres nothing unusual. Good pump is must, thatīs where the power comes. I drove ~40kkm with my 180hp Audi. Cracked head a couple times, but it had strange overheating problem that had nothing to do with high hpīs. Other than that, no problems. After that, body rusted away and it was scrapped. Engine moved to my Scirocco and was built again. Scirocco had zero overheating problems (220hp) from earlier Audi-build, could be floored as long as needed. Heat is your enemy, watch coolant temperature, exhaust temperature and exhaust manifold pressures closely.
That 270hp Golf have stock pistons, h-profile rods, main girdle, ported 1,9 head and HX35. Nothing too special in there that I know.
Aki-76 knows better of thermal coatings, I havenīt tried those.
Excellent, thanks for the info.
-
what do you know about their pump?
Talked to the owner of the 270-hp 1.6, he has a 1.6 pump with a 11 mm head, modified governor and LDA.
The turbo is huge, and it makes the power possible along with a well-built pump and cyl. head, but it's basically only good for drag racing ( so he says ) because the power band is so narrow.
About credibility - it can be difficult to believe these numbers - but it's all 100% true, and the dynos that have been used are conservative even. Why, 1.9 TDIs have been made to produce 400 hp, and they don't rev as high. 270 hp on a 1.6 diesel isn't really all that revolutionary, remember that turbo F1 cars used to have 5 times that much on their similarily-sized gas engines. Five times!
You can make huge power on any engine if you know what you're doing, but that's just numbers.
Ideally you want an engine that has a good power and torque curve, even if the top end suffers a little - unless you're on a drag strip every time you drive the car, that is.
In my humble opinion though, anything over 240 hp or so on a 1.6 will not be very street-diveable.
That kind of power will require such turbos that will spool up very late and slowly, and that's why these are racing-only machines mostly. But turbo technology is again going forwards these days...
-
yeah it makes sense really, thinking back on daves car he was out of fuel at 195hp or so on a 9mm pump, and he had a very ported head, if he had a bigger pump i really wonder what he could have done, especially with a giles built and tuned pump. not to mention he did 195hp at a very high rpm (nearly 6k)and these other guys are doing it much lower
-
In my humble opinion though, anything over 240 hp or so on a 1.6 will not be very street-diveable.
That kind of power will require such turbos that will spool up very late and slowly, and that's why these are racing-only machines mostly. But turbo technology is again going forwards these days...
drive it like you stole it ;D
-
this is TurboJ ceramic coated sylinderhead
http://s434.photobucket.com/albums/qq68/Aki-76/asiakas%20osia%20ja%20muuta/?action=view¤t=13042009353.jpg
My own twin turbo piston
http://s434.photobucket.com/albums/qq68/Aki-76/moottorin%20osia/?action=view¤t=12042009344.jpg
( not polished yet )
and intake valve
http://s434.photobucket.com/albums/qq68/Aki-76/moottorin%20osia/?action=view¤t=13042009348.jpg
Right is polished.
Now i drive my new daily car test drive,and itīs ceramic coated head,valves,precombust chamber and exhaust port,exhaust is 3 layer cermic and turbo is also 3 layer coated.Fuel economy is fantastic.horsepower is also good ;)
-
can we get numbers for your fuel economy?
-
We'll have to wait a while to get a full average on a 1000 km distance, but:
When Aki still had the stock 9mm pump, he drove a 400 km trip and the fuel gauge only went down 1/4....
Yes I know that's not really scientific, but it does show that economy improved noticeably compared to the stock engine. Aki also reports that even at highway speeds, you barely have to touch the gas pedal because of how willingly the engine pulls... Good flowing head and the ceramic coating, and a good turbo - that has to count, and if efficiency didn't go up with those mods then that'd be a surprise anyway!
-
We'll have to wait a while to get a full average on a 1000 km distance, but:
When Aki still had the stock 9mm pump, he drove a 400 km trip and the fuel gauge only went down 1/4....
Yes I know that's not really scientific, but it does show that economy improved noticeably compared to the stock engine. Aki also reports that even at highway speeds, you barely have to touch the gas pedal because of how willingly the engine pulls... Good flowing head and the ceramic coating, and a good turbo - that has to count, and if efficiency didn't go up with those mods then that'd be a surprise anyway!
so were the swirl chambers coated??? i recall reading that it negatively affected performance.
-
Yes they were.
How would that negatively affect anything?
It should be better if more of the energy was kept inside of the chamber and not let escape by transferring heat onto the casting around. Of course, I'm no expert, but controlling that heat transfer should only be good, right?
-
yes and no, its that transfer that "lights up" the mixture of turbulent air and diesel
but if the prechambers get too hot, the aluminum in the head might not like it
that's why I thought on using Renault prechambers on my 1.9 head frankenengine
(http://naotefiques.no.sapo.pt/precham2.jpg)
(http://naotefiques.no.sapo.pt/DSC01793.JPG)
(http://naotefiques.no.sapo.pt/DSC01794.JPG)
(http://naotefiques.no.sapo.pt/DSC01795.JPG)
-
Yeah,my daily car is fully coated precombust chamber
http://s434.photobucket.com/albums/qq68/Aki-76/moottorin%20osia/?action=view¤t=13042009349.jpg
This photo is my twin turbo engine head but daily car head is similar.Engine cold star is fantastic,sound is little rude,but few second itīs smooth softly.I donīt see any problem this.
heat transfer is quite interesting,because almost all heat come in air which crush precombust camber.
Now i use "big core" pump with 12mm head,and fuel economy is about 4.5-4.6l / 100km,
orginal 9mm pump economy is 4-4.1l/100km.
Engine produce about 140hv,with orginal intake,orginal exhaust,NO intercooler,boost is 1.4 bar.Next week i install intercooler and,well,maybe we see resultīs in here.
This dyno sheet is orginal parts,just head/turbo modification
http://i434.photobucket.com/albums/qq68/Aki-76/asiakas%20osia%20ja%20muuta/kyttiksendynolappu001.jpg
-
over hear in UK we are years behind you guys. i have no idea what half of you guys write about but it all semmes good (and mad). I've tried without success to find a tuner over hear that will touch my SB code diesel and they just ask where do they plug there lap top in to 'chip' it!!
only 'chip' in my car is the fat in the fueltank!!
-
I know what you mean. Although I know a few people who can help me out when I want to start tuning it up. It's staying stock for now though ;)
-
over hear in UK we are years behind you guys. i have no idea what half of you guys write about but it all semmes good (and mad). I've tried without success to find a tuner over hear that will touch my SB code diesel and they just ask where do they plug there lap top in to 'chip' it!!
Oi less of it. ;) There are some very switched on sootheads over here,
We just don't tend to throw silly money at our builds as the diesel is still an economical choice, and the motors so cheap that they are disposable.
-
over hear in UK we are years behind you guys. i have no idea what half of you guys write about but it all semmes good (and mad). I've tried without success to find a tuner over hear that will touch my SB code diesel and they just ask where do they plug there lap top in to 'chip' it!!
Oi less of it. ;) There are some very switched on sootheads over here,
We just don't tend to throw silly money at our builds as the diesel is still an economical choice, and the motors so cheap that they are disposable.
I like that word, "Sootheads", I'm gona use it tomorrow and see if they know what I'm talking about. I use the word "Dieselfreak" alot myself ;D
-
I am very interested in this, I am looking for replacement Swirl chambers to use in my build, will these be better for performance? I am also interested because I need some, mine are cracked to hell. Those of us on this side of the pond would have no problem with you throwing those engines away in our direction ;D
yes and no, its that transfer that "lights up" the mixture of turbulent air and diesel
but if the prechambers get too hot, the aluminum in the head might not like it
that's why I thought on using Renault prechambers on my 1.9 head frankenengine
(http://naotefiques.no.sapo.pt/precham2.jpg)
(http://naotefiques.no.sapo.pt/DSC01793.JPG)
(http://naotefiques.no.sapo.pt/DSC01794.JPG)
(http://naotefiques.no.sapo.pt/DSC01795.JPG)