New turbos, new thread.
http://i495.photobucket.com/albums/r...ps4f81927d.jpg
More to come.....
Jeff
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New turbos, new thread.
http://i495.photobucket.com/albums/r...ps4f81927d.jpg
More to come.....
Jeff
I take it your timeline didn't match up with rebuilding the other ones? Will be nice to see a 1:1 comparison like this.
These are DR750R's with a 12* clip. They are guaranteed to make some powa!!!!!
They will be equipped with these.
http://i495.photobucket.com/albums/r...psf26ebc6f.jpg
21 psi wg actuator springs:icon23:
OoOoo! Subbed.
I like the red wastegate springs. :cool:
-John
Same turbos. I made a special request to Matt and he made it happen. They were EXPENSIVE but, I have been wanting to go this route for a while.Quote:
Originally Posted by Forest Gump
I believe the others would have made 700 on the dyno as these surely will but, they just never got a second chance.
More goodies.
New crankshaft as the old one isn't as straight as it used to be.
http://i495.photobucket.com/albums/r...psf489b77c.jpg
New OE flywheel as per Ray's recommendation.
http://i495.photobucket.com/albums/r...psde5fed2f.jpg
Main studs to hold the bottom from falling out.
http://i495.photobucket.com/albums/r...psc6f14e68.jpg
More powa capabilty in the form of new bumpsticks from Crower. The mild 264's.
http://i495.photobucket.com/albums/r...ps1c2fb78c.jpg
New oil cooler as I feel it is a must after a catastrophie like I had a few months ago.
http://i495.photobucket.com/albums/r...psc974b7f4.jpg
didn't notice you were running stock cams before. this one should make 700 easily and probably be easier on the motor.
I have new turbo oil feeds and returns and the engine rebuild kit is here along with new OE headbolts. There are a bunch of other goodies coming but these are the items I have so far.
The new crankshaft will have a new home to go in as I believe I scored the last virgin 6G72 bare block in existance via the fantastic service from Mike over at Cherry Hill. The old block hasn't been condemned yet but, once my finances get a little better I will ship it off to Ray for checking/line boring or final condemnation. There were issues I saw that weren't to my liking and after many conversations with Ray, this is my best option.
Everything is on hold right now because the rods are not currently available. I'll update more when I have more to tell.
Jeff
Damn I don't think I knew about the engine letting loose. Look forward to watching this thread.
In on 1st page of epic build...
Can't wait to see the results!
Interesting indeed.
Subbed
OK, more epic-ness to be had here. I will stay for a bit!
This will be fun
Clipping should show some serious gains as it'll allow more exhaust flow thru the already tiny hot side of the turbo.
Subbing for another new td04 record. Clipping?....but lag!:D
Anybody have inducer/exducer sizing on the 750 comp and exhaust wheels? Curious on how they compare on size to my turbos.
Lag is a shift away from fun.Quote:
Originally Posted by familyMAN
IIRC Matt was discussing them one time in a thread on 3si and I'm pretty sure he said they were 2mm larger than the 19T compressor. 51mm is sticking in my head for some reason.
The turbine should be the same as the HL.
Jeff
No such thing as lag on a TD04. :pQuote:
Originally Posted by familyMAN
Also imagine this would help tremendously with the surge.
Man why didn't I have this idea before... The clipping helped a lot with the DR500s...
In case anyone didn't get my sarcasm...lag comment was a joke:DQuote:
Originally Posted by kywhitelightning
With an extra 2mm they would be closer to 59-60mm on exducer. From stealth 316, 19ts are almost exactly the same size inducer/exducer on comp wheel as my 14bs. 2mm more would put them around small 16g size on exducer but bigger on the inducer if the 750's are larger than 19t.
Not that it matters. Just curious. I don't think there is anyway I could get 700whp out of my turbos (without some giggle juice) and wanted to see how far off on sizing I am.
Subscribing. I was thinking the same thing with the surge. I would rather have a laggy turbo than surge. I hope you are getting all of these parts shipped to your work address so the better half doesn't find out:)
Sub'd
Sent from my GT-I9300 using Tapatalk
I have to do some digging through my subscriptions on 3SI but, I did save it for that reason as he rarely talks about sizing.Quote:
Originally Posted by familyMAN
LMFAO. She knows about all the parts as she see's the pile growing. She is just unaware of the level of expense. She has an idea but, the block and turbo expense blew my budget completely. I could have gotten Greg's motor and rebuilt the turbos for about the same but once I committed to this path I had to follow through. I also plan to take it to the NG and she understands the expedited nature of this build. I am also putting nothing but the best in it this time as there was wear on some items that I didn't like so literally EVERYTHING in the bottom end will be new. The heads are being cleaned by me with the lifters being replaced and you all have already seen the cams.Quote:
Originally Posted by fastfalcon94
Had the NG not been in my home state; I probably wouldn't worry about it as much but, this is a vacation my wife and I will not miss as we get to drop the kids off with their grandparents and we get to act like teenagers again. I can't wait to put my mom behind the wheel of 600+AWHP and see the reaction. She was visiting last year before the NG and I had blown a meth line causing a serious lack of power the last time she rode in it ~450WHP. This year will be way different.
Jeff
Edit: I found where TSB seems to know the sizes of the compressor 47mm inducer and 58mm exducer. Obviously, my original thoughts from memory were a bit off.
http://www.3si.org/forum/f142/dr-750...53/index3.html
There is another thread somewhere on 3SI where Matt gives the dimensions. I just haven't found it yet.
I don't think he ever gave the full specs on the turbos since it's a "trade secret." The compressor inducer is 47mm for sure same size as a 20T wheel. He didn't go bigger than that due to longevity issues with the turbos coming apart which I have a feeling was why my MTC turbos did the same thing given the bigger compressor/turbine mismatch. I don't see the compressor wheel exducer being bigger than 58mm. It's not like it matters much. The 9 blade TD04HL hotside is where the real gains are at. I loved mine and went back with them again because the top end is a huge improvement over the 12 blade HL standard turbine. It can keep up with the compressor wheel and doesn't really hurt spool. I saw positive boost by 2200 rpms and 32 psi by 3300.
nom nomQuote:
Originally Posted by TurboSinceBirth
Kickass, man! This car will be an absolute street BEAST!
Baby steps but progress is once again being made. The heads are clean. After many baths in soapy water, using pipe cleaners through all the oil galleys, and some time with a dremel and SOS pads they are looking good. I am going to check the valves for a good seal and lap if neccesary tomorrow and hopefully have them fully assembled by the end of the week. The before pics are raunchy at best as I deleted them from my phone and found that they are still there and can only be accessed in thumbnail format. No biggie, you get the idea though.
Before on the exhaust side.
http://i495.photobucket.com/albums/r...ps08eeb2fd.jpg
Before combustion chamber.
http://i495.photobucket.com/albums/r...psb7195f8e.jpg
After exhaust side.
http://i495.photobucket.com/albums/r...ps1a2f9d1c.jpg
After combustion chamber.
http://i495.photobucket.com/albums/r...ps466a20c3.jpg
Cleaned topside.
http://i495.photobucket.com/albums/r...psb6b3bd44.jpg
They aren't perfect but, I'm happy with the result. I wasn't going to mess with the valve guides so some carbon had to be overlooked.
Ray came through with the rods and I goofed pretty badly by waiting for the rods before I bought pistons. If Ray couldn't get me the rods in time I was going to go with his pistons as there is a lead time involved. If he could, I was going to get the same 3SX pistons that were in it the last time as they were off the shelf items before and I called to verify they had them in stock. The day Ray called to tell me the rods were in I called 3SX to order the pistons and they were out of stock with a month of lead time. I called Ray back and had him make me a set of his and I am waiting for probably another 2 weeks for them to be done. Once I get them I will thrash to get this thing together and hopefully the car can make the NG.
Jeff
The oil pan is taking a bath right now as it has already had quite a bit of solvent through it. The bearing material hides in places you can't see and you have to get creative to get it all out. It'll be done later today.
The new crank and flywheel are cleaned of the cosmeline and the new block is next for cleaning.
http://i495.photobucket.com/albums/r...ps9500e0c4.jpg
I will also be doing steering rack boots today as the passenger one is torn. I may get the proposed new methanol setup tested too.
Jeff
Awesome! Keep us posted.
Think you'll be ready for NG?
I will be. The car is a question mark still. It is a hopeful possibility though. Spoke with Ray today and he said the pistons will be done soon.
Jeff
It's your exhaust side not supposed to be ported or knife edged? I thought Matt said that causes exhaust reversion. He just lightly gets rid of the casting flaws and polishes it up.
Subbed. Love your car.
The porting was done by IPS years ago along with the oversized valves. I simply knocked the carbon off exposing their work. That is the big difference from DR's head work and IPS's; the cnc machining marks are not removed from IPS.Quote:
Originally Posted by TurboSinceBirth
This doesn't seem to be a terrible thing though as they make good power. Turbo reversion is the only reversion I am concerned with and hopefully the recent changes will help in that department.
Thanks boosted.
More progress made today.
The oil pan is clean finally.
All the valves carbon buildup has been removed. The exhaust valves will require lapping. I'll get that done tomorrow along with head assembly.
All valvetrain parts have been cleaned. I couldn't believe the amount of material that came from the rocker arms. It's been said before and I'll reinforce it again, that shit goes everywhere.
Methanol testing is complete. I'll put up some pictures a little later as the methanol test results are pretty cool. For now I'll say there was a restriction in the 1/4" compression fittings on my setup. That problem will be fixed.
Jeff
Keep that progress coming Jeff!!
Still need lapped but, looking good.
http://i495.photobucket.com/albums/r...ps3a5e6e24.jpg
The methanol tests were done with 3/8" compression feeding the system instead of 1/4" compression. Bottom line on the tub was the system's old flow rate with 1/4" compression feeding it and a best of 1675ml/min. It typically averages 1625ml/min with this arrangement. The middle line was the lowest tested value with just a 3/8" compression feed added to the existing system at a flow rate of 1800ml/min. It averaged out to 1800ml/min over 3 tests with a best of 1850ml/min. The top line was with a 375ml/min nozzle added which bested 1975ml/min and averaged 1960ml/min.
http://i495.photobucket.com/albums/r...ps328591fc.jpg
I think there were variations in the tests because the battery charger that was hooked up was moving the voltage around going from charge mode (~13.2VDC loaded) to maintain mode (~12.5VDC loaded) That's why I ran multiple tests with each setup because there were typically 50-75ml/min differences between tests. It could have also been my start and stop timing but averaging the results got me the answer I was looking for.
I'm going to move the pump to the engine bay and effectively run the setup that produced the middle line on the bucket with 2 nozzles and a 3/8" feeder to the pump. This should give me the boost I was looking for when going >25psi with minimal cost. If it doesn't, I'll add the third nozzle and really bump the flow of the system. The good news is that I found the bottleneck of this sytem and proved a cost effective solution to overcoming it.
Jeff
So what size nozzles are you to be running again?
2 Devil"s Own DO14's. They are rated at 882ml/min at 100psi. The third nozzle was a snow 375ml/min rated at 60psi. I mention the rating psi because it makes a difference when you run 100+psi. The snows will outperform their rating and the Devil's Own will be right on target or slightly above depending on line pressure.
I don't recommend running much more than what I have bench tested with because they aren't seeing boost and the gains are diminishing. I figure the system is near it's limits to maintain good atomization (pump wise). That is the main reason I don't want to jump right into the 3 nozzle setup. If I feel I am still lacking in the methanol department once reassembled, I will add it and give feedback. For now, I'm gonna call it a cheap fix.
Jeff
Nice, I should be more than safe with what my snow 100cc/min x6 will flow then. Would you suggest going with the 3/8" feed with this setup as well?