He used nitrous to spool the turbo and proceeded to drive over the crankshaft. Be prepared for an expensive learning curve.
| Slant Six Forum https://www.slantsix.org/forum/ |
|
| Help from nitrous oxide in spooling turbo https://www.slantsix.org/forum/viewtopic.php?t=59509 |
Page 1 of 3 |
| Author: | billdedman [ Thu Apr 21, 2016 10:08 pm ] |
| Post subject: | Help from nitrous oxide in spooling turbo |
My turbocharger is probably too big for the engine. This has made it hard to get sufficient boost at stall to leave the starting line hard. I have heard that some racers use a very short shot of nitrous just before launching the car, which spools the turbo much faster and creates impeller rpm that helps make boost, immediately. I am considering a fifty-horsepower, approximately 1-second shot of nitrous for improving my pitiful 60-foot times with this car. (1.91-sec.) I don't know what else I need to make this work. Any ideas? I would intiate the N20 with a pushbutton and include a Hobbs switch which would shut it off when the boost went past fifteen pounds. Any ideas? Thanks for any information! Bill |
|
| Author: | Greg Ondayko [ Fri Apr 22, 2016 4:11 am ] |
| Post subject: | |
Nick Stamm did this on his turbo d150 truck - I think I ran 11's - I forget his handle on here... I am sure he can get you some sneaky tips! Greg |
|
| Author: | Joshie225 [ Fri Apr 22, 2016 8:15 am ] |
| Post subject: | |
Bill, Yes, most spool assist systems use a Hobbs switch to turn them off. Before doing that you might consider a smaller turbine housing. |
|
| Author: | Rick Covalt [ Fri Apr 22, 2016 8:16 am ] |
| Post subject: | |
Nick is Turboram. I tried to get a PM to him months ago and got no replies. I don't think he is on here much. Rick |
|
| Author: | slantzilla [ Fri Apr 22, 2016 8:39 am ] |
| Post subject: | |
He used nitrous to spool the turbo and proceeded to drive over the crankshaft. Be prepared for an expensive learning curve.
|
|
| Author: | Greg Ondayko [ Fri Apr 22, 2016 10:06 am ] |
| Post subject: | |
Quote: Nick is Turboram. I tried to get a PM to him months ago and got no replies. I don't think he is on here much.
Rick does anyone have a Cell or Email for him? He was trying to sell a 64ish 4 door drag car a while back. Greg |
|
| Author: | billdedman [ Fri Apr 22, 2016 10:10 am ] |
| Post subject: | |
Thanks for all the replies, guys! I will give Gerry at the G-Pop Shop a call on Monday to get an estimate on a new turbo with a smaller housing, to, hopefully, generate some boost at stall. I am not willing to put this motor at risk with regard to Slantzilla's comment about Turboram's experience. A new converter is a lot of work and is probably more expensive than a new turbocharger... but one way or another, I'll git-r-dun!  I appreciate all the replies!Bill, in Conway, Arkansas |
|
| Author: | Joshie225 [ Fri Apr 22, 2016 11:40 am ] |
| Post subject: | |
Unless you have some strange turbo you should be able to buy just the exhaust turbine housing. |
|
| Author: | billdedman [ Fri Apr 22, 2016 12:04 pm ] |
| Post subject: | |
No, it's a 4-bolt 66mm Turbonetics; pretty much generic, I think. Thanks for your interest! Bill |
|
| Author: | slantzilla [ Fri Apr 22, 2016 12:19 pm ] |
| Post subject: | |
Greg, I have a cell number for him. I'll pm it to you. |
|
| Author: | billdedman [ Fri Apr 22, 2016 12:29 pm ] |
| Post subject: | |
I have an early (1964) crank. I want to increase the counterbore in the back of the crank to the larger (1968-up) size. Is there enough metal there on the flange to do that? And, what are the corrrect diameters for those bores? I have read 1-1/4" (early) and 1- 1/2" (late) for them, but am not certain. Any info appreciated! Bill |
|
| Author: | Joshie225 [ Fri Apr 22, 2016 12:47 pm ] |
| Post subject: | |
1.57" torque converter recess for the early crank, 1.82" for the later according to the table. http://www.slantsix.org/articles/parts-matrix/jpg.htm Doug Dutra has posted a picture showing it done. The locating register gets thin, but that's okay. |
|
| Author: | Dart270 [ Fri Apr 22, 2016 12:53 pm ] |
| Post subject: | |
I plan to hog one of mine out (machine shop) at some point and think it should be fine. I have a 62 mm Turbonetics and it is still a bit big with 2400 stall converter. I am trying to go to 3000 stall, which should get it on boost pretty fast. Lou |
|
| Author: | billdedman [ Fri Apr 22, 2016 1:36 pm ] |
| Post subject: | Thanks! |
Thanks for the good info! My machinist thinks he can make a cutting tool that can enlarge that hole with the crank in the car, so, O'm going to let him do that. My converter guy says that larger pilot hole will open up a huge variety/array of converters for me, so, it's worth doing. Thanks a lot for all the good info!!! Bill |
|
| Author: | Dart270 [ Fri Apr 22, 2016 2:09 pm ] |
| Post subject: | |
Yeah, I tried to order a small pilot converter recently and Edge would not do it. Probably Midwest Converters would still do it. Best to use a late crank or open up an earlier one. Lou |
|
| Page 1 of 3 | All times are UTC-08:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|