home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > projects & restorations

Reply
 
Thread Tools Display Modes
Old 11-14-2013, 10:01 PM   #76
BassGuy
Board Member
 
BassGuy's Avatar
 
Join Date: Aug 2010
Location: Sarnia, ON
Default

I've got nuthin against 850s.
__________________
2003 Volvo XC70



1991 945GLE - 16v Wagon! (in pieces)

1990 245 - DD, Pepper-thing (car, wagon, boat, mobile) - K-cam'd and Dale-gear'd - now an actual fridge, probably

1987 760 Turbo Intercooler - dead 07/14/2011


Feedback Thread
BassGuy is offline   Reply With Quote
Old 11-14-2013, 10:46 PM   #77
Vmaxx
Board Member
 
Vmaxx's Avatar
 
Join Date: Oct 2011
Location: Palm Springs, FL
Default

Quote:
Originally Posted by BassGuy View Post
Do tell? And by tell I mean show pics?
http://volvospeed.com/vs_forum/topic...ber-a-850-t10/
__________________

¡Vivo! 850 T5 16T 019-Black Stone
JUNKED&PARTING
"That's why we drive old cars and try to act proud of it." -RSPi
pm me for batch of 850/X70 parts
Vmaxx is offline   Reply With Quote
Old 11-14-2013, 10:47 PM   #78
Redwood Chair
K-jet For Life
 
Redwood Chair's Avatar
 
Join Date: Mar 2007
Location: - Stock PSI Or Bust -
Default U R Do'in It Wrong

This is how it's done.

 photo Pinks228-2.jpg
__________________
Raise The Lowered


Image hosted by servimg.com

Quote:
Originally Posted by hiperfauto View Post
Folks on here don't know a good deal when they see it.
how psi stock cna support?

Redwood Chair is offline   Reply With Quote
Old 11-14-2013, 11:06 PM   #79
centason
Knipex=welfare queen
 
centason's Avatar
 
Join Date: Jan 2013
Location: Ft.Mill, SC
Default

Quote:
Originally Posted by Redwood Chair View Post
This is how it's done.

 photo Pinks228-2.jpg
Oh the pinks car I would rip my hood off for that.
__________________
Member: TBCCS
"The kind of man who wants the government to adopt and enforce his ideas is always the kind of man whose ideas are idiotic." -H. L. Mencken
Quote:
Originally Posted by 240240 View Post
Yes, but I keep having the dream of shoving the Cocaine up my ass!
Quote:
Originally Posted by golgothan View Post
Ohh god no, I'd rather eat hot diarrhea than drive a 7/9
Quote:
Originally Posted by RedFridge View Post
You sons of bitches are the biggest thread de-railers in forum history. Any forums history.
centason is offline   Reply With Quote
Old 11-14-2013, 11:08 PM   #80
centason
Knipex=welfare queen
 
centason's Avatar
 
Join Date: Jan 2013
Location: Ft.Mill, SC
Default

And I'd keep the welded valve covers
centason is offline   Reply With Quote
Old 11-15-2013, 01:07 AM   #81
Hoggster
Board Member
 
Hoggster's Avatar
 
Join Date: Jan 2003
Location: NC
Default

Quote:
Originally Posted by CAPT_BLOTTO View Post
I'm trying to figure out how all of this is going to be controlled/work.
It has been done before. Back when 850s were new someone put a second engine in the rear.

A LeMons team has a corolla/MR2 mash up with the front of the corolla welded to the back of the MR2. One engine has an automatic transmission and the other one has a stick shift. The ratios aren't even close to each other. It seems to work well, so using two identical engines and transmissions should be a whole lot better.

You can get a throttle synchronizer from a marine supply shop. Boat builders have been running dual and even triple engine setups forever.
Hoggster is offline   Reply With Quote
Old 11-15-2013, 01:27 AM   #82
Toyotahead
Board Member
 
Toyotahead's Avatar
 
Join Date: Apr 2008
Location: Cincinnati/Columbus OH
Default

Quote:
Originally Posted by Duder View Post
A black iron pipe roll cage gave Black Iron Racing its team name.

http://oppositelock.jalopnik.com/sch...ipe-1411428910

My roll cage is black iron

The old man used it back when he was racing dirt track. Super thick hoop (.120 wall equiv), then everything else is .90 wall or so equiv. I'm adding in a ton more reinforcing points, but it'll keep it rigid and safe I believe (the gusseting and additional bracing will help too). Light? Not exactly. But inexpensive and effective.
__________________
Pimp tints, doof doof, and slorts.
Toyotahead is offline   Reply With Quote
Old 11-15-2013, 02:35 PM   #83
84 Blue 240
Board Member
 
84 Blue 240's Avatar
 
Join Date: May 2006
Location: Pittsburgh, PA
Default

Turbines don't like pulsed flow. The efficiency goes to crap. Having single cylinders on each turbine is a recipe for 30% turbine efficiency. Ideally you want 3 cylinders on a turbine/scroll. That optimizes blowdown pulse energy, eveness of flow to turbine, and reversion characteristics. That's the reason you see so many turbos 6s.
__________________


Quote:
Originally Posted by manjiman View Post
I just wanted to know if the '87 740 turbo came with a differential? If so, which one?
1984 245 with Getrag Swap

Last edited by 84 Blue 240; 11-15-2013 at 02:43 PM..
84 Blue 240 is offline   Reply With Quote
Old 11-15-2013, 02:42 PM   #84
claymore
Board Member
 
Join Date: Jul 2011
Default

Quote:
Originally Posted by 84 Blue 240 View Post
Turbines don't like pulsed flow. The efficiency goes to crap. Having single cylinders on each turbine is a recipe for 20% turbine efficiency. Ideally you want 3 cylinders on a turbine/scroll. That optimizes blowdown pulse energy, eveness of flow to turbine, and reversion characteristics. That's the reason you see so many turbos 6s.
Moved on from that idea now, but if you look at the Owen development setup, it looks like it has all 4 cylinders going into a collector, then splitting off to the 4 turbos, so that would probably even out the pulses. Anyway, it was just a thought that got flamed rather than a sensible discussion.
claymore is offline   Reply With Quote
Old 11-15-2013, 02:45 PM   #85
Ursan
الله الفول السوداني شطائر
 
Ursan's Avatar
 
Join Date: Jun 2004
Location: Massachusetts, USA
Default

__________________
Quote:
Originally Posted by 740freak View Post
how psi a stock can support?
Quote:
Originally Posted by speedn_j View Post
I think this might be my chariot if I can jew the price down.

1990 780t Kind of Modded 1994 945t Pegz, Tintz, Hidz.
"Rear Wheel Drive, the way God intended. If a car is being pulled from the front, doesn't that mean it's being towed?"

"Lister, you are a polyp on the anus of society." - A.J. Rimmer
Ursan is offline   Reply With Quote
Old 11-15-2013, 03:03 PM   #86
zdriver123
Board Member
 
zdriver123's Avatar
 
Join Date: Sep 2010
Location: Sequim Washington
Default

Quote:
Originally Posted by Redwood Chair View Post
This is how it's done.

 photo Pinks228-2.jpg
I'm Dissappointed in you Ken. Telling us that this is how its done. You can obviously see that he used a Fram oil filter.
zdriver123 is offline   Reply With Quote
Old 12-11-2013, 07:34 PM   #87
Turbeam
Board Member
 
Join Date: Jul 2009
Default

I do like radical thinking, whether it turns out to be practical and workable or not, it is what takes all kinds of developments in completely new directions.

I'd agree, feeding a turbocharger into a supercharger is indeed compound charging providing there is a pressure ratio higher than 1 across both at any time. There is no difference in doing this than doing the same thing by feeding one turbo into another.

The twin engine arrangement is also something that has been done many times on everything from rallycross Minis to Pikes Peak twin Ottinger-engined VW Sciroccos.

In the UK it isn't legal to have both engines running at the same time on a road car though.

This can actually be very straightforward on a FWD car, and using second hand parts/ donor vehicle not at all expensive. It would likely cost more to get the extra power out of the second engine than to do the whole rest of the conversion if it is done skilled DIY style.

Reliable.... of course. 2 gearboxes, 2 differentials and 4 driveshafts acting on 4 tyres, a fair bit more total car weight, but also twice as much power to push it along.... or looking at it another way, each engine only has just over half of the cars weight to shift.

As already mentioned, a manual gearbox in the front and an auto behind seems to work well to allow for speed differential, but 2 manuals can also work if the linking is done well.

I've even seen one case where the driver could apply more throttle to the rear engine to help kill understeer in corners by using a seperate additional rear hand throttle!

It should certainly accelerate quickly, but the down side is the extra weight generating higher lateral loading on the tyres in corners..... to the point that it could actually be quicker overall to build an ultra-light car with only one engine?

It would certainly be interesting and fun to drive though!
Turbeam is offline   Reply With Quote
Old 12-11-2013, 07:54 PM   #88
lummert
Board Member
 
lummert's Avatar
 
Join Date: Jan 2008
Location: Portland IN
Default

Quote:
Originally Posted by Ursan View Post
Start with 5 of these in series and tell us the result.


http://www.ebay.com/itm/New-Electric...-/141107987228
Five times zero still equals zero.
__________________
Trying to understand stupid people is like trying to pick up a turd by the clean end.
lummert is offline   Reply With Quote
Old 12-12-2013, 03:48 AM   #89
claymore
Board Member
 
Join Date: Jul 2011
Default

This is the donor car as of yesterday
claymore is offline   Reply With Quote
Old 12-12-2013, 10:09 PM   #90
PRVersion
regretting name change
 
PRVersion's Avatar
 
Join Date: Feb 2005
Location: Portland
Default

Quote:
Originally Posted by claymore View Post
my 850 is already compound charged.
what, do you have 2 cylinders running a small turbo, and 3 running a bigger one?

Quote:
Originally Posted by claymore View Post
Ok what about 3 cylinders feeding a 15g and the other two feeding a 12t? I'm not trolling, I just want ideas, of alternatives to something like a garrett gtx,
never mind.
__________________
Quote:
Originally Posted by XxJenoxX View Post
PRVersion wins.
Quote:
Originally Posted by golgothan View Post
accelerate til the last possible moment, then accelerate more...
PRVersion is offline   Reply With Quote
Old 12-12-2013, 11:12 PM   #91
Ursan
الله الفول السوداني شطائر
 
Ursan's Avatar
 
Join Date: Jun 2004
Location: Massachusetts, USA
Default

Quote:
Originally Posted by lummert View Post
Five times zero still equals zero.
Ursan is offline   Reply With Quote
Old 12-13-2013, 12:49 PM   #92
claymore
Board Member
 
Join Date: Jul 2011
Default

Quote:
Originally Posted by PRVersion View Post
what, do you have 2 cylinders running a small turbo, and 3 running a bigger one?



never mind.
Yep, quote posts off the first page, things have moved on since then.

claymore is offline   Reply With Quote
Old 12-14-2013, 07:53 PM   #93
buerckner
Board Member
 
Join Date: Jul 2008
Default

Quote:
Originally Posted by claymore View Post


Love your work!
buerckner is offline   Reply With Quote
Old 12-15-2013, 02:37 PM   #94
claymore
Board Member
 
Join Date: Jul 2011
Default

Quote:
Originally Posted by buerckner View Post
Love your work!
Thank you
claymore is offline   Reply With Quote
Old 04-05-2014, 11:11 AM   #95
claymore
Board Member
 
Join Date: Jul 2011
Default

Just an update:



claymore is offline   Reply With Quote
Old 04-05-2014, 11:27 AM   #96
Jack
Banned
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

WOW
I like where this is going
Jack is offline   Reply With Quote
Old 04-05-2014, 02:45 PM   #97
Hoggster
Board Member
 
Hoggster's Avatar
 
Join Date: Jan 2003
Location: NC
Default

Nice. Its good to see someone doing something crazy like this. Don't come to your senses until your finished! Then you can drive us to crazy town with you. Really fast.
Hoggster is offline   Reply With Quote
Old 04-05-2014, 04:40 PM   #98
GreatDaneShane
Board Member
 
GreatDaneShane's Avatar
 
Join Date: Jul 2007
Location: Houston, Texas
Default

awwwwwww yiss
GreatDaneShane is offline   Reply With Quote
Old 04-05-2014, 05:51 PM   #99
Hank Scorpio
Chubfest 2009 Survivor
 
Hank Scorpio's Avatar
 
Join Date: Nov 2002
Location: The neighborhood with the ******* guitar player.
Default

OMG ten years later and I still get to use this!



Just replace twin with Pent.
__________________
Hank Scorpio is from the Simpsons. You can call me Doug ;)
Will trade guitars/guitar parts for go fast goodies or stuff I need. Just PM.
www.kauerguitars.com the second best way to upset neighbors and alienate people.
History: Car 1 (242) | Car 2 (t5r) | Car 3 (255)
Hank Scorpio is offline   Reply With Quote
Old 04-11-2014, 12:50 PM   #100
claymore
Board Member
 
Join Date: Jul 2011
Default

Needs lowering a bit, I wonder how I might do that

claymore is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 05:48 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.