200hp 1200DP Turbo 'Challenger motor'
- petew
- Posts: 3920
- Joined: Sat Oct 07, 2006 4:05 pm
Re: 160hp 1200DP Turbo 'Challenger motor'
Right, that makes sense. I thought we were talking a 40hp case.
On a related note, the 36hp challenge has always boggled my mind. Crazy stuff.
On a related note, the 36hp challenge has always boggled my mind. Crazy stuff.
- Wally
- Posts: 4563
- Joined: Mon Oct 28, 2002 12:01 am
Re: 160hp 1200DP Turbo 'Challenger motor'
Hey, I started my pet project again
This one I put in a used (!) W110 cam in on CB straight cuts with 2 degrees advance
and dry-sump again, of course, as the car runs that system, so had little choice on that one.
Because of the DS pump, 'had' to use VWspeedshop's system of multirib (PK5) pulleys. Damn, those are nice!
For now (and time constraints), it will run N/A. Curieus what it makes on 5th september if I meet the deadline..
This one I put in a used (!) W110 cam in on CB straight cuts with 2 degrees advance
and dry-sump again, of course, as the car runs that system, so had little choice on that one.
Because of the DS pump, 'had' to use VWspeedshop's system of multirib (PK5) pulleys. Damn, those are nice!
For now (and time constraints), it will run N/A. Curieus what it makes on 5th september if I meet the deadline..
T4T: 2,4ltr Type 4 Turbo engine, 10.58 1/4 mi
www.apfelbeck.nl
"Mine isn't turbo'd to make a slow engine fast, but to make a fast engine insane" - Chip Birks
www.apfelbeck.nl
"Mine isn't turbo'd to make a slow engine fast, but to make a fast engine insane" - Chip Birks
- buguy
- Posts: 6209
- Joined: Wed Jan 26, 2005 8:53 pm
Re: 160hp 1200DP Turbo 'Challenger motor'
Nice! What heads and compression are you planning?
- Wally
- Posts: 4563
- Joined: Mon Oct 28, 2002 12:01 am
Re: 160hp 1200DP Turbo 'Challenger motor'
This year I had a set new AA ‘043’ heads welded up, so the 77mm bore cylinders would seat properly..
CR will turn out about 1:8 or 8,5 i think. Not measured yet as heads are still at machine shop.
CR will turn out about 1:8 or 8,5 i think. Not measured yet as heads are still at machine shop.
-
- Posts: 2433
- Joined: Wed Apr 13, 2011 1:01 pm
Re: 160hp 1200DP Turbo 'Challenger motor'
cool! stock crank?(one of the rules?) what rpm and bhp are you hoping for?
-
- Posts: 169
- Joined: Thu May 16, 2019 7:08 am
Re: 160hp 1200DP Turbo 'Challenger motor'
Nice as always Walter!
- Wally
- Posts: 4563
- Joined: Mon Oct 28, 2002 12:01 am
Re: 160hp 1200DP Turbo 'Challenger motor'
No rule, but yes, I will use the (fragile) stock crank and rods. Have done some treatments to them in the past though for strengthandy198712 wrote: ↑Thu Aug 06, 2020 12:41 am cool! stock crank?(one of the rules?) what rpm and bhp are you hoping for?
These 1200 engines build up like this usually seem to stop at about 70-85hp. One of the competitors had 85 with the same intake manifolds/TB's I will use and a bigger cam, so I guess around 80hp (crank) with the W110, but its so far into the unknow still, thats its anyone's guess what it will really be at the dyno that day.
T4T: 2,4ltr Type 4 Turbo engine, 10.58 1/4 mi
www.apfelbeck.nl
"Mine isn't turbo'd to make a slow engine fast, but to make a fast engine insane" - Chip Birks
www.apfelbeck.nl
"Mine isn't turbo'd to make a slow engine fast, but to make a fast engine insane" - Chip Birks
- buguy
- Posts: 6209
- Joined: Wed Jan 26, 2005 8:53 pm
Re: 160hp 1200DP Turbo 'Challenger motor'
So your 160hp goal should be no problem when it comes time for the turbo?
- MegaRookie
- Posts: 146
- Joined: Mon Sep 14, 2009 12:18 pm
Re: 160hp 1200DP Turbo 'Challenger motor'
Very nice to see that you picked up this project again! I was wondering if you had the x2 engine pressurized already
Enjoy!
Mark
Enjoy!
Mark
- Wally
- Posts: 4563
- Joined: Mon Oct 28, 2002 12:01 am
Re: 160hp 1200DP Turbo 'Challenger motor'
Indeed! Thats the idea at least: make a really good N/A engine as these small turbo's do not work at 30 psi. Most of these smaller frame turbo's will yield best performance at max 1,5 - 1,7 bar in my experience. Most compressor maps say the same.
If I can make my goal N/A at only 1,5 bar (22-24 psi), 200 should be doable.
Turbo choice is critical too however. My old TD04L-13T was ~perfect I still think, but I sold it long time ago and good ones are not so easy to come by anymore these days for small $$.. I do have a very pristine GT1752 (Saab 93) in the pipeline, which should be similar, although compressor wheel is a little smaller then the 13T (56mm exducer) was. The '52' in 1752 is the compressor exducer (largest diameter) size with Garretts as we all know
- buguy
- Posts: 6209
- Joined: Wed Jan 26, 2005 8:53 pm
Re: 160hp 1200DP Turbo 'Challenger motor'
Bummer. I can buy 13-T's all day here used for less than $100
-
- Posts: 2433
- Joined: Wed Apr 13, 2011 1:01 pm
Re: 160hp 1200DP Turbo 'Challenger motor'
Hi,Wally wrote: ↑Thu Aug 06, 2020 2:05 amNo rule, but yes, I will use the (fragile) stock crank and rods. Have done some treatments to them in the past though for strengthandy198712 wrote: ↑Thu Aug 06, 2020 12:41 am cool! stock crank?(one of the rules?) what rpm and bhp are you hoping for?
These 1200 engines build up like this usually seem to stop at about 70-85hp. One of the competitors had 85 with the same intake manifolds/TB's I will use and a bigger cam, so I guess around 80hp (crank) with the W110, but its so far into the unknow still, thats its anyone's guess what it will really be at the dyno that day.
Sounds like fun! i have a 1200 to build among other projects with this challenge in mind but there's many things to spend my money on first
i see you have it balanced, i reckons thats got to be one of the biggest helps to make it live, everything working together not fighting each other!
Best of luck to you
- CobraJet
- Posts: 430
- Joined: Sun Oct 31, 2010 11:12 pm
Re: 160hp 1200DP Turbo 'Challenger motor'
I'll bet you've already seen these but just in case. From Australian VW racer/tuner, George Reynolds.
You do not have the required permissions to view the files attached to this post.
- panel
- Posts: 4201
- Joined: Sun Sep 24, 2000 12:01 am
Re: 160hp 1200DP Turbo 'Challenger motor'
So cool !
'65 Bus with a JDM Subaru EJ20 Turbo
Built by Germans powered by Japanese and brought together by Canadians
Built by Germans powered by Japanese and brought together by Canadians
- Wally
- Posts: 4563
- Joined: Mon Oct 28, 2002 12:01 am
Re: 160hp 1200DP Turbo 'Challenger motor'
Yes, seen those, but does not apply for our Challenge as we can use the stock dual port 1300 heads (euro spec).
Seems still not optimal as intake from next cylinder is too close so interferes the flow. Basically still single port, only bigger. A lot
I even went to the effort of buying new DP 1600 heads and have those weld up to remachine for 77mm bore seating..
Seems still not optimal as intake from next cylinder is too close so interferes the flow. Basically still single port, only bigger. A lot
I even went to the effort of buying new DP 1600 heads and have those weld up to remachine for 77mm bore seating..