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Forum: projects & restorations 03-19-2019, 07:40 PM
Replies: 591
Views: 177,939
Posted By Duder
The Fiat color is a good bit more sagey, if that...

The Fiat color is a good bit more sagey, if that makes sense. The 1975 "Berkshire Green" (aka pea green) color has more yellow in it, the Fiat color looks to be more bluish.
Forum: projects & restorations 03-19-2019, 04:38 PM
Replies: 591
Views: 177,939
Posted By Duder
Here's another, from Ansel's instagram...

Here's another, from Ansel's instagram (@vulvaturbo)

https://i.imgur.com/TeN0n3el.jpg
Forum: projects & restorations 03-19-2019, 04:21 PM
Replies: 591
Views: 177,939
Posted By Duder
Happy to oblige! I don't have anything super...

Happy to oblige! I don't have anything super recent, but here are a few from February. First one is washed out and 2nd is corrected to look closer to the actual color.

It's looking like my blue...
Forum: projects & restorations 03-19-2019, 01:20 PM
Replies: 591
Views: 177,939
Posted By Duder
I have a light blue 245 and a light green 245....

I have a light blue 245 and a light green 245. The women all love the green one. Take that however you will!
Forum: projects & restorations 03-19-2019, 12:08 AM
Replies: 458
Views: 84,107
Posted By Duder
Interior looks good to me. Congrats for getting...

Interior looks good to me. Congrats for getting it on the road! Time to rip some clean Johnnies!
Forum: maintenance & nonperformance 03-15-2019, 01:15 PM
Replies: 15
Views: 478
Posted By Duder
A well considered assessment and good description...

A well considered assessment and good description of what can happen.



As Towery pointed out, the only positive seal on the turbine end is a small piston ring. This is meant to prevent/reduce...
Forum: projects & restorations 03-13-2019, 05:34 PM
Replies: 239
Views: 38,914
Posted By Duder
Dang, I didn't realize you were at Sonoma! I...

Dang, I didn't realize you were at Sonoma! I meant to make it over to Radwood but it was so far over on the other side of the track and I couldn't bring pit vehicles this time :-(

Car looks great...
Forum: projects & restorations 03-07-2019, 02:37 PM
Replies: 199
Views: 51,348
Posted By Duder
Bodies were still stamped by Pressed Steel in...

Bodies were still stamped by Pressed Steel in Scotland even into 1800S production. Final vehicle assembly shifted from Jensen (P1800) to Volvo (1800S). But by 1970 the body stamping may have moved...
Forum: performance & modifications 03-05-2019, 07:34 PM
Replies: 10
Views: 606
Posted By Duder
That could have been someone's shadetree theory,...

That could have been someone's shadetree theory, but it's not a valid one. The flow passages do eventually join as the exhaust gas enters the turbine wheel. So there is equalization that happens just...
Forum: performance & modifications 03-05-2019, 01:51 PM
Replies: 10
Views: 606
Posted By Duder
Turbo bat signal must have worked again. Damn. I...

Turbo bat signal must have worked again. Damn. I need to disable that thing.

Ideally you want the two halves of the gas passage to be perfectly sealed and isolated from each other all the way from...
Forum: article composition 02-28-2019, 09:39 PM
Replies: 456
Views: 205,693
Posted By Duder
The 1-4 and 2-3 output voltages should never be...

The 1-4 and 2-3 output voltages should never be above ~2.5V. So yes, it appears something has been wired incorrectly.

Can you explain what you mean by "I'm currently stuck with no grounding from...
Forum: projects & restorations 02-24-2019, 02:00 PM
Replies: 98
Views: 12,597
Posted By Duder
The rear of this thing turned out to look pretty...

The rear of this thing turned out to look pretty incredible. Kudos on solid ideas and execution! Pretty brilliant to use the Volvo load floor and VW engine lid in the way that you did.
Forum: performance & modifications 02-20-2019, 08:58 PM
Replies: 60
Views: 2,264
Posted By Duder
Damn, 7500 ft. DA is pretty extreme. In that case...

Damn, 7500 ft. DA is pretty extreme. In that case yes, you will get near 60 lb/min at 3.6 PR. Not sure if Stiggy would ever need to operate there though.

76mm compressor does seem like a smart...
Forum: performance & modifications 02-20-2019, 08:19 PM
Replies: 60
Views: 2,264
Posted By Duder
My fault - I should have never been born. If I'd...

My fault - I should have never been born. If I'd never been born then none of this would have ever happened.

Looking at the compressor map for an EFR7064 I can see why you were running out of...
Forum: performance & modifications 02-20-2019, 07:54 PM
Replies: 60
Views: 2,264
Posted By Duder
Ah ok, sorry man. I thought maybe Mike got this...

Ah ok, sorry man. I thought maybe Mike got this from someone on vwvortex since the plots looked identical to that thread referenced earlier.

Certainly valid to build in some headroom for future...
Forum: performance & modifications 02-20-2019, 07:17 PM
Replies: 60
Views: 2,264
Posted By Duder
So what's this guy's deal then? Can he show you...

So what's this guy's deal then? Can he show you how he arrived at 60 - 65 lb/min? Like with math?
Forum: performance & modifications 02-20-2019, 03:48 PM
Replies: 60
Views: 2,264
Posted By Duder
I really doubt you'll be flowing over 60...

I really doubt you'll be flowing over 60 lb/min... was that operating point specific to your setup or taken from some other comparison?
Forum: projects & restorations 02-20-2019, 12:06 AM
Replies: 458
Views: 84,107
Posted By Duder
Which front end setup are you going to be running...

Which front end setup are you going to be running on this car (hood, lights, grille, etc)?
Forum: performance & modifications 02-19-2019, 12:19 AM
Replies: 60
Views: 2,264
Posted By Duder
Rad, thanks for posting all of that. Stiggy will...

Rad, thanks for posting all of that. Stiggy will have to decide how relevant it is to compare your data to his Redblock, but it's got to be in a similar ballpark.

To translate turbocharger sizing...
Forum: performance & modifications 02-18-2019, 10:06 PM
Replies: 60
Views: 2,264
Posted By Duder
Solid advice. What are the engine specs for the...

Solid advice. What are the engine specs for the measured data plotted on that map?

By specs I mean displacement, head work, cam, fuel type, air/fuel ratio, intercooler type, charge plumbing...
Forum: performance & modifications 02-18-2019, 05:15 PM
Replies: 60
Views: 2,264
Posted By Duder
It actually appears to be very similar...

It actually appears to be very similar performance-wise to a Gen1 GTX3576R, just from a cursory look at the compressor map and turbine sizing.
Forum: performance & modifications 02-18-2019, 01:31 PM
Replies: 60
Views: 2,264
Posted By Duder
I don't get a bonus either way so it's all the...

I don't get a bonus either way so it's all the same...
Forum: performance & modifications 02-18-2019, 12:19 PM
Replies: 60
Views: 2,264
Posted By Duder
Nice to see the overlaid maps, and that guy does...

Nice to see the overlaid maps, and that guy does make logical conclusions about each comparison - except - he's saying "as you can see, turbo x will spool up ~500rpm sooner than turbo y..." a lot....
Forum: performance & modifications 02-17-2019, 01:59 PM
Replies: 60
Views: 2,264
Posted By Duder
https://media1.tenor.com/images/7beb1ba265172a2db4...

https://media1.tenor.com/images/7beb1ba265172a2db4830ab5f024884c/tenor.gif?itemid=10849163

Wow I guess I really cleared the room with that one.
Forum: projects & restorations 02-16-2019, 06:31 PM
Replies: 798
Views: 115,113
Posted By Duder
Awesome job man - this all looks like it belongs...

Awesome job man - this all looks like it belongs in there now. The Volvo body I mean.
Forum: performance & modifications 02-14-2019, 06:53 PM
Replies: 60
Views: 2,264
Posted By Duder
Haha, hey guys. Have had my head buried in work...

Haha, hey guys. Have had my head buried in work for the past few days. Le Mans Hypercars need turbos too, just as much as Redblocks do!

There are two generations of GTX3576R - maybe that's where...
Forum: performance & modifications 02-04-2019, 12:23 PM
Replies: 17
Views: 926
Posted By Duder
This means it was balanced in two stages: 1)...

This means it was balanced in two stages:

1) component balancing: compressor wheel and turbine wheel / shaft assembly are balanced on their own, usually 2 planes each. Cuts are made at the nose...
Forum: performance & modifications 02-04-2019, 03:25 AM
Replies: 17
Views: 926
Posted By Duder
Component balance and assembly balance are two...

Component balance and assembly balance are two separate processes - component balancing feeds into assembly balancing. Any brand of turbo would benefit from at least checking imbalance at both...
Forum: projects & restorations 02-03-2019, 01:44 AM
Replies: 798
Views: 115,113
Posted By Duder
So it's a 2876 now then? That's a healthy...

So it's a 2876 now then? That's a healthy mismatch between turbine and compressor. The GT28 turbine wheel is only 54mm on the inducer (major) diameter.
Forum: projects & restorations 02-02-2019, 03:12 PM
Replies: 798
Views: 115,113
Posted By Duder
Interesting; I didn't know China was making...

Interesting; I didn't know China was making journal bearing GT3076R knock-offs.
Is the "GTX" compressor wheel a genuine one, or also a China copy?

That C255 compressor design flows quite a bit...
Forum: projects & restorations 02-01-2019, 07:26 PM
Replies: 111
Views: 21,467
Posted By Duder
Update? What's the plan for this car now that...

Update? What's the plan for this car now that you're selling the Chinesium DCOE kit?
Forum: projects & restorations 01-31-2019, 05:45 PM
Replies: 458
Views: 84,107
Posted By Duder
I can relate; had a similar experience. I bought...

I can relate; had a similar experience. I bought a perfect brown '87 dash from Dave Barton and installed it in my 242. Always used a reflective sun shade and tried to park the car out of the direct...
Forum: maintenance & nonperformance 01-23-2019, 02:13 PM
Replies: 5
Views: 541
Posted By Duder
My advice would be to not buy Chinese copy ball...

My advice would be to not buy Chinese copy ball bearing turbos...
Forum: projects & restorations 01-22-2019, 10:56 PM
Replies: 68
Views: 16,053
Posted By Duder
Awesome update on the race car. 3.91s will wake...

Awesome update on the race car. 3.91s will wake it up for sure!
Forum: projects & restorations 01-18-2019, 07:58 PM
Replies: 459
Views: 80,190
Posted By Duder
I forget which turbine housing you have right...

I forget which turbine housing you have right now, but there are 4 or 5 different A/Rs available for the GTX42R turbine. You could always go up to a larger housing if you find yourself at a power...
Forum: maintenance & nonperformance 01-18-2019, 03:26 PM
Replies: 5
Views: 541
Posted By Duder
Addressing your points: 1) The external...

Addressing your points:

1) The external restrictor is needed to reduce oil flow into the ball-bearing system. 1.0 mm is a good place to start for the external restrictor. If you don't have any oil...
Forum: projects & restorations 01-18-2019, 03:06 PM
Replies: 459
Views: 80,190
Posted By Duder
Yes, exactly. It's weird but it can happen.

Yes, exactly. It's weird but it can happen.
Forum: projects & restorations 01-18-2019, 02:00 PM
Replies: 459
Views: 80,190
Posted By Duder
Erik can correct me if I'm wrong, but I don't...

Erik can correct me if I'm wrong, but I don't think he was applying any pressure to the top of the gate to attempt to keep it closed. The "bolt mod" effectively does that mechanically - seemed like a...
Forum: projects & restorations 01-17-2019, 12:07 AM
Replies: 8
Views: 970
Posted By Duder
Wow, nice survivor, awesome find. Have fun with...

Wow, nice survivor, awesome find. Have fun with the resurrection. Looks like Pat Dickman's "Badger" 242 with the primer stripes. That's a good thing!
Forum: projects & restorations 01-16-2019, 02:40 PM
Replies: 459
Views: 80,190
Posted By Duder
Awesome, thanks for the whole riveting saga in...

Awesome, thanks for the whole riveting saga in one megapost.

For others reading this - Erik's core issue was wastegate flutter. From the video he sent me it did sound a bit like compressor surge,...
Forum: projects & restorations 01-16-2019, 02:16 PM
Replies: 290
Views: 54,259
Posted By Duder
A modern diesel can be an awesome highway cruiser...

A modern diesel can be an awesome highway cruiser - smooth, quiet, and un-stinky. And as Harald is illustrating, they can make great power too. But I think it may not be the best choice for your...
Forum: projects & restorations 01-16-2019, 02:03 PM
Replies: 591
Views: 180,841
Posted By Duder
If you want someone to bounce your ideas off of,...

If you want someone to bounce your ideas off of, I'm glad to be that someone. I'm curious to hear your plans and might be able to offer alternate ideas to help reduce the expense. Turbo matching...
Forum: projects & restorations 01-15-2019, 09:28 PM
Replies: 459
Views: 80,190
Posted By Duder
... Are you taking a dramatic pause before...

...

Are you taking a dramatic pause before finishing the story? :-P
Forum: projects & restorations 01-15-2019, 03:17 PM
Replies: 290
Views: 54,259
Posted By Duder
The only inline 6 diesel that would really fit is...

The only inline 6 diesel that would really fit is the D24...and barf. :barf: to that idea.

If he wanted to do an oil burner I think a 2.0L common-rail TDI would be much better suited. The...
Forum: performance & modifications 01-15-2019, 01:23 PM
Replies: 15
Views: 915
Posted By Duder
Yes, it's the entire huge batch that I've been...

Yes, it's the entire huge batch that I've been selling for the past 2 years that's affected. Sorry for the confusion. I posted some notes in bold on the website in hopes that people wouldn't miss it.
Forum: projects & restorations 01-15-2019, 12:11 AM
Replies: 290
Views: 54,259
Posted By Duder
Upvoted it for you. 5 stars!!!1! Lots of...

Upvoted it for you. 5 stars!!!1!

Lots of good stuff here! I'm not surprised nor saddened to hear that you want to go with a mild lift and meaty tires for this. Makes perfect sense given the...
Forum: maintenance & nonperformance 01-14-2019, 05:50 PM
Replies: 1
Views: 353
Posted By Duder
1. No - you didn't hurt anything inside the...

1. No - you didn't hurt anything inside the turbo. The bolt holes in the oil drain flange don't pierce the internal oil drain cavity. I would just make sure the threads are still OK, maybe chase them...
Forum: showroom 01-12-2019, 05:31 PM
Replies: 591
Views: 100,177
Posted By Duder
That's a good looking Jeep Cherokee :-P

That's a good looking Jeep Cherokee :-P
Forum: performance & modifications 01-12-2019, 05:29 PM
Replies: 30
Views: 1,239
Posted By Duder
Check out a Bosch recirculating bypass valve like...

Check out a Bosch recirculating bypass valve like 0 280 142 110. They work well and are relatively cheap.
Forum: performance & modifications 01-11-2019, 12:47 PM
Replies: 15
Views: 915
Posted By Duder
Sorry I wasn't able to respond last night, but I...

Sorry I wasn't able to respond last night, but I did get basically the same feedback from Karl that mck1117 provided here. You should complete the installation, test functionality, then let us know...
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