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Old 02-20-2019, 12:56 PM   #201
JohnMc
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All the snorty sounds, without the fiddly metal bits to do the tuning.

As far as reliable, though? Dunno, since the DCOE's tuning is almost all 'hard coded' by swapping little metal bits around, the tune they're in seems to be pretty rock solid. Very few adjustments to wander off over time, they pretty much just always run the same. Unlike the SU's which needed fairly frequent twidling with to keep it running smoothly.

Of course, the DCOE's also go lean around left-hand corners, rich around right (or backward?) and sometimes slosh a little fuel out of the bowl vents in really hard corners. And generally, run rich to account for poor fuel atomization. And just generally stink of gas. Yeah....
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Old 02-20-2019, 01:08 PM   #202
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This will be good. Keeping an eye on this.
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Old 02-20-2019, 02:36 PM   #203
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Quote:
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This will be awesome. Congrats on building the perfect 122.
You already did that IMO
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Old 02-20-2019, 02:42 PM   #204
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Quote:
Originally Posted by JohnMc View Post
All the snorty sounds, without the fiddly metal bits to do the tuning.

As far as reliable, though? Dunno, since the DCOE's tuning is almost all 'hard coded' by swapping little metal bits around, the tune they're in seems to be pretty rock solid. Very few adjustments to wander off over time, they pretty much just always run the same. Unlike the SU's which needed fairly frequent twidling with to keep it running smoothly.

Of course, the DCOE's also go lean around left-hand corners, rich around right (or backward?) and sometimes slosh a little fuel out of the bowl vents in really hard corners. And generally, run rich to account for poor fuel atomization. And just generally stink of gas. Yeah....
That's part of the appeal. I honestly miss the smell of DCOE's walking into my garage right now.

Mike: interested to see how those play out for you. The brand definitely has a solid reputation, hopefully these will give you reliability.
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Old 02-20-2019, 05:47 PM   #205
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Fuel smell was pretty, bad. Reliability wasn’t horrible with the DCOEs. EFI was something I wanted to do on this car even before I bought the Weber’s, and I wish I had just done it originally. I kicked around doing the stock B20 intake. I sent one to NIW to have him weld in fuel bungs and fab up a fuel rail. If/when he finishes that up I might put that on, sell these jenveys, and turbo it, or maybe turbo it with the ITBs, or I won’t turbo it at all and keep the ITBs the way they are. We’ll see
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Old 02-20-2019, 06:02 PM   #206
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How do you manage fuel maps and injector flow on the Jenveys ? MS or are they pre-set ?
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Old 02-20-2019, 06:05 PM   #207
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It's really just a throttle body (with a hidden TPS) and pair of injectors. No electronics in them.
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Old 02-20-2019, 06:10 PM   #208
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How do you manage fuel maps and injector flow on the Jenveys ? MS or are they pre-set ?
I got a MS3 for it and will run alpha-N, COP using GM coils and CAS distributor adaptor

Here is an old, but basic VW thread on how to set up and tune ITBs using MS
https://www.clubgti.com/forums/index...ations.288322/

Last edited by MikeJr.; 02-20-2019 at 06:22 PM..
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Old 02-20-2019, 06:13 PM   #209
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It's really just a throttle body (with a hidden TPS) and pair of injectors. No electronics in them.
You are correct sir
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Old 02-20-2019, 06:28 PM   #210
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Now why on earth are you putting a power steering pump on your 122?
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Old 02-20-2019, 06:58 PM   #211
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because fat tires?
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Old 02-20-2019, 07:55 PM   #212
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Old 02-20-2019, 08:18 PM   #213
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what are the deetz on that rack?
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Old 02-20-2019, 08:45 PM   #214
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I got the idea from a swede that had put a rack and pinion in his 122











A rack was the route I wanted to go all along. It is a close ratio rack 2.7 lock to lock

Last edited by MikeJr.; 04-04-2019 at 09:16 AM..
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Old 02-20-2019, 09:04 PM   #215
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thats awesome.
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Old 02-21-2019, 12:40 AM   #216
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You gain bump steer
This steering rack is to long too. I did test it and....build it back and swaped to a power steering box.
Measure first next time.
Good luck, Kay
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Old 02-21-2019, 09:43 AM   #217
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You gain bump steer
This steering rack is to long too. I did test it and....build it back and swaped to a power steering box.
Measure first next time.
Good luck, Kay
Doesn’t the rack mount position in conjunction with the lower control arms dictate bump steer? If the tie rod is parallel with the lower control arm shouldn’t that eleminate/minimize bump steer?

I did measure the rack and I was actually worried it wasn’t long enough.

I’m going to give it a shot and see

Last edited by MikeJr.; 02-21-2019 at 09:52 AM..
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Old 02-21-2019, 10:17 AM   #218
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Quote:
Originally Posted by MikeJr. View Post
Doesn’t the rack mount position in conjunction with the lower control arms dictate bump steer? If the tie rod is parallel with the lower control arm shouldn’t that eleminate/minimize bump steer?

I did measure the rack and I was actually worried it wasn’t long enough.

I’m going to give it a shot and see
I think he may be talking about this:
Quote:
When designing a car, if the centerline of the outer tie rod lines up with the centerline of the lower ball joint, and the inter tie rod lines up with the lower pivot point then the length and angle of the tie rod and suspension will be the same resulting in zero bump. Most car builders design their cars in this fashion.
For citation purposes:
http://www.longacreracing.com/techni...aspx?item=8162

The rack body itself causes the inner tie rod point to be out further than the pivot point of the lower control arm (In can see it in one of the photos), but I am not familiar enough with the 1 series to comment on the upper control arm's pivot point.
That said, one man's bane is another's dream. It may be fine for you. You have gone this far, I agree you should try it at least.
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Old 02-21-2019, 10:29 AM   #219
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Quote:
Originally Posted by MikeJr. View Post
You already did that IMO
rough around the edges but it's slowly getting where I want it.
Quote:
Originally Posted by MikeJr. View Post
I got a MS3 for it and will run alpha-N, COP using GM coils and CAS distributor adaptor

Here is an old, but basic VW thread on how to set up and tune ITBs using MS
https://www.clubgti.com/forums/index...ations.288322/
Look into the ITB mode with MS3. It's what I'm on and has been treating me well so far.

I really need to address the steering in my car as well. I could really use the space where the box is along with curing my vague steering, I've been looking for a good manual rack option.
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Old 02-21-2019, 01:48 PM   #220
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I really need to address the steering in my car as well. I could really use the space where the box is along with curing my vague steering, I've been looking for a good manual rack option.
Same here. I think that is where I want to mount my GM coils. I’m going to give this rack a try and see what happens.

I can’t wait to start messing with the MS. I was going to hit you up anyway about MS and ITBs. Are you going to SE in April?
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Old 02-21-2019, 02:22 PM   #221
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Yeah I'm trying to get my stuff right so I can. I need to put my car on the dyno. Honestly though I was shocked how well the ITB setup worked out. I've done very little tuning and aside from an untuned accel enrich it runs pretty clean.
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Old 02-21-2019, 02:33 PM   #222
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Awesome work, keep us posted on how the power steering works for you. Trying to figure out a way to make steering a bit easier on our rallycross 122 running 195 tires.
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Old 02-25-2019, 06:31 PM   #223
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As much as I appreciate a good rack, a well rebuilt box on these is plenty. Even with the fat tires I had on my last Amazon, the box that Ian and Eric had rebuilt was perfect for it.
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Old 02-25-2019, 10:13 PM   #224
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As much as I appreciate a good rack, a well rebuilt box on these is plenty. Even with the fat tires I had on my last Amazon, the box that Ian and Eric had rebuilt was perfect for it.
And I might still go that route if this doesn’t work out, although my box is in pretty good shape. The car has less than 60k original miles on it.
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Old 03-05-2019, 06:07 PM   #225
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And I might still go that route if this doesn’t work out, although my box is in pretty good shape. The car has less than 60k original miles on it.
I feel the only real benefit to a steering rack in an Amazon is the elimination of the drag link and thus less pivot points. This should in turn make for more direct steering in addition to the removal of slop from a steering box, which even when adjusted properly needs some "slop" to operate correctly without binding the worm gear. In any case I'll keep watching this, curious to hear your impressions once it's in and on the road.
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