So, i think my wife just issued me a challenge. She's always wanted a mustang. Those have become quite $$$$. She admitted to me that she rather likes the coupe and that it could be a valid substitute. I told her that at the moment, there will be no ac due to space constraints for cooling. She didn't like that idea.
So today, i am going to see how far back i can get the engine is suppose. Experience with cv joint at extreme angles suggests they are much more tolerant that you'd think....i figure if i can get it back 30-40mm from where it is currently placed, i have a chance at a big radiator and ac fitting. Maybe even with the viscous fan??
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So, managed to score a gearbox spacer locally for peanuts and the engine mounts arrived last night. Son's birthday party tonight so no work will be done but i will have the day tomorrow and shpuld be able to get the mounts sorted. They are much more compact that the oe ones. I have no doubt they will transmit more nvh, but needs must. I am not completely insane and will not modify a frame rail to make it fit!Leave a comment:
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Welp, the engine offset is REALLY making this difficult. Broke out the ruler last night and have it down to within 5mm of "correct". ZERO room on passenger side.
I've ordered some generic chevy 350 mounts in hopes the packaging will be easier. I am still pretty sure it's all gonna land on the subframe instead of the frame rails but the different form factor may change that. The main concern is to get them as low as possible to stay away from the exhaust. Lotsa pics out there of melted poly mounts lol.
Damnit, not getting it mounted anytime soon. Light bulb turned on, do i need a transmission spacer? Asked seller of the engine and yes i do. To ebay i go. Two weeks shipping.... boo.
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Annnnd no way in hell the s6 rad works. Short of putting in single rounds from a mk1 golf, but i think that would look goofy as hell....
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Chopped the top off the middle of the subframe and now the only proper interferance is the coolqnt pipe on the right side tie rod.. part of me wonders if i have them on the wrong side, coulda sworn one has a bend. Need to look again before i start messin with the pipe. At any rate, need to confirm it some but i THINK it's in the right spot to start working on mounts. Need to pull it again though to clean up the remnents of the old mounts and to install the starter.
Sorta optimistic i can have it supported by the end of next weekend, it seems summer died today, actually only mid 20s in the forecast suddenly.....
edit: Triple checked tie rod, i have it right (shocking!). It's just bent in the wrong plane.... so i need to massage the cooling pipe a bit.Last edited by ottawa coupe; 18 August 2025, 10:46.Leave a comment:
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So, got into shop before the heat today. (34⁰ again yestersay!) And got to cuttin. How tight is a 40v in a b3? Yes.
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Resting on the subframe, oe mounts will not work as they rest on top of the front anti roll bar. The exhaust and coolant pipe are too close to steering arm for comfort (are the curved ones available like for v8 c4s?) And the timing cover contacts the core support. So first order of business is to get started on the engine side arms
did i predict tight? Yes. This tight? Nope lol. I suspect (hope) it will improve slightly when i get it a bit lower.Leave a comment:
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Wouldn't matter, v6 engine is gone. May the bridges you burn light your path forward!!!! I have a video of it running prior to stripping, sounded great. I'm not TOO concerned at the moment.
Besides, i can't do a compression test without it mounted securely, my stand ain't secure lol. And i don't have a leakdown tester that i could use on the stand.
Looking at parts diagrams, seems on a d2, the engine and trans are mounted to the front subframe. You guys think there's an issue with replicating that on a small chassis from a structural standpoint?Last edited by ottawa coupe; 17 August 2025, 11:04.Leave a comment:
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Maybe do a compression test on the engine before you cut your v6 mounts out
But I do love a V8
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I love audi lego
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Tried to toss it in the engine bay and as a surprise to no one, it didn't go. The mounts i made/modified to fit the v6 are totally in the way and nowhere near the right spot.
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They will be chopped tomorrow and i will start from a clean slate.
The s6 rad fits between the rails with room to spare. I will determine it's fate once the engine is in.Leave a comment:
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So, on the stand with the harness and intake removed. As expected, it'll need a full gasket kit. Just a bit gooey just about everywhere lol. I am somewhat concerned it's burning a bit of oil, the port on the right valve cover comoletely coked up. Fingers crossed this is a clogged oil control ring issue that can be soaked out over a coupla nights.
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And just holding the rad up in between the headlights suggests that if i say screw it and go with aero catches as opposed to the hood release and make a whole new structure, it is possible to fit it. I have 3 pairs of upper headlight mounts/hood latches so i definitely can try....Leave a comment:
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Grins in v8....
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It'd be on a stand but the pressure plate bolts are all stripped.....stupid socket heads.....
I am also CAUTIOUSLY optimistic that i can use the s6 rad....Leave a comment:
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Ug. Not sure if i am getting this engine or wtf is going on. Things keep "popping up" for the seller, fingers crossed by the end of the week.... if not there is a complete a6 4.2 available for not much more about 90mins from home. Whether it remains available past the weekend tho..... sure, not the big boy 360hp but still a V8 for the right price.
In the meantime, i have started scrubbing misc interior parts and going on a shopping spree on ebay. I must say i kinda hope talk in these parts of joining the EU picks up.... i am stuck for a rear center console in black. The part price is around 20€. Shipping in eu is 10. Shipping here is 170.... so ya, that's not happening.
Not much progress cuz DAMN hot and 700% humidity.... i HOPE to share pics of 4.2l of goodness on my engine stand this weekend....Leave a comment:
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Well, holding breath a bit longer as the seller is going to deliver it to me from toronto. But hotter than hell here and his van needs AC work, i will be patient. Haven't paid yet so no worries.
But the deal has gotten better i believe. The s6 engine had been in a crunch and the timing belt/cam gear took a knock. The internal condition is not 100% known. He happened to be parting a manual swapped d2 s8 as well. So for the same price, he's bringing that instead. 360hp now lol. Bonus, he's providing the clutch/flywheel assembly too. Hopefully only a couple more days....
Does anyone know how much a urs fuel pump can supply? I got into the tank yesterday and cleared out the varnish on the bottom. I have a used oe audi urs pump and a new vdo urs pump. Google suggests 380-400hp. Seems optimistic and not a large margin for the engine i am using. It'd be nice tho as it would slot right in.....Leave a comment:
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Welp, comittment made, admittedly not the one i was thinking a week ago as it seems i have been ghosted. I WAS gonna get an AAN to put in this. But i sent the message this morning to commit to buying a 4.2 from a C5 S6. 340hp loveliness. I will be achieving my midlife crisis goal of finally owning a v8 lol.
I have been scouring the internet over the past few days regarding how it will work electrically without canbus and and it seems i am down to one last question regarding auto vs manual program in the ecu. I have found someone locally who seems knowledgable about flashing in general, i think (he or i) just need to find the right file. Obviously due to the fab work required to get the engine fitted and solve the radiator issue (the oe MAY fit, depending on endtank size), i will have time to figure that out.
Details need to be worked out but i should have it in a week or so.
In the meantime, i will be pulling all of the sensors off the aah on my stand as most seem to be the same as the aan, so i'll have spares for my s6, although i'd REALLY like to find an iat to complete the set...Leave a comment:
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So, rough draft of the interior done. First lesson learned is that b3 seats aren't centered on the steering wheel....that's just how it is, deal with it. So i have centered the boxster seats as best i could and welded tabs onto the planted seat bracket to make it all work.
Because the mounting points in a boxster are level and the seat base here is tilted back, the seats are somewhat more reclined than they would be normally. I'm a tall guy though so it is more important my butt's down low. I may be able to further modify the base at the front though.
As for the carpet situation, i have recreated the false floor at end of the passenger footwell from the b4 so i can put my battery positive junction point there.
I have cut the cabrio and coupe carpets beneath the seats and will figure out how to neatly splice them later.
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And, if all goes well this coming weekend, paint will be delayed till next year as i will be diving back into some (a fair amount) of fabrication. Because why not go back on a decision i made on like the 3rd page of this thread
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