ThreeTreeDog

Little backstory
Bought the car guy said had a swap recently, drove it a couple days and it was doing great as far as I could tell. Had horrible exhaust leaks, on the front collector there was a 2 inch pipe welded onto the front collector and filled in with tweld that slid inside a peice of 2.25 and the other end of that was slid over the stock size to the resonator. What I did was remove that front collector cut everything off welded a 2.5 to 2.25 reducer to it, added a flex pipe after that, cut out resonator and attached it to the y pipe. Started the car up let the water temp get to normal gave it a few revs to 4 k. Blew appex seals on front rotor...

Was there something that exhaust setup did? I wouldn't think so, other than the change in pressure from what the car got used to..

What do you think?

btw exhaust sounded so much better...for about 5 min anyway

Loki

iTrader: (1)

Y-pipe? There is no Y-pipe on this car, in stock form.
I'd be more looking at the recent rebuild. What all was replaced? Who did the work?

ThreeTreeDog

Its aftermarket Y behind the resonator to 2 mufflers for the dual "look"

ThreeTreeDog

No idea on the engine, they said it was recent but after getting it about halfway out, I don't think it was to recent (engine swap or a build). What I was worried about buying one of these with unknowns on the engine, but its cool I guess just bought a block with all new hard seals for 1200 as long as the midplate and front housing and front plate are ok I think I can get it back going soon..
It has white silicon on the engine plates.. Is that typically OEM?

200.mph

iTrader: (9)

It has white silicon on the engine plates.. Is that typically OEM?

between the housings and plates? no. the oil pan, yes

Ricky SE3P

iTrader: (10)

Pictures or videos please, cause its a bit hard to understand (language barrier?).
Seeing what you have going on might help

ThreeTreeDog

I can't login on my phone to get a pic, Ill hook the shop vac up to make sure the muffler system doesn't have a bunch of crap in them (pretty sure they dont as It was sounding awesome. Guy said they replaced the engine but Im thinking it was the previous owner to him, I saw his work..good god.. but I guess you have to start somewhere. If it was done by him/his friend there wouldn't be any matching bolts in things..

Mainly just wondering if there was any special consideration to backpressure with the renesis. Technically what I did should have reduced backpressure, and from what Ive gathered with a rotary, renesis in particular, the less the better?

Loki

iTrader: (1)

Nothing that would make the engine explode. It's really not that sensitive to exhaust changes (for better or for worse).

Sounds like a botched rebuild. Time for a fresh shart with a known good engine

I would just make sure everything around the engine works, like oil injection, ignition, etc, so your bew engine doesn't move in with the previous engine's killer.