TTC

Weird, it looks so much bigger than my manifold, i guess its just cause the manifold itself is smaller.

myAE86turbo

how did u determine the lack of flow on 2?

Tom-Guy

Look at one sometime.

t_cel_t

well actually 2 and 3 are restrictive becuse of the studs that hold the turbo to the manifold. also the 4efte will always crack the #2 or 3 piston, rarely 1 or 4.

Tom-Guy

That's an odd thing to happen to the cyls that flow the poorest, as they get the richest mixtures and the most conservative timing. The tunes must be completely off - #1 or #4 is pinging causing the ECU to pull so much timing it's in a knock feedback loop that overheats the piston, exhaust valve going thermonuclear and becoming a hotspot for pre-ignition - or there's a SB2/LT1 like problem where the inner bores aren't clearanced as big from the factory as the outer ones.

myAE86turbo

well has anyone ever ported or honed the restrictive runner to somewhat keep up with the others? would it make a difference? i ask because i have a new cast manny for my corolla and it doesn't look too flowy on number 2

jabbersd

yes people port them to try and sort it out.

assh0l3

Yeah, I meant 5EFE.... proofreading owns me

I dont think there'd be a hope in hell of getting even 2 of those bolt holes to line up on an S series.

As far as the restriction, yeah, just look inside the runners.

JD, what your saying sounds the most logical. It seems like the problems occur when people crank that ---- up. It would make sense that the ECU wants to pull more timing (based on 1 and 4) causing the issue on 2 and 3. Seems to me that issue would be more pronounced with higher boost levels.

I hadnt really thought of it like that before (i just heard it was an issue) , but it makes good sense.

Tom-Guy

Most Toyota people I meet are drivers and enthusiasts, seldom wrenches and never electronics savants. Given what the MR2 community holds up as it's prize members - Ricky B with his abortion of an EMS, and noshoes with his double standards and cluelessness on basic levels, others - and that the St00pra crowd is a bunch of moneybags with no fundamental understanding and a basic ASSumption that the more it costs the better it is; the tech information distribution network for the backyard Toyota enthusiast is crippled. I'm not surprised people are stumbling over basic ---- like which cylinder is weakest, and why, with high profile douchenozzles like that distracting everyone from real tech. That's sad because the average Toyota guy isn't a n assclown like Evo, Scooby, Honduh, or V8 *******.

assh0l3

Yeah, theres not NEARLY as much informations as there is for Honda.

----, when I put together my ghetto as ---- Tercel, all I heard was "it cant be done, impossible, it'l blow up". Im not sayign it was a crown jewel as a technical acheivment or anything, but anything technical like came from here. The Toyota comunity didnt have a clue. "Swap a 4EFTE" "You have to take it to BYP", thats about it.

p.s. Dont worry, Toyota has its fair share of assclown too