stoph99 wrote:I have a question for you as the board's resident M20 booster. I've been reading lots of opinions online about the 524td exhaust manifold, mostly from e30 guys, who are quick to say it's a piece of shit. But my sense is that most of these guys seem to be slapping together shoddy systems (no turbo maps, little attention to fueling etc) and then blame the manifold as an easy target when their cars don't live up.
Didn't you used to run a td manifold? What's your opinion on flow, fitment (after notching and porting etc), and value? Good enough for a first setup?
The car made 360/430 SAE, 300/360 uncorrected with a european 524td manifold and a GT2871R .86. I used the particular manifold because it didn't have an EGR port. As it turned out it also came with a T25 flange. That worked out fine since Garrett makes some very capable T25 frame internally gated turbos.
I did do a shit load of porting on the manifold before bolting it on, but it will work. The fitment isn't great, but I'd say its good enough.
You dont know what you're talking about, you offer others terrible advice and you give people an attitude like you think you're the shit. Its a shame you had to bring this into yet another thread.
Stop being a fucking idiot and you wont catch so much shit.
No you argue with me, and the fact is when you call me out most of the time your wrong. First you were wrong about the BOV now you wanna argue with me about the twin scroll flange. Even though i've seen it on non twin scroll turbos, and it worked. So once again your ass is going to be wrong. Your the one who thinks hes on top of the world, and be a complete prick to everyone on the forum.
Scottinva wrote:No you argue with me, and the fact is when you call me out most of the time your wrong. First you were wrong about the BOV now you wanna argue with me about the twin scroll flange. Even though i've seen it on non twin scroll turbos, and it worked. So once again your ass is going to be wrong. Your the one who thinks hes on top of the world, and be a complete prick to everyone on the forum.
So when you're telling "grsmonkey" that he is experiencing compressor surge because you dont know what a BOV sounds like, how am I an asshole for calling you out? When you claim that your friend makes twin scroll manifolds and that it doesn't matter what kind of turbo you use on them, again, how am I the bad guy for calling you out? When you say you should be pulling timing out on a turbo motor past peak VE, when you say you should be running stoich up until exactly 100 kpa, at which point you need "drastically more fuel", how am I the bad guy?
Its one thing after another. And you make yourself look like a total jackass when you claim you work on hundreds of racecars and you're some kind of "tuning guru", while giving advice like that. Give me a fucking break dude.
Scottinva wrote:No you argue with me, and the fact is when you call me out most of the time your wrong. First you were wrong about the BOV now you wanna argue with me about the twin scroll flange. Even though i've seen it on non twin scroll turbos, and it worked. So once again your ass is going to be wrong. Your the one who thinks hes on top of the world, and be a complete prick to everyone on the forum.
So when you're telling "grsmonkey" that he is experiencing compressor surge because you dont know what a BOV sounds like, how am I an asshole for calling you out? When you claim that your friend makes twin scroll manifolds and that it doesn't matter what kind of turbo you use on them, again, how am I the bad guy for calling you out? When you say you should be pulling timing out on a turbo motor past peak VE, when you say you should be running stoich up until exactly 100 kpa, at which point you need "drastically more fuel", how am I the bad guy?
Its one thing after another. And you make yourself look like a total jackass when you claim you work on hundreds of racecars and you're some kind of "tuning guru", while giving advice like that. Give me a fucking break dude.
A bov is suppose to be a single loud burst of air, unless you are using the HKS. When you hear surging, it's generally compressor surge not a BOV. The twin scroll flange was used on a t4 turbo not any turbo made. I didn't say stoich until exactly 100kpa wtf, I read the post you were talking about and changed what I said so it was more clear. I only run stoich untill 60kpa where it tapers to 13.2 at 100kpa. I don't claim to be a tuning guru, I have shit to learn, especially about megasquirt. Go read tuning theory thread, I didn't say anything like what your saying. Everything I said there is true. You do need a lot more fuel under boost. You just look for reasons to put me out there, just so you can be a dick. I claimed I worked on that stuff, just so you would get off my ass, clearly that was a bad idea.
Scottinva wrote:
A bov is suppose to be a single loud burst of air, unless you are using the HKS. When you hear surging, it's generally compressor surge not a BOV. The twin scroll flange was used on a t4 turbo not any turbo made. I didn't say stoich until exactly 100kpa wtf. I only run stoich untill 60kpa getting near 13.5 at 100kpa. I don't claim to be a tuning guru, I have shit to learn especially about megasquirt. You do need more fuel under boost? You just look for reasons to put me out there, just so you can be a dick.
Look at you! You know how to search for videos with keywords! Maybe next time you should educate yourself before attempting to give unsolicited advice to someone who knows far more about turbos than you.
I'm not going to go back and quote your posts. I see you're already busy deleting them. It doesn't matter, everyone here that knows thier shit thinks you're a joke. The only reason I bother with it is for those that are actually trying to learn and reading through page after page in the archives. When you get some retard dishing out horrible advice it can be hard to figure things out.
I didn't say shit that made no sense. I didn't delete any posts, I saw a post that you mentioned, and I agreed what I was saying wasn't clear. I was far from flat out wrong like you say I was. It was one post. You put a lot of words in my mouth with stuff I never said. You have no idea what I know about turbos. I brought up the video so you could learn what compressor surge sounds like. I didn't have to do it for myself. Thanks have a nice day.
Oh lord now your upset, that I made the post more clear that I already pointed out, and your upset because I put the wrong word. Oh fuck, I most know nothing. Now your just finding petty shit wrong with what I said, trying to put me down. Just because someone challenged you, and both times I was right.
Scottinva wrote:
Your ignition advance will decrease with boost, and also decrease as engine RPM increases(under boost). Which is the opposite, if you are N/A.
Hmmm ignition decreases with boost, if you look across the rpm band the ignition will slightly decrease under the higher boost. When not under boost, as rpm increases so does ignition advance. I don't see how that needs editing. Next post?
Scottinva wrote:Hmmm ignition decreases with boost, if you look across the rpm band the ignition will slightly decrease under the higher boost. When not under boost, as rpm increases so does ignition advance. I don't see how that needs editing. Next post?
Scottinva wrote:...and also decrease as engine RPM increases(under boost). Which is the opposite, if you are N/A.
In all of the areas of my map that are tuned advance decreases near peak cylinder pressure and then is fed back in as rpm increases. You'll see a drop at 7k, but my hard fuel cut is at 6600, soft at 6400 so it doesn't reach it. Is it possible I could stand a bit more advance, maybe, but the theory and trend is sound.
Those are severely out of date. I dont do a whole lot of street racing these days though, other than what I happen to stumble upon.
If an e28 with this power level should be trapping ~120, the car should pull a 600cc sportbike up here. A friend of mine was trapping 117 on his R6S, for example. That'd be a cool video...
turbodan wrote:Those are severely out of date. I dont do a whole lot of street racing these days though, other than what I happen to stumble upon.
If an e28 with this power level should be trapping ~120, the car should pull a 600cc sportbike up here. A friend of mine was trapping 117 on his R6S, for example. That'd be a cool video...
Mine e28 with 392/441 trapped a best of 119.72mph. I figure your car is a bit lighter so maybe 117/118?
