I was curious what the reality of this dream might be. I want to try and find a BEAMS head for the 3sgte. This is the head that runs VVTI at around 200hp NA. The reason I want this head is because I want to keep my car streetable but have some extra power and something that no mr2 owner has done yet. I have seen a couple of mr2s with this motor in it, but not with forced induction. I do understand that engines with VVTI are much harder to manage as far as tuning, and an aftermarket management system will almost be a must. Anything else that comes to mind as far as the difficulties or hurdles in a turbo beams project, let me know. I am very interested in seeing how the mr2 community feels about this.
I know it exists in other cars, but I meant in an MR2. I can only imagine how much harder it would be to fit a larger head in the mr2, AND turbocharge it. Thnx for the info though, I appreciate it.
That was 3sge. So, turboing it would be interesting.
It got higher CR than 3sgte.
and the red top BEAMS came from MR2, so it shouldn't have problem with clearance on the top
A 3s is a 3s is a 3s. a 3sge head should bolt to any 3s short block. For turboing I agree the pistons should be changed, but since I already have a brand new 3s bottom end, i'd rather use it with the oil cooling and whatnot already on it for turboing. I wouldn't get pistons until I recieved the head and determined what the compression ratio would be with certain pistons. But that shouldn;t vary much from a standard 3sgte anyways. My two biggest concerns are 1: finding a blacktop beams with duel vvti (they never came with lift....sucks ass) and 2: will the vvti system hold up to the added pressure of pulling 400hp+ from a turbo? Thats the biggest issue. The reason hondas have such a hard time turboing is partly due to the insane tuning needed with v-tec, and i am sure toyotas aren;t much easier. A stand alone EMS should help out a lot, but I am not familiar with them. By the time I start this project I hope the new Megasquirt 3 will be out n about as I am familiar with it.
A 3s is a 3s is a 3s. a 3sge head should bolt to any 3s short block. For turboing I agree the pistons should be changed, but since I already have a brand new 3s bottom end, i'd rather use it with the oil cooling and whatnot already on it for turboing. I wouldn't get pistons until I recieved the head and determined what the compression ratio would be with certain pistons. But that shouldn;t vary much from a standard 3sgte anyways. My two biggest concerns are 1: finding a blacktop beams with duel vvti (they never came with lift....sucks ass) and 2: will the vvti system hold up to the added pressure of pulling 400hp+ from a turbo? Thats the biggest issue. The reason hondas have such a hard time turboing is partly due to the insane tuning needed with v-tec, and i am sure toyotas aren;t much easier. A stand alone EMS should help out a lot, but I am not familiar with them. By the time I start this project I hope the new Megasquirt 3 will be out n about as I am familiar with it.
Peace
Not saying you're wrong. It'll be easier to get the complete engine first then look for the block when the head doesn't fit. If you want lift, get 2ZZ-GE.
Megasquirt 3 able to control VVTi? Its not like Vtec which activate at a fixed rpm.
its far more reliable to get a beams 3sge and turbo that.
even with the higher all moter compression, the beams itself is better built and you can look at around 350hp befor eyou need to touch the internals.
and whats with all the questions about vvt(l)i and turbo? its electronic, it doesnt matter. dont touch the vvt(l)i tuning. strengthen the hardware.
blacktops come from caldinas
be careful buying a blacktop, some places will just get the valve cover and put it on a redtop motor, so youll have the little feed gaps in the cover but nothing for them to go to.
the black/red top scenario is confusing.. its possible to get single vvti on a blacktop from earliest model caldinas too, so be careful.
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125 front wheel horsepower with major retard issues between 4500-5200RPM -
OD switched off, even when not in 3rd results in major power loss/rpm drop.
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