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i wasn't planning on running methanol but I do want to keep the bottom end alive. Casey from Huron Speed already said he can hook me up with a smokin deal on a shortblock through Thompson Motorsports but our plan now doesn't include a motor right now. What's the best kit to run and how is that activated? Boost activation? How long does the methanol last? Like a gallon a month kind of thing? It's totally new to me.
The car is getting all new suspension,steering components, brakes, hub assemblies while its apart for the turbo build. The process is taking quite some time but it'll be like a whole new car when it's done. Got a couple more pics...
She's hiding down in there! Radiator and condenser stay in stock position amazingly and the turbo fits! Don't have the new radiator shroud on yet.
washer fluid meth content varies around 35-44% iirc. Each washer fluid is different and may even vary bottle to bottle.
I am under the impression that the most common way to use washer fluid is to mix it with "heet" which has a higher concentration methanol (it might be 98% or something). I have seen folks mix 4 bottles of "heet" with 1 full washer fluid bottle to get a higher % methanol concentration final result.
As far as boost, compression, methanol is concerned, if you are looking for the reason why you need the methanol with higher compression, think about how close the engine is to the threshold of detonation without the boost. In other words, before FI, the boost is essentially "0psi" from our reference point of atmospheric pressure. If you are using 93 octane and 0psi of boost and you are right there on the threshold already... then adding a single psi of boost is going to push it over the edge. Thats why you need the methanol/water, it will cool the reaction down and prevent it from becoming an explosive/sudden burst that is associated with broken pistons/blown head gaskets and so forth. The closer the engine was to the threshold to begin with (imagine you try 10:1, 11:1, 11.5:1 and 12:1, and found that 12:1 only works on 50*F days, 11.5:1 only works on 70*F days, and 11.2: works until 100*F etc...) Notice each compression ratio has a different threshold for temperature with respect to that particular vehicle (vehicles differ in their under hood temps and how the temp rise is controlled. More blankets, coatings, wrapping, will help control temperature and is highly recommended and beneficial to turbo setups). The closer you start to that threshold the less boost you can use (boost raises compression ratio, so if it's already 'there' you have no headroom for more)
I really didn't think meth was needed right now but all you guys are saying it's needed for sure. Just to explore all options, can my tuner just tune the afr's rediculously rich and keep the timing super low to keep things safe enough so that meth is not needed? Option 2, I do have e85 available to me but now the question is, are my 60lb injectors and single 450lph pump enough to run the car on e85? I'm just exploring all possible options right now.
From: Saskatchewan, Canada - where arguing "DA" is for the slow and weak...
High static compression isn't a problem; high dynamic compression is. I currently have a D1SC Procharged stock LS2 (LS9 cam) running on 40% ethanol mixed into 94 octane gas, and propane injection. It is at 10-11psi w/10-11* timing.
I really didn't think meth was needed right now but all you guys are saying it's needed for sure. Just to explore all options, can my tuner just tune the afr's rediculously rich and keep the timing super low to keep things safe enough so that meth is not needed? Option 2, I do have e85 available to me but now the question is, are my 60lb injectors and single 450lph pump enough to run the car on e85? I'm just exploring all possible options right now.
youd probably want to got the e85 route then because when you run a tune that rich for too long thats when you can pop a ringland
I ran my stock bottom end with a t76 and 7psi at about 11* of timing and it ran great, but only ran it for about 10k miles
From: Saskatchewan, Canada - where arguing "DA" is for the slow and weak...
Originally Posted by aaronware76
I really didn't think meth was needed right now but all you guys are saying it's needed for sure. Just to explore all options, can my tuner just tune the afr's rediculously rich and keep the timing super low to keep things safe enough so that meth is not needed?
No. Being too rich can cause knock too. And that will make the engine really lazy.
Option 2, I do have e85 available to me but now the question is, are my 60lb injectors and single 450lph pump enough to run the car on e85? I'm just exploring all possible options right now.
Maybe? It is unlikely that 60s would flow enough on E85 for any significant power level. 80s will be your minimum.
I have 60s in my LS2 and with 40% ethanol I am at 85-95% IDC depending how much propane I am spraying under load. The same would apply with a meth kit, you could run the 60s and saturate the engine under positive manifold pressure to make up the difference.
Looks like a nice build and a nice turbo setup from Huron.
I'm interested to see how the 11:1 works on a turbo street car. Should be a bunch of fun. I can tell you that compression (granted it tightens the tuning window) will make more power and be much more responsive.
What engine management software are you going with?
I'm running a T7875 right now and its a beast. Turbine is loud AF and spools quickly but also linear unlike the smaller TC78. Throw some 317's on it and drop the compression a hair then boost away lol. Rawr on here is making almost 750 wheel on his sbe ls1 with 317's so there's no reason you can't either.
Looks like a nice build and a nice turbo setup from Huron.
I'm interested to see how the 11:1 works on a turbo street car. Should be a bunch of fun. I can tell you that compression (granted it tightens the tuning window) will make more power and be much more responsive.
What engine management software are you going with?
Thanks. It'll be a handful for sure. Just got some M&H 325/45/17 drag radials for my ws6 wheels in anticipation of lots of power. Tuning will be with the most recent version of HP Tuners.
I'm running a T7875 right now and its a beast. Turbine is loud AF and spools quickly but also linear unlike the smaller TC78. Throw some 317's on it and drop the compression a hair then boost away lol. Rawr on here is making almost 750 wheel on his sbe ls1 with 317's so there's no reason you can't either.
Loud is good. I wanna hear that turbo spool! I should still have a nice lope to the exhaust due to the V3 cam also. I heard the TC 78 falls off up top and the 7875 solves that issue. I'm expecting some really good performance out of this combo with the higher compression. Although I may have to run a meth kit because of it.
It'll make more power with less boost with the higher CR number.
you're right it will. Gonna keep the motor as is and I just picked up a methanol injection kit. Seems to be the best way to go. I talked to my tuner and he said a 50/50 mix should be good enough. Although I have no issue raising the meth concentration if need be. The car should get on the rollers late this week I'm hoping.
Thanks for the support, we appreciate it! You are doing a very nice job on the install. Thanks again and enjoy!!
Anytime! Just to update, the car made it over to my tuner tonight. He's gonna do some exhaust work for me then it's gonna hit the rollers sometime over the weekend I believe. It's got an AEM meth kit on it now and we're gonna try the 50/50 boost juice and see how it goes. As long as all is safe and timing is very conservative, we'll run it till 7-8 lbs maybe and see what it makes. I'm guessing 600-650 rwhp. I'll keep you guys updated for sure.
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