SKE Engine suggestions W/Twin Turbo
11-20-2013, 10:42 PM
#1
SKE Engine suggestions W/Twin Turbo Ok so Ive made my decision, Im going to use Erik W/SKE. We sat down and went through some engine options. I would like to share a few i am considering and see what you guys think.
Setup
1977 datsun 280Z (2700lbs)
01 LQ4 block
Non ported LS3 Heads
LS3 intake
92MM TB
TSP 228R .590/.590 114LSA
(2) master power T61's
injectors undetermined
T56
Goals
I really want to see 900RWHP some day but 800 is more realistic. No meth, no juice, pump gas only street car.. weekend warrior.. freeway queen.. she wont be at the track but twice a year, if that.
option 1: 9:5.1
370ci stock stroke
Manley h beam rods
Wiseco pistons
polished (balanced) stock LQ4 crank
option 2: 9:5.1
370ci stock stroke
Manley h beam rods
Wiesco pistons
Callies comp star crank
option 3:
390ci
manley H beam rods
wiesco pistons
Callies comp star crank
I dont particularly feel comfortable with the 402 stroker.. I prefer the short stroke high rev concept with such a light car. I dont really feel like the extra cubes are worth the risk associated with FI stroker motors. After all the car weights nothing.
Erik seems to think a polished factory crank is more than capable of handling even 1000rwhp with my setup what do you guys think?
Setup
1977 datsun 280Z (2700lbs)
01 LQ4 block
Non ported LS3 Heads
LS3 intake
92MM TB
TSP 228R .590/.590 114LSA
(2) master power T61's
injectors undetermined
T56
Goals
I really want to see 900RWHP some day but 800 is more realistic. No meth, no juice, pump gas only street car.. weekend warrior.. freeway queen.. she wont be at the track but twice a year, if that.
option 1: 9:5.1
370ci stock stroke
Manley h beam rods
Wiseco pistons
polished (balanced) stock LQ4 crank
option 2: 9:5.1
370ci stock stroke
Manley h beam rods
Wiesco pistons
Callies comp star crank
option 3:
390ci
manley H beam rods
wiesco pistons
Callies comp star crank
I dont particularly feel comfortable with the 402 stroker.. I prefer the short stroke high rev concept with such a light car. I dont really feel like the extra cubes are worth the risk associated with FI stroker motors. After all the car weights nothing.
Erik seems to think a polished factory crank is more than capable of handling even 1000rwhp with my setup what do you guys think?
11-20-2013, 11:09 PM
#3
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Option 1 for sure. Tried and true, cheaper, stock crank will take that all day. That's exactly what I run. 8k miles at at least 750whp now 900whp and 40 track passes. Still going strong. One thing I personally recommend is meth or race gas.
Your running twins so you might be ok but one bad tank at the track and its over quickly.
Your running twins so you might be ok but one bad tank at the track and its over quickly.
11-21-2013, 07:15 AM
#6
Honestly I think I down played my intentions with the car while talking to him. I think he feels im going to "cruise" it around a little more than I intend to
At the end of the day im not totally apposed to meth or E85 but what I want is a solid *** "reliable" 770-800RWHP street car on pump gas.
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11-21-2013, 07:55 AM
#8
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Im at 9.5 cr,i don't think you would notice a drivabilty issue at 9.0.
I melted 2 forged Motors chasing pump gas dreams. One went 10k miles at 675whp no issues. Then bad gas happened. I know it sounds cool to tell every one your one pump gas but its not worth it. Just get meth if you don't want to run e85.
I melted 2 forged Motors chasing pump gas dreams. One went 10k miles at 675whp no issues. Then bad gas happened. I know it sounds cool to tell every one your one pump gas but its not worth it. Just get meth if you don't want to run e85.
11-21-2013, 08:09 AM
#9
9 Second Club
Making 8-900hp from a 6.0 V8 with a little bit of boost is not pushing pump gas by any stretch of the imagination.
99% of the time I run my own car on pump gas only, only when I am racing do I bother with water/meth.
Because even on pump gas it has far more power than traction well beyond 100mph
The only engine reliability issues Ive had with my own, have been down to the water/meth system having problems ! So dont be fooled for one second thinking it adds safety. Yes it can add safety when it and everything else works, but generally it's being used as a band aid because the setup wasnt optimised for the fuel you intended to use in the first place.
I have never had any reliability issues when running pump gas only whether raced or not, and that's using same boost.
The biggest dangers you will have is opting for a CR that is too high, getting greedy with timing, again more of an issue if the CR is too high, because you'll never get near MBT, and if charge air cooling isnt efficient enough.
And I would say if you had two identical cars side by side one 8.5:1 and the other 9.5:1 you would stand almost no chance of telling which was which. Even more so if it had an auto trans which would add some mushiness to the power delivery anyway.
11-21-2013, 09:17 AM
#10
Ive built and tuned plenty of small 4cyl engines running 30psi boost and making 500hp that are totally reliable, daily driven and race cars, and a few V8 engines of my own in various configurations.
Making 8-900hp from a 6.0 V8 with a little bit of boost is not pushing pump gas by any stretch of the imagination.
99% of the time I run my own car on pump gas only, only when I am racing do I bother with water/meth.
Because even on pump gas it has far more power than traction well beyond 100mph
The only engine reliability issues Ive had with my own, have been down to the water/meth system having problems ! So dont be fooled for one second thinking it adds safety. Yes it can add safety when it and everything else works, but generally it's being used as a band aid because the setup wasnt optimised for the fuel you intended to use in the first place.
I have never had any reliability issues when running pump gas only whether raced or not, and that's using same boost.
The biggest dangers you will have is opting for a CR that is too high, getting greedy with timing, again more of an issue if the CR is too high, because you'll never get near MBT, and if charge air cooling isnt efficient enough.
And I would say if you had two identical cars side by side one 8.5:1 and the other 9.5:1 you would stand almost no chance of telling which was which. Even more so if it had an auto trans which would add some mushiness to the power delivery anyway.
Making 8-900hp from a 6.0 V8 with a little bit of boost is not pushing pump gas by any stretch of the imagination.
99% of the time I run my own car on pump gas only, only when I am racing do I bother with water/meth.
Because even on pump gas it has far more power than traction well beyond 100mph
The only engine reliability issues Ive had with my own, have been down to the water/meth system having problems ! So dont be fooled for one second thinking it adds safety. Yes it can add safety when it and everything else works, but generally it's being used as a band aid because the setup wasnt optimised for the fuel you intended to use in the first place.
I have never had any reliability issues when running pump gas only whether raced or not, and that's using same boost.
The biggest dangers you will have is opting for a CR that is too high, getting greedy with timing, again more of an issue if the CR is too high, because you'll never get near MBT, and if charge air cooling isnt efficient enough.
And I would say if you had two identical cars side by side one 8.5:1 and the other 9.5:1 you would stand almost no chance of telling which was which. Even more so if it had an auto trans which would add some mushiness to the power delivery anyway.
I see it as almost a no brainer to run lower compression if it will insure life of the motor.
My concerns re longevity, reliability, power in that order. I have read many a failed meth systems. The last thing I want to do is introduce another possible engine killer to the mix or even complicate things with it. I have a 600hp 7.3 truck and that doesn't even have meth.. just to much crap to deal with if you ask me. If it comes down to it ill just run E85
shes just a freeway queen anyways
11-23-2013, 07:55 PM
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What is your charge piping setup going to be? Intercooler? And if you have E85 local enough to you to not be an issue, I would recommend it along with an intercooler. That is, if your fuel system can accompany the extra volume needed to use E85. For 800-900+ RWHP goals, look into the double or triple in-tank walbro 340 pump setups. And since you haven't purchased injectors yet, research e85 friendly injectors that will flow what you need.
But that's only if you want to go the E85 route. It has very many benefits to help with cooling and longevity.
But that's only if you want to go the E85 route. It has very many benefits to help with cooling and longevity.
11-23-2013, 10:10 PM
#19
What is your charge piping setup going to be? Intercooler? And if you have E85 local enough to you to not be an issue, I would recommend it along with an intercooler. That is, if your fuel system can accompany the extra volume needed to use E85. For 800-900+ RWHP goals, look into the double or triple in-tank walbro 340 pump setups. And since you haven't purchased injectors yet, research e85 friendly injectors that will flow what you need.
But that's only if you want to go the E85 route. It has very many benefits to help with cooling and longevity.
But that's only if you want to go the E85 route. It has very many benefits to help with cooling and longevity.
11-23-2013, 10:13 PM
#20
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Keep us updated when the motor arrives and everything else