~400whp
#1
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Hi guys! I'm new here and would be delighted if you guys could help me out with my 400whp goal.
I drive a 91 na6. After searching on this forum, I found out that my goal can only be met with swapping a 1.8 and turbo charge it with one of those turbo kits in the market (correct me if i am wrong..). And I can't afford a v8 swap atm.
I am interested in the FMIIR kits, the hp gain seems so promising.
So, what are your opinion and suggestions to my problem?
Thanks in advance.
I drive a 91 na6. After searching on this forum, I found out that my goal can only be met with swapping a 1.8 and turbo charge it with one of those turbo kits in the market (correct me if i am wrong..). And I can't afford a v8 swap atm.
I am interested in the FMIIR kits, the hp gain seems so promising.
So, what are your opinion and suggestions to my problem?
Thanks in advance.
#2
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400whp you need to completely replace drivetrain, build the motor, and run a lot of boost. I estimate 8k at least.
If I was you I'd get arttech or absurdflow hotside parts,BW EFR turbo, build a motor with VVT, get XIDA CS, FM clutch, Reroute, maybe WI, and a rollbar.
There is a reason no one here runs 400whp (see failflora build thread). These motors can't handle that much power for very long. You'd be surprised how fast a 250whp miata is...and you won't be breaking 6 speeds.
If I was you I'd get arttech or absurdflow hotside parts,BW EFR turbo, build a motor with VVT, get XIDA CS, FM clutch, Reroute, maybe WI, and a rollbar.
There is a reason no one here runs 400whp (see failflora build thread). These motors can't handle that much power for very long. You'd be surprised how fast a 250whp miata is...and you won't be breaking 6 speeds.
#3
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It can also be done on a 1.6. You can achieve the same results on a 1.8 with lower boost settings and better spool.
On the 1.6, you need a big turbo (genuine Garrett 3076 or similar flowing turbo), header manifold, properly sized intercooler, cams, standalone ECU. I've tuned one and got 327 crank hp / 248 tq at 14psi and 407 crank hp / 340 crank tq at 26psi.
On the 1.6, you need a big turbo (genuine Garrett 3076 or similar flowing turbo), header manifold, properly sized intercooler, cams, standalone ECU. I've tuned one and got 327 crank hp / 248 tq at 14psi and 407 crank hp / 340 crank tq at 26psi.
#5
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Am I wrong in saying that if you can't afford a V8 swap, you can't afford 4 cylinder 400hp? Assuming you do all the installation work yourself on both, buy a used V8, and replace the transmission and diff on the 4 cylinder scenario just like the v8 swap. Don't think it can be, if it can, it'll be very close.
#6
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Why is 400whp your goal? Did you ever ride in a miata that makes 300whp? Hell, mine makes 200whp and it's respectively fast, 300whp is really fast. I'm talking fast as in, LS1 cars and new mustang 5.0's have a hard time competing with it.