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HKS TwinPower Installed

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Old Jul 23, 2005 | 07:40 AM
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Thumbs up HKS TwinPower Installed

YAY!

Today I got my HKS Twin Power which I bought from bplo (Brett) and installed it.
Install didnt take only 5mins as some suggest, but rather all-in-all about 1hour.
Most of it was removing the elbow and getting the stock connector to disconnect.

I installed next to the driver side upper strut mount. I had to remove my cruise control cable though (I dont have cruise control since I installed my Momo steering wheel).

Anyway, I went for a test drive at 10psi and immediately noticed more low end torque.
There is also much less backfiring when letting off the throttle after going WOT.

The real test was by setting my ProfecB to high boost setting - 13psi.
OMG, OMG, OMG

No more hestitation or breakup, just raw power!
This is too fast for the streets

Anyway, this must've been the best $370 spent on the car.

I love it.
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Old Jul 23, 2005 | 09:28 AM
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me thinks i shall have to buy one of these after hearing all these great things about the twinpower lately.
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Old Jul 23, 2005 | 09:59 AM
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Cruiser, I'm glad to hear it worked out great I remember I was getting a lot of breakup up top. Slapped that gold box on, and poof....car was pullin harder than ever before. And the funny thing is, that's completely untuned (as most ppl due). You can actually tune for it to make more power

The HKS Twin Power was def. one of the best mods for my car, hands down. Lil Red, it won't help much - or be useful at that - if your car isn't heavily modified, at wihch point you're just not getting enough spark, and hence the breakup at higher rpm. So just make sure you need it before you buy it, unless you just want a $400 shiny box in the engine bay
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Old Jul 23, 2005 | 10:12 AM
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I had it and I loved it. I gained around 25 hp just by bolting this thing up to my old setup with t78 and power fc. It cleared up any and all ignition breakup and the car pulled like an animal. Now i am running microtech with aftermarket coils and microtech's x4 ignition box. The hks twin power was definately one of the best spendings that i did for my car back then.

Adam
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Old Jul 23, 2005 | 11:06 AM
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Lil Red, it won't help much - or be useful at that - if your car isn't heavily modified, at wihch point you're just not getting enough spark, and hence the breakup at higher rpm. So just make sure you need it before you buy it, unless you just want a $400 shiny box in the engine bay [/QUOTE]

Why? The only difference is Cruiser has a remapped ECU. Just curious.
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Old Jul 23, 2005 | 11:48 AM
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TP will chew through plugs at an frightening rate (even more than a standard FD, which can be as little as 7k miles!!!)

I still say Desno racing iridiums are the way to go....much better spark AND better longevity....try that first
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Old Jul 23, 2005 | 11:59 AM
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Originally Posted by cruiser
YAY!

Today I got my HKS Twin Power which I bought from bplo (Brett) and installed it.
Install didnt take only 5mins as some suggest, but rather all-in-all about 1hour.
Most of it was removing the elbow and getting the stock connector to disconnect.

I installed next to the driver side upper strut mount. I had to remove my cruise control cable though (I dont have cruise control since I installed my Momo steering wheel).

Anyway, I went for a test drive at 10psi and immediately noticed more low end torque.
There is also much less backfiring when letting off the throttle after going WOT.

The real test was by setting my ProfecB to high boost setting - 13psi.
OMG, OMG, OMG

No more hestitation or breakup, just raw power!
This is too fast for the streets

Anyway, this must've been the best $370 spent on the car.

I love it.
Do some more mods. and turn the boost to 15psi...See how that feels on the street!
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Old Jul 23, 2005 | 01:14 PM
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hey fd newbie if you check out my sig, it lists my mods, I pretty much have every bolt on for my 7. besides just like dgblk93 said, the only difference between my car and cruisers is a reflashed ecu.
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Old Jul 23, 2005 | 01:28 PM
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I put one in last week, and I am very pleased with the performance. There was a noticeable difference in all rpm ranges and all load levels from idle to WOT. The breakup I had experienced at high rpms is gone as well. Seems that there have been a lot of opinions stating that the device is not effective unless you have a heavily modded car. My car is not heavily modded and for my particular setup the twin power exceeded my expectations for performance with smooth consistent reliable power delivery.
chuck
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Old Jul 23, 2005 | 01:38 PM
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heavily modded or not, FDs run pig rich....they need to do that to stay alive, and rotaries, like a two stroke, also spew out an amazing mass of unburned fuel

suffice it to say a rotary will never achieve ultra low emissions rating, ha....except Mazda's hydrogen concept
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Old Jul 23, 2005 | 01:42 PM
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wow u want one... if u get the hks TT how many CC's injectors should u run?
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Old Jul 23, 2005 | 08:00 PM
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Upgrading fuel system only matters if the old fuel system's efficiency has been maxed out or close to being maxed out. Ex: 85-95% injector duty on the PFC. Just because you have the HKS TP does not mean fuel upgrades.
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Old Jul 23, 2005 | 09:56 PM
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Originally Posted by DGblk93
Why? The only difference is Cruiser has a remapped ECU. Just curious.
I honestly didn't even look at Cruiser's mod list, or Lil Rex's. I was just saying it as a general statement, because some ppl think oh this works, lemme get it. It'll only help if you NEED it. Example...would you upgrade your fuel rail and injectors if you were running stock twins? Sure it's a great mod to have for more power, but is it necessary for a setup w/ stock twins? No. So in that case, you're wasting your money.

In short, all I'm saying is, unless you're actually getting breakup at high rpm, I don't think you NEED the ignition amp. $400 ain't chump change, so I'd spend it in more important things until it's needed. Is that a bit clearer?

92 FD, you're def. right. She goes through plus almost as fast as oil filters lol. I change my plugs practically every other oil change (which is 5K miles, or at this rate, twice a year lol). It makes a WORLD of difference.

Oh and Lil Red, I'm pretty sure there a few more bolt-ons that you don't have. Took a quick peek, and I have some that you haven't mentioned. BTW, what's a midpipe w/ a high flow cat? It's just a high flow cat... (and on that note, there's a WORLD of difference between a MP and a cat...both in performance and in reliability. It's prob the one bolt-on mod that you'll feel the biggest difference from).

Last edited by FDNewbie; Jul 23, 2005 at 09:58 PM.
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Old Jul 23, 2005 | 10:17 PM
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Nicely said! Possitive rep. point from me.
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Old Jul 23, 2005 | 10:44 PM
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Originally Posted by Spirit_Rotary_7
Nicely said! Possitive rep. point from me.
Thanks You just got 8 points back from me
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Old Jul 24, 2005 | 05:06 AM
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Originally Posted by G's 3rd Gen
Do some more mods. and turn the boost to 15psi...See how that feels on the street!
I think I''m done with tuning.
Next logical step would be PFC and upgraded injectors.
But thats a large amount of $$$ for additional 1 or 2psi, plus there's no rotary tuner around.

For a weekend warrior and occasional tracker its great.

Single turbo ? No friggin' way, stock sequential system is great when its working
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Old Jul 24, 2005 | 05:07 AM
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Originally Posted by Lil Red 7
hey fd newbie if you check out my sig, it lists my mods, I pretty much have every bolt on for my 7. besides just like dgblk93 said, the only difference between my car and cruisers is a reflashed ecu.
My car already pulled great at 10psi and had no ignition breakup. Hesitation started once I got up to 12psi or further. I was easily loosing like 40hp (10psi vs 13psi).
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Old Jul 24, 2005 | 05:44 AM
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Thanks for info.I hope the hks TP works as well with my stage 3 m2 ecu as a untuned pfc.
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Old Jul 24, 2005 | 05:49 AM
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Crusier,

Glad to hear you solved you ignition break up. I'm with you. I love the sequential setup too.
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Old Jul 24, 2005 | 07:44 AM
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Originally Posted by coolvette
Thanks for info.I hope the hks TP works as well with my stage 3 m2 ecu as a untuned pfc.
Ofcourse. This is what I have + all other bolrons, except pullies and flywheel.
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Old Jul 24, 2005 | 10:45 AM
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coolvette, it will. I had a M2 stage 3 ecu and added the hks twin power and it it cleaned up my highend miss I was getting with it on 12 to 13 psi with the stage 3. It also added 8 rwhp and 19 ft/lb of torque. The entire HP curve was shifted upward, not just an increase in peak numbers.


Tim
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Old Jul 24, 2005 | 10:55 AM
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Originally Posted by cruiser
My car already pulled great at 10psi and had no ignition breakup. Hesitation started once I got up to 12psi or further. I was easily loosing like 40hp (10psi vs 13psi).
That's really the main thing I was referring to. When did I get breakup? I already had all the bolt-ons (including pulleys and flywheel), but was only running 11ish psi, untuned. When I was tuned for 13 psi, the car pulled hard as hell, but all I got was breakup at high end. That's pretty much when you need it.

Cruiser, I'm w/ you on the twins all the way!

The pulleys you can really do w/o btw...it's no big deal. Plus, if you have a lot of audio stuff in the car, and don't drive it often (battery doesn't get fully recharged all the time), it's prob not a good idea.

As for the flywheel, don't sleep on it man. A flywheel is BANK when it comes to accelerating and decelerating. Check this out (solid facts) from this thread: https://www.rx7club.com/showthread.p...7&page=2&pp=15, post 17

Originally Posted by rynberg
That is not correct. The engine must spend energy to rotate the flywheel. A lighter flywheel or one with more of the mass towards the center will require less energy to rotate. The effect is more hp to the wheels. Max Cooper did some research and calculated that you will get around 50 more hp to the wheels in 1st gear, around 16 in 2nd gear, and neglible in the higher gears. It does not "feel" like more hp, it allows more horsepower to the wheels -- less drivelines loss.

http://www.maxcooper.com/rx7/parts_i...heel/index.htm
FIFTY HP IN 1ST!! That's the main reason why my FD, which makes only 8-9 psi vacuum @ idle (ie tired engine) pulls like a bat outta hell in the lower gears. The only prob is, lightened flywheels are a PIIA to drive around w/ if you hit a lot of traffic and a lot of hills. It REALLY sucks on hills. Really. But for the acceleration you get, I can deal w/ it Oh that, and the labor involved. I'd save this mod for when you're dropping the tranny anyways. Fix the 5th gear synchro, change the tranny fluid, fix any sensors on the tranny, change the clutch and both throwout bearing and pilot bearing, change the clutch fork w/ the new stronger fork from Mazda ($65), and put the flywheel on.

Last edited by FDNewbie; Jul 24, 2005 at 10:59 AM.
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Old Jul 24, 2005 | 12:33 PM
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im thinking that i must get one myself hmmmmmmmmmm sounds good guys keep up the good work
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Old Jul 24, 2005 | 03:43 PM
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FDNewbie.... dont dont please dont Dont lure me into another mods.
I am thinking of a lifht flywheel for a long time, especially due to the poor engine response (compared to my ITR) when I blip the throttle for downshifts.
Oh wel... we'll see
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Old Jul 24, 2005 | 03:50 PM
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Here is the pics of where I installed it. Sorry for crappy phone camera pic, I may take another with a digital camera if anyone wants to see it more clearly.


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