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HKS Twin-power IGN amplifier

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Old 09-25-2007 | 09:50 AM
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HKS Twin-power IGN amplifier

After a massive 95rwKW was measured on my stock (auto) RX-8 I figured it was time to squeeze a few more neck-snapping KW from its quadruple ported engine.

So, since my partner uses it as the every-day family car for work, shopping etc. All mods need to be practical.

If you have an RX-8. You will gain from IGN upgrades.

Step - 1. Fit a grounding kit. Place the end terminals around the spark plugs & coil packs.

Step - 2. Upgrade IGN leads

Step - 3. Fit HKS DLI-II ignition amplifier



Made to suit the RX-8 with plug in harness, this modification is excellent . Simple to install & works straight away.

Best part is the "bum-in-seat" dyno telling me the 13B-MSP engine feels more responsive, more powerful & rev's cleaner. Meaning it's an easy 5+KW gain in power. The (obviously) better burn will be assisting with fuel consumption too.

Total cost of all the above is $600 as the HKS unit was purchased in (hardly) used condition.

Worthy upgrade for any FE RX-8 owner.

REgards
Old 09-25-2007 | 08:00 PM
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Hmmmmmm.........
 
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ooo ooo can I say "SE" not "FE" Joking...

I always thought these sorts of mods were pointless as the rotary engine has a very high ignition output anyway. Not saying that true, its just my udnerstanding. Am I right in saying its a fairly easy mod to removed and put back? Would you be up for a before and after dyno?

Cheers

Andrew
Old 09-26-2007 | 02:28 AM
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Prob time for me to put up the other Japanese translated graph up. HKS are doing a series of HKS product dissection of RX-8 on RX-7 magazine (Jap.)
Old 09-26-2007 | 02:50 AM
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when ever I disconnect my battery My car feels faster and smoother when it's reconnected.

I made my own home grounding kit from car audio wire 8ga and gold plated connectors. it seemed to be great until a week latter when it was back to normal. then I made a battery mount and since the battery was being disconnected and connected all the time I felt the same "improvement" as the grounding leads.
Old 09-27-2007 | 07:58 PM
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Hmmmmmm.........
 
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Dmrh?
Old 09-29-2007 | 03:07 AM
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So what phyiscally does it do? What is lacking in the factory setup that this improves upon?

Cheers,
Hymee.
Old 09-29-2007 | 03:20 AM
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Glad you asked that Hymee. I was wondering too but thought it was a dumb question, lol.
Old 09-29-2007 | 04:14 AM
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Hehehe. Whether I know the answer or not is irrelevant - but if the answer helps out everyone, then it is a good thing, right?
Old 09-29-2007 | 07:16 AM
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From HKS USA website

Twin Power Rotary (more)

The Twin Power ignition amplifier incorporates both the CDI and transistor method ignition to provide optimum spark duration and maximum voltage output, resulting in crisper throttle response and a smoother engine powerband. The CDI method, capacity discharge ignition, provides maximum voltage by transferring all stored energy in the capacitor to the ignition coil so that the ignition current can buildup quickly, thus making the Twin Power very effective in the higher revs where a normal spark would tend to diminish. This strong rapid spark prevents the high rpm ignition miss that reduces peak power. The transistorized method generates high voltage by using transistors to cut off current to the coil, thus allowing for a long energy discharge. This longer spark duration allows the Twin Power to improve lower RPM throttle response and torque. The combination of the CDI and the transistor method incorporates two distinct systems into one high performance unit, hence the designation of Twin Power. The Twin Power produces a spark output that is typically 1.5-2.5 stronger than of the stock ignition system and consumes about 35% less power input than other ignition amplifiers. Each compact and attractive Twin power unit is constructed of durable anodized aluminum and sealed to prevent corrosion from moisture. General wiring harnesses are included in each unit to aid in installation and mounting. Vehicle Specific wiring harnesses are also available for certain models to further aid in installations that require intricate integration.
Some Japanese dude dyno it and printed in the Japanese RX-7 magazine (the biggest rotary magazine in the country) - 8ps at the flywheel. Believe it or not.

The article says the same as above quote.

AND

Despite what other English speaking people in Japan says, the magazine also show some plugs for RX-8 and recommends to change every 5000km - 20000km. Go figure.
Old 09-29-2007 | 08:15 PM
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Taka,
Was this 8ps increase on an rx8 ?

Regards
Rexi
Old 09-30-2007 | 04:16 AM
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Yes. It was on a RX-8. The graph is 1 and a half inch, and I am not the mood to get anything from it.

The only difference is after 7500 and the difference is at 8500rpm. 8ps is at the flywheel. And from the engine power, it looks like the 4 pot RENESIS.
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