HKS twin power vs. Jacobs ignition
01-08-07, 11:16 PM
#1
ninja
Thread Starter
iTrader: (3)
Join Date: Aug 2005
Location: Statesville/Greensboro, NC
Posts: 1,192
Likes: 0
Received 0 Likes
on
0 Posts
HKS twin power vs. Jacobs ignition
Okay I am in need of an ignition system for my newly installed single turbo kit. I was initially going to buy an HKS twin power but came across a good deal on a Jacob's igition system. So my question is which of the two will you guys prefer and why? Thanks for any help.
Tony
Tony
01-08-07, 11:21 PM
#2
Original Gangster/Rotary!
iTrader: (213)
It's funny you ask, actually.
I'm currently running the older style jacobs rotary pro pack with an fc leading coil. I have a new twin power with harness sitting in the box in case I decide to try that route.
Based on last weekend, when I was driving the car hard at 15 psi, the jacobs is more than up to the task. Running 9s all around with water injection on, as long as my AFRs were above 11.0 on boost the car pulled smoothly. Come to think of it, my peak EGTs never went above 1200ish, which is pretty damn low for that boost level.
The HK$ makes for an easier/cleaner install, but I've been running jacobs boxes for going on 6 years now and I've been pretty happy with them. I know Howard Coleman is a big advocate of them, and you know how much power he's putting down
I'm currently running the older style jacobs rotary pro pack with an fc leading coil. I have a new twin power with harness sitting in the box in case I decide to try that route.
Based on last weekend, when I was driving the car hard at 15 psi, the jacobs is more than up to the task. Running 9s all around with water injection on, as long as my AFRs were above 11.0 on boost the car pulled smoothly. Come to think of it, my peak EGTs never went above 1200ish, which is pretty damn low for that boost level.
The HK$ makes for an easier/cleaner install, but I've been running jacobs boxes for going on 6 years now and I've been pretty happy with them. I know Howard Coleman is a big advocate of them, and you know how much power he's putting down
01-08-07, 11:26 PM
#3
ninja
Thread Starter
iTrader: (3)
Join Date: Aug 2005
Location: Statesville/Greensboro, NC
Posts: 1,192
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by GoodfellaFD3S
It's funny you ask, actually.
I'm currently running the older style jacobs rotary pro pack with an fc leading coil. I have a new twin power with harness sitting in the box in case I decide to try that route.
Based on last weekend, when I was driving the car hard at 15 psi, the jacobs is more than up to the task. Running 9s all around with water injection on, as long as my AFRs were above 11.0 on boost the car pulled smoothly. Come to think of it, my peak EGTs never went above 1200ish, which is pretty damn low for that boost level.
The HK$ makes for an easier/cleaner install, but I've been running jacobs boxes for going on 6 years now and I've been pretty happy with them. I know Howard Coleman is a big advocate of them, and you know how much power he's putting down
I'm currently running the older style jacobs rotary pro pack with an fc leading coil. I have a new twin power with harness sitting in the box in case I decide to try that route.
Based on last weekend, when I was driving the car hard at 15 psi, the jacobs is more than up to the task. Running 9s all around with water injection on, as long as my AFRs were above 11.0 on boost the car pulled smoothly. Come to think of it, my peak EGTs never went above 1200ish, which is pretty damn low for that boost level.
The HK$ makes for an easier/cleaner install, but I've been running jacobs boxes for going on 6 years now and I've been pretty happy with them. I know Howard Coleman is a big advocate of them, and you know how much power he's putting down
Any more suggestions???
01-09-07, 10:30 PM
#7
Trending Topics
04-08-07, 02:40 AM
#8
Full Member
Join Date: Sep 2006
Location: Ohio
Posts: 246
Likes: 0
Received 0 Likes
on
0 Posts
I searched and searched, honestly this is the most info I found on the HKS unit. I am wanting to build a HIGH horsepower FD. I am going to build a Half-bridge 45R, yes 45R. Would a twin power support up to 30 lbs with no break-up problems? Thanks guys, any and all input would be greatly apreciated!
Thanks in advance!
Ty
Thanks in advance!
Ty
04-08-07, 09:05 AM
#9
Original Gangster/Rotary!
iTrader: (213)
Originally Posted by Trjackson
I searched and searched, honestly this is the most info I found on the HKS unit. I am wanting to build a HIGH horsepower FD. I am going to build a Half-bridge 45R, yes 45R. Would a twin power support up to 30 lbs with no break-up problems? Thanks guys, any and all input would be greatly apreciated!
Thanks in advance!
Ty
Thanks in advance!
Ty
10-02-07, 12:59 PM
#19
silver ghost
iTrader: (11)
Join Date: Sep 2003
Location: Home of the Rolex 24
Posts: 3,061
Likes: 0
Received 5 Likes
on
5 Posts
Paying a few extra $ to get the plug in harness by far outweighs splicing. As for a retune it does create a hotter spark which will cause you to run a bit leaner. I would adjust the maps a bit. G
10-02-07, 02:08 PM
#20
When I datalog ignition breakup I find that the WB AFR readings jump around alot (rich and lean). Given this, I don't see how the map could be properly tuned to a target AFR with ignition breakup, in other words if you tuned it with ignition breakup how do you know if you are tuned to an AFR of 11 or say 11.4 until you fix the ignition and retest the AFR.
10-02-07, 03:16 PM
#21
Coyote
Join Date: Nov 2004
Location: Malta. Europe
Posts: 953
Likes: 0
Received 0 Likes
on
0 Posts
Well, i used the plug n play harness. I had got 3 brand new stock FD coils, series 7 issue. i believe the 2000 model.
The dwell times where increased:charge time to 3.88 ms and discharge to .88
Yes i was getting crazy AFRs and flame out of the cycle at RPM. reduced hall sensor clearance to 0.1cm. rpm pulled to red line, Beyond 13 psi i was getting ignition break up. With the TP, i got a clean pull to 9800rpm. boosting up to 20psi.
Now i used water injection, no issues. I did not check the voltage, actually i regret not checking that....
10-02-07, 03:24 PM
#22
Coyote
Join Date: Nov 2004
Location: Malta. Europe
Posts: 953
Likes: 0
Received 0 Likes
on
0 Posts
When I datalog ignition breakup I find that the WB AFR readings jump around alot (rich and lean). Given this, I don't see how the map could be properly tuned to a target AFR with ignition breakup, in other words if you tuned it with ignition breakup how do you know if you are tuned to an AFR of 11 or say 11.4 until you fix the ignition and retest the AFR.
Yes, you cannot tune, and if your break up is as severe as i experienced, your AFRs are out. Solve your break up. oh yes and i found to help my cause where the denso iridiums 31 leading and 27 trailing..... no idea the heat range .. should be 9s.... but don't quote me on that.... European standards crap
10-02-07, 04:24 PM
#23
My bad.. I have been wondering if one could run 2 twin powers together for even more spark? Thats what I was thinking on the above post... Duh..
Also I have very little knowledge on this subject so it may be a dumb question.. Anyone know the anwser??
If it did work would you burn out the coils?
