# Racetronix 79# HI Inj!! **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [November 12, 2007, 8:08pm UTC](https://forums.speedlife.net/t/racetronix-79-hi-inj/38645 "2007-11-12T20:08:57Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![turbo\_ls1\_ss](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbo_ls1_ss/32/7303_2.png) [@turbo\_ls1\_ss](https://forums.speedlife.net/u/turbo_ls1_ss)\ **Post date:** [November 12, 2007, 8:08pm UTC](https://forums.speedlife.net/t/racetronix-79-hi-inj/38645/1 "2007-11-12T20:08:57Z")
[http://www.racetronix.com/01D129xFM.html](http://www.racetronix.com/01D129xFM.html) new from racetronix, 79# HIGH IMPEDENCE injectors. has anybody tried these? new era boys? do they tune nice? i think i just creamed my pants because i did NOT want to buy a driver box. i was just going to see how far my 60# injectors would take me boost referenced… we took 75rc’s for a spin and they didn’t seem to want to play nice ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [November 12, 2007, 8:32pm UTC](https://forums.speedlife.net/t/racetronix-79-hi-inj/38645/2 "2007-11-12T20:32:41Z")
Hmmm looks pretty interesting: > Specfications: > Static Flow Rate: 76.65 lb/hr = 9.67 g/s = 846 cc/min (+/-4%) > Dynamic Flow @ 2.5ms PW @ 100Hz: 16.88 mg/pulse +/-10% @ 2.5ms PW @ 100Hz > Coil Resistance: 12.2 Ohms (+/-0.35 Ohms) (This high-impedance injector will work with all factory ECM/PCM injector drivers) > Spray pattern: 3-Prong Cone > Body: Top-Feed EV1 Style Body > Factory fitted with Viton upper and lower o-rings > Grease supplied to lubricate o-rings prior to installation. > Dynamically flowed and grouped within 1% with Racetronix injector flow bench > Racetronix Part # L107 (Siemens FI114961 - Mototron INJ-GAS-006 - Accel 74620L - MSD/Edge 2030) > Static Flow Rate @ 43.5PSI (300kPa) w/Gas: 63.20 lb/hr = 668 cc/min = 475 g/min \* > Coil Resistance: 12 Ohms / High Impedance / High-Z(No ECM driver modifications required) > Gain: 0.11ms/mg > Offset: 0.055ms > Turn on time @ 14VDC: 1.14ms > Turn off time: 0.85ms @ 600KPa > Factory Tollerance: +/-6 % > Spray Pattern: Cone > Connector: Minitimer (Bosch EV1) > Delphi Part Number 17113742 (OE # 17104988) > Static Flow Rate @ 43.5 PSI (300KPa) = 75.0 lb/hr / 9.5 gm/sec / 788 cc/min > Static Flow Rate @ 58.0 PSI (400KPa) = 86.6 lb/hr / 11.0 gm/sec / 909 cc/min > Dynamic Flow Rate @ 43.5 PSI = 1.75 gm/pulse - 2.5ms pulse width and 10ms repetition rate > Coil Resistance: 2 Ohms / Low Impedance / Low-Z (Peak-hold ECM drivers or impedance converter required) > Cone Spray Angle - 22.5 degrees - single spray cone. Approximate cone angle for 90% of spray volume I think you would be better off with an impedance converter and low-z injectors (more current to move a heavy pintle/disc) which leads itself to faster opening and repition rates. ---
**Author:** ![1BADGPGT](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/1badgpgt/32/5123_2.png) [@1BADGPGT](https://forums.speedlife.net/u/1BADGPGT)\ **Post date:** [November 13, 2007, 7:06am UTC](https://forums.speedlife.net/t/racetronix-79-hi-inj/38645/3 "2007-11-13T07:06:15Z")
I would think it would matter more if he rev’d it into the high end of the 6500rpm range …plus. ---
**Author:** ![psychopjv](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/psychopjv/32/7251_2.png) [@psychopjv](https://forums.speedlife.net/u/psychopjv)\ **Post date:** [November 13, 2007, 1:45pm UTC](https://forums.speedlife.net/t/racetronix-79-hi-inj/38645/4 "2007-11-13T13:45:56Z")
[quote=“1BADGPGT,post:3,topic:38645"”] I would think it would matter more if he rev’d it into the high end of the 6500rpm range …plus. [/quote] he does… ---
**Author:** ![1BADGPGT](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/1badgpgt/32/5123_2.png) [@1BADGPGT](https://forums.speedlife.net/u/1BADGPGT)\ **Post date:** [November 13, 2007, 3:58pm UTC](https://forums.speedlife.net/t/racetronix-79-hi-inj/38645/5 "2007-11-13T15:58:01Z")
ok then…