Yep , 350 at 15psi and 6500 rpm on pump gas, at this point there were huge sparks jumpin all over my lead coils and the motor did not want to rev anymore with a strong scent of gas and 10's on the wideband , the whole trailing ignition system also failed , the rpm signal to the dyno would go to 6K then disappear. I changed all my plug wires and put in new plugs and tried again , now the sparks were gone from the leading coils but were still there on the trails and the motor now revd up to about 7.5K under load then it began breaking up again , seems like my ignition system and tuner arent up to the task! . I'm now upgrading to an Autronic CDI and maybe 4 MSD HVC coils ........and a new tuner.

 

Great Idea... I can get you a great deal on an Autronic smc Sm2 or sm4. With the best tuner of autronic in the US.. Only he is in New York.

 

The 500R ignition made a huge difference on my car..

 

Thanks , I alreay have an SM2 (installed since christmas last year by me) and I just picked up the R500, all I need are good coils , what kind of coils do you use ?

 

I agree...350 @15psi doesn't sound like anything a single couldn't do.

GOOD LUCK!!

 

marcel,
glad to hear you have gotten it running....

the coils you want for your leading plugs are MSD #8253. go to Summit and compare the specs against anything... especially the spark duration.

i run two Jacobs FC3000 amps and two 8253 coils on my lead side. each plug has a coil and amp. i run the stock trail ignition.

howard coleman

 

Yes maybe but how soon ! , i have logged 22psi at just over 3000 RPM,s already .

 

now, that's what I like to hear!! That is insane!

 

Damn, that is what I call 'boost response'

 

Please share your setup. That is very very quick.

 

Marcel, I run 4 x Crane LX92 with my R500!

 

Search under his username, he has custom t25 twins i believe.

 

https://www.rx7club.com/single-turbo-rx-7s-23/some-pics-my-custom-twins-462274/

 

Nope , they are Garrett GT3071R's each good for 500 hp .

 

why not the PS92 coils ?

 

Thanks howard ,I'll check it out.


By the way , i also finished setting up the two step on the SM2 , at the lower limit ( 4500 rpm's ) I see 11psi boost !