what's the biggest motor a YSI should be used on?

[93stangers]

My engine builder says a 383 and no bigger. He says anything bigger than a 383 stroker, the YSI will not be efficent. What do you guys think?

[BLOWNBY]

definitly can go bigger!

What are your plans and goals.

I plan to run the YSi or Novi 2000 on a 408 stroker....next!

[qwikstang]

It flows 1600 cfm. I've seen smaller blowers on bigger engines. I guess it just depends on how fast you want to go.

[93stangers]

I was thinking about going with a 434 man o war block, basic set up afr 225's with upgrades, canfield spyder intake, custom cam with high 600's lift, AEM......

I got a email forward to me by Mike Post (former renegade champ) He had a combo similiar to mine 434ci, tfs R heads and intake ported, ext and ran a 8.80 lauching at idle!!

I can't wait to get my car running.

[OLDHEAD]

I have one on a SBC 400 mild engine street car..3500#...Just drove to the track last week (I am 70 years old and I am carefull) with the boost down to 17#,a 2400 conv,3:50 rear,thru mufflers and street tires went a 1.55 in 60:laugh: :laugh: :laugh: :laugh: ,9.51 at 148.58...And I am sure it will go in the 8s....OLDHEAD

[mrtbolt64]

I have one on a SBC 400 mild engine street car..3500#...Just drove to the track last week (I am 70 years old and I am carefull) with the boost down to 17#,a 2400 conv,3:50 rear,thru mufflers and street tires went a 1.55 in 60:laugh: :laugh: :laugh: :laugh: ,9.51 at 148.58...And I am sure it will go in the 8s....OLDHEAD

I dont know which is more impressive.........running 9.51 @ 148 or being 70 and having the balls to run it.

[Greg D]

I have a YSI going on a 555" BBC. We'll let you know the dyno results in a few weeks. (We are expecting 1200+)

[OLDHEAD]

I am still 70,but turned 9.04 at 149 with a 1.32 in 60 ft.still driving my Malibu to the track and home......OLDHEAD:happy: :happy: :happy: :happy:

[87331ysi]

whats up guys,i'm new here,yo oldhead u RULE!!!!!!!!!

[OLDHEAD]

Make that 8.90 at 152.92,drive to and from the track...Look it you want to see it in black & white, go on genral talk on"godragracing.com" to for "oldhead goes 8.90"....OLDHEAD:D

[OLDHEAD]

Make that 8.90 at 152.92, you want to see it,go to "godragracing.com" under General Talk. OLDHEAD :D

[Greg D]

I have a YSI on a 555" BBC. It's really too small for that big of an engine, but it did make 1182 HP and 1142 torque. It's operating out of it's effeciency range when pullied to make serious boost on that big a motor.

[hardcore35th]

93stangers has $600 of my my money for weeks now for the black coupe seats and seatbelts he had listed. His phone is cut off, and he will not repl to any e- communications.