Subject	How much boost were you running on race gas?
Posted by	Denis on January 19, 2023 at 11:20 AM
	This message has been viewed 256 times.
In Reply To	Sounds very interesting to me. posted by Boosted1 on January 19, 2023 at 04:40 AM
Message	I have sport 550's, run race gas (100 octane) @ 20psi. I have a Knock Meter and as boost rises the bar graph just touches yellow, which I attribute to engine noise from the Ross racing pistons. I am just under 500whp and I am exhaust constrained, which means my boost does not build as fast as the pressure rises.
Follow Ups	CZP's new cast Bellmouth DPs... Thoughts? - KevinsFairlady 11:01:03 01/16/23 no 4 bolt, no care. (n/m) - Adam (NoVA) 13:12:04 01/16/23 "period correct" (n/m) - Zeus 11:59:17 01/17/23 They look alright - Drk93TT 14:39:00 01/16/23 Cost seems a bit high. They're a much less labor-intensive - Woodnutz (PA) 12:30:41 01/18/23 I was thinking the same, however it's probably reflective of - black300zx 14:29:36 01/18/23 Current SZ prices are in the same neighborhood. (n/m) - Denis 16:11:51 01/18/23 Sounds very interesting to me. - Boosted1 04:40:06 01/19/23 Interesting - Drk93TT 08:24:48 01/19/23 It was years ago so i don't have the dyno - Boosted1 18:12:44 01/19/23 How much boost were you running on race gas? - Denis 11:20:21 01/19/23 I'd have to go back and look, but I think it was just - Boosted1 18:14:35 01/19/23 Agreed. I experienced boost creep on the dyno - MixManMash 13:14:33 01/19/23 Have you ever used all 815? (n/m) - Mike@ZSpeed 14:09:59 01/19/23 Nope. It's completely useless. If you put your foot into - MixManMash 15:15:17 01/19/23 My RE71Rs were soooo noisy driving around - Drk93TT 06:14:05 01/20/23 Can't hear tire noise over the sound of the exhaust. (n/m) - MixManMash 09:09:26 01/20/23 I have bellmouth design / style right now - not the CZP - The Devils Z 12:45:12 01/20/23 Re: boost creep - NUTTZ 18:37:59 01/20/23 I'm running 2. 1 per turbo. (n/m) - MixManMash 01:26:12 01/21/23 That is an interesting topic. - Boosted1 13:07:21 01/21/23 That was my thinking on - Boosted1 12:24:38 01/21/23 I tend to agree with your list with small changes - ConVerTT 12:32:39 01/21/23 Funny you mention expansion DP & 3" to 2.5" exhaust - Boosted1 12:55:36 01/21/23 And i will also add, - Boosted1 13:01:33 01/21/23 Agreed. I think we’re trying to do the same thing… - ConVerTT 13:13:01 01/21/23 I think you're going to notice that trend reversing. As we - Inzane 15:38:17 01/23/23 I am with Kent - Denis 23:51:08 01/23/23 I agree with your conclusions - ConVerTT 12:40:23 01/21/23
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