Dynatech stepped headers
Dynatech stepped headers How much will the dynatech stepped headers be worth over my Macs? My car has stage 2 heads and 232/232 .574/.574 w/ 114 lsa cam. Also how much do you think the a LS6 intake will be worth over the LS1?
Re: Dynatech stepped headers I'd keep 1-3/4" primary headers on a smaller cube motor. The stepped ones will tend to hurt torque output on a smaller motor that doesn't need them. MAC headers are not that bad at all once you get rid of the ball flanges and build a custom 3" Y-pipe for them.
The LS6 intake will most likely be worth 8-14 rwhp on a heads/cam 346ci setup. Every car is different, depends on the heads.
Tony
The LS6 intake will most likely be worth 8-14 rwhp on a heads/cam 346ci setup. Every car is different, depends on the heads.
Tony
Re: Dynatech stepped headers I'd go with a good set of single diameter LT's. Grotts if you can get them or FLP's. From what I've seen the stepped headers actually lose power over a set of 1 3/4" Grotts...
Shane
Shane
Re: Dynatech stepped headers Thanks for the info guys. Tony the car already has true 3" duals. Keep the replies coming! The reason I'm asking is that there is a GP going right now for the stepped headers for $450.00. Pretty damn good deal.
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Re: Dynatech stepped headers </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by XtraCajunSS:
<strong>I'd go with a good set of single diameter LT's. Grotts if you can get them or FLP's. From what I've seen the stepped headers actually lose power over a set of 1 3/4" Grotts...
Shane</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If you are talking about Jason's car, the steps should have had 3" collectors as well. Anybody can tell you that a 3.5" collector on a cam only 346 is ridiculous. JMHO.
<strong>I'd go with a good set of single diameter LT's. Grotts if you can get them or FLP's. From what I've seen the stepped headers actually lose power over a set of 1 3/4" Grotts...
Shane</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If you are talking about Jason's car, the steps should have had 3" collectors as well. Anybody can tell you that a 3.5" collector on a cam only 346 is ridiculous. JMHO.
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Re: Dynatech stepped headers I have the steps with custom 3" merge collectors and a true dual setup, check my sig for pics.
<small>[ June 28, 2002, 01:36 PM: Message edited by: TrahnZam WS6 ]</small>
<small>[ June 28, 2002, 01:36 PM: Message edited by: TrahnZam WS6 ]</small>
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Verdad Gallardo Re: Dynatech stepped headers </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by TrahnZam WS6:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by XtraCajunSS:
<strong>I'd go with a good set of single diameter LT's. Grotts if you can get them or FLP's. From what I've seen the stepped headers actually lose power over a set of 1 3/4" Grotts...
Shane</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If you are talking about Jason's car, the steps should have had 3" collectors as well. Anybody can tell you that a 3.5" collector on a cam only 346 is ridiculous. JMHO.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That test was with both the merge collectors and the straight collectors. He lost power with both setups.
BTW, that is a sweet color... <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Shane
<small>[ June 28, 2002, 01:49 PM: Message edited by: XtraCajunSS ]</small>
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by XtraCajunSS:
<strong>I'd go with a good set of single diameter LT's. Grotts if you can get them or FLP's. From what I've seen the stepped headers actually lose power over a set of 1 3/4" Grotts...
Shane</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If you are talking about Jason's car, the steps should have had 3" collectors as well. Anybody can tell you that a 3.5" collector on a cam only 346 is ridiculous. JMHO.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That test was with both the merge collectors and the straight collectors. He lost power with both setups.
BTW, that is a sweet color... <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Shane
<small>[ June 28, 2002, 01:49 PM: Message edited by: XtraCajunSS ]</small>
Re: Dynatech stepped headers I'd consider the stepped headers if your using a blower or n20, all motor youll probably lose power but with a blower or on the bottle i think youl gain over the single tubes
Re: Dynatech stepped headers Also I'm going with the 1 3/4" dynatech to a 3" collector -3" y-pipe 3 1/2" exit with removable cats to a replaceable straight through with a cut out in it, to a 3 1/2" muffler to a single 3 1/2" turn down at rear, I have a 98Z28 stock motor on n20 150 shot
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Re: Dynatech stepped headers </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> That test was with both the merge collectors and the straight collectors. He lost power with both setups.
BTW, that is a sweet color...
Shane
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Thanks Shane, it looks 100 times better in person! <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> And to clarify, this is what I was told the test was:
Grots with straight 3" collectors were 5 rwhp better than..
Dynatech steps with 3.5" merge collectors
This is what Jason told me, and we both agreed that the results were inconclusive because he used to large of a OD on the merge collector. Was I misinformed?
BTW, that is a sweet color...
Shane
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Thanks Shane, it looks 100 times better in person! <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> And to clarify, this is what I was told the test was:
Grots with straight 3" collectors were 5 rwhp better than..
Dynatech steps with 3.5" merge collectors
This is what Jason told me, and we both agreed that the results were inconclusive because he used to large of a OD on the merge collector. Was I misinformed?
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Re: Dynatech stepped headers </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by RAGENZ28:
<strong>Also I'm going with the 1 3/4" dynatech to a 3" collector -3" y-pipe 3 1/2" exit with removable cats to a replaceable straight through with a cut out in it, to a 3 1/2" muffler to a single 3 1/2" turn down at rear, I have a 98Z28 stock motor on n20 150 shot</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Good luck fitting a 3.5" muffler any bigger than a dynomax bullet before the axle <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
<strong>Also I'm going with the 1 3/4" dynatech to a 3" collector -3" y-pipe 3 1/2" exit with removable cats to a replaceable straight through with a cut out in it, to a 3 1/2" muffler to a single 3 1/2" turn down at rear, I have a 98Z28 stock motor on n20 150 shot</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Good luck fitting a 3.5" muffler any bigger than a dynomax bullet before the axle <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Re: Dynatech stepped headers </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Grots with straight 3" collectors were 5 rwhp better than Dynatech steps with 3.5" merge collectors
This is what Jason told me, and we both agreed that the results were inconclusive because he used to large of a OD on the merge collector</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">What was the motor configuration here and power level?
This is what Jason told me, and we both agreed that the results were inconclusive because he used to large of a OD on the merge collector</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">What was the motor configuration here and power level?
