ArnZ Posted March 22, 2008 Share Posted March 22, 2008 RayJay turbo with SU, intake and exhauast manifolds. http://cgi.ebay.com/ebaymotors/OLD-SCHOOL-DATSUN-240Z-260Z-280Z-TURBO-SETUP-NO-RESERVE_W0QQcmdZViewItemQQcategoryZ33742QQihZ013QQitemZ230234143948QQrdZ1QQsspagenameZWDVW Quote Link to comment Share on other sites More sharing options...
OlderThanMe Posted March 22, 2008 Share Posted March 22, 2008 That is sorta cool... Using a stock N/A exhaust manifold. Quote Link to comment Share on other sites More sharing options...
ShaggyZ Posted March 22, 2008 Share Posted March 22, 2008 I've considered doing that - using the na manifold, that is. However, if I go with the L28 instead of an engine swap, I may get a MSA 3-2 header and use that for a similar setup. Quote Link to comment Share on other sites More sharing options...
OlderThanMe Posted March 22, 2008 Share Posted March 22, 2008 I've considered doing that - using the na manifold, that is. However, if I go with the L28 instead of an engine swap, I may get a MSA 3-2 header and use that for a similar setup. I would be wary of putting any backpressure on a thin mild steel tubular header like the MSA ones.... The stock cast manifold can withstand plenty of back pressure(turbo) though with no worries. Quote Link to comment Share on other sites More sharing options...
Challenger Posted March 22, 2008 Share Posted March 22, 2008 Nice! What are the pressures between the turbo and head compared to a normal exhaust. Just wondering. Quote Link to comment Share on other sites More sharing options...
OlderThanMe Posted March 22, 2008 Share Posted March 22, 2008 Pressure in the pre-turbo exhaust is usualy higher than the intake pressure coming out of the turbo... So if you are putting 10PSI on N/A header tubes I think the flimsy tubing would begin to fail with the heat. Quote Link to comment Share on other sites More sharing options...
ShaggyZ Posted March 22, 2008 Share Posted March 22, 2008 I've considered the heat and pressure but I think it would fun to test it out and be one of those surprises. I'm thinking 3-2 to twin scroll turbo and, as far as I understand, the header is correctly set up for a twin scroll turbo (ie alternating pulses) Quote Link to comment Share on other sites More sharing options...
OlderThanMe Posted March 22, 2008 Share Posted March 22, 2008 as far as I understand, the header is correctly set up for a twin scroll turbo (ie alternating pulses) But understand that the N/A headers(most of them) have grossly different tube lengths. My L6 square port header tubes range from around 20" to about 27" IIRC. Sure it sounds cool but...yeah. Quote Link to comment Share on other sites More sharing options...
Challenger Posted March 22, 2008 Share Posted March 22, 2008 I was wondering what psi... If anyone has ever put a pressure guage on a turbo manifold. Quote Link to comment Share on other sites More sharing options...
OlderThanMe Posted March 22, 2008 Share Posted March 22, 2008 I was wondering what psi... If anyone has ever put a pressure guage on a turbo manifold. I think it has been done...one of teh 500HP+ L6 guys was saying how his exhaust pressure was lower than the intake pressure at high RPMs... But for most of us with a "normal" turbo the pre-turbine pressure should be higher than the output from the cold side of the turbo. Think about it, if your turbo has a higher pressure on the intake side wouldn't it normally spin the turbo backwards? AKA surge? I have a feeling that the guys that see lower pressures on the exhaust side see it because of the excess amount of heat being put into the turbo at high RPM/pressure ranges. That way more heat is being turned into energy to spin the turbo than just wind spinning a fan. That is just my limited view though and don't count on it. Quote Link to comment Share on other sites More sharing options...
Here comes trouble Posted March 22, 2008 Share Posted March 22, 2008 LOL........... Somewhere in a big " later for posterity" box in my shop is a never used Crown Manufacturing complete turbo kit with instructions less the SU carb. Quote Link to comment Share on other sites More sharing options...
heavy85 Posted March 22, 2008 Share Posted March 22, 2008 That looks like something I sold on e-bay a couple years ago ... probably is the exact same. Can't remember how much I got for it maybe a buck fitty or so. Cameron Quote Link to comment Share on other sites More sharing options...
savageskaterkid Posted March 22, 2008 Share Posted March 22, 2008 Currently bidding on it, so please don't jack it up. Quote Link to comment Share on other sites More sharing options...
heavy85 Posted March 22, 2008 Share Posted March 22, 2008 Dont worry I dont want it back .... Quote Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted March 22, 2008 Share Posted March 22, 2008 I don't see the wastegate. Seeing as how I've seen this kit first hand (and have the turbo sitting next to me) I know it comes with an external gate. Without it I don't think the turbo will reach the intake manifold. Mario Quote Link to comment Share on other sites More sharing options...
PresaMax Posted March 22, 2008 Share Posted March 22, 2008 So any general comments on the kit as a whole? Good? Bad? Worthless? Any input would be appreciated. Thanks. Julius Quote Link to comment Share on other sites More sharing options...
Six_Shooter Posted March 22, 2008 Share Posted March 22, 2008 I don't see the wastegate. Seeing as how I've seen this kit first hand (and have the turbo sitting next to me) I know it comes with an external gate. Without it I don't think the turbo will reach the intake manifold. Mario I don't see what the wastegate has to do with the intake manifold. Usually you don't want the wastegate and intake manifold to intereact. Could that Rayjay have an internal gate? Quote Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted March 22, 2008 Share Posted March 22, 2008 I don't see what the wastegate has to do with the intake manifold. Usually you don't want the wastegate and intake manifold to intereact. Could that Rayjay have an internal gate? My camera is dead so I can't take pictures of it, but basically the wastegate is about an inch thick with a T4 bolt pattern on it. It slips onto the exhaust manifold first, followed by the turbo. The turbo then connects directly to the intake manifold using a coupler. Without the wastegate the turbo is going to be about an inch short, and will probably put out something like 25 psi. Mario Quote Link to comment Share on other sites More sharing options...
Six_Shooter Posted March 22, 2008 Share Posted March 22, 2008 My camera is dead so I can't take pictures of it, but basically the wastegate is about an inch thick with a T4 bolt pattern on it. It slips onto the exhaust manifold first, followed by the turbo. The turbo then connects directly to the intake manifold using a coupler. Without the wastegate the turbo is going to be about an inch short, and will probably put out something like 25 psi. Mario Ahh, you're talking about a wastegate adaptor. Quote Link to comment Share on other sites More sharing options...
supertip Posted March 24, 2008 Share Posted March 24, 2008 well that got bought, and i got out bid. If anyone is looking to sell any kit similar to that one, or have parts please pm me. Quote Link to comment Share on other sites More sharing options...
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