what will work better for crossfire?
Melting Slicks
Joined: Dec 2009
Posts: 2,232
Likes: 285
Check out the engine pictures in my profile album, I used a truck style tbi unit & conventional intake. All with the stock wiring & ecm.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Worth considering^.
You could get that cheap truck engine (w/it's great flowing heads and 9:1 compression), a "Vortec"/carb intake that will bolt to the truck heads w/o any modifications, and then make the earlier truck TBI work w/your CFI harness, and ECM...for starters at least.
You can MAKE a CFI intake work on the Vortec heads. But it takes some effort.
You could get that cheap truck engine (w/it's great flowing heads and 9:1 compression), a "Vortec"/carb intake that will bolt to the truck heads w/o any modifications, and then make the earlier truck TBI work w/your CFI harness, and ECM...for starters at least.
You can MAKE a CFI intake work on the Vortec heads. But it takes some effort.
Thread Starter
Racer
Joined: Nov 2013
Posts: 338
Likes: 8
From: South NewJersey
OK. Customer satisfaction seems to be good (checked a few different sites). I know this one is a bit more but its a roller witch from what I've read will help with the slow non tunable ECM. So once again thr
owing this out there to what seems like the "been there-done that" crew. what should I expect when I fire this engine up with the rest of my combo above. Thanks
http://blueprintengines.com/index.ph...ecs-bp38313ct1
owing this out there to what seems like the "been there-done that" crew. what should I expect when I fire this engine up with the rest of my combo above. Thanks
http://blueprintengines.com/index.ph...ecs-bp38313ct1
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
It's a 383, so that will help tame the cam a little compared to the 350 that you had picked earlier, but your looking at even more cam and that's a lot of cam for a stock/untuned ECM.
If you decide to go this route, I'd port the intake to the limit of the casting (what should be done on any CFI port job anyway), throw the biggest injectors at it that you can get (which I think are 90pph), then use a marine/TBI vacuum referenced Fuel pressure regulator to cut fuel at idle/cruising, and set the base pressure at ~15 PSI.
That should get you running/driveable and you can adjust/dial it in from there. I would only expect no more than ~320 hp from your 430 hp engine in this configuration. Then, I'd pursue a Edelbrock SY1, Offenhauser Crossram, or something like that. Those are "CFI" intakes that can actually feed a motor like you're suggesting. I'd install that intake w/a custom lid, bored TB's and a stand alone/aftermarket ECM to tune it....you could end up w/the fastest CFI around.
If you decide to go this route, I'd port the intake to the limit of the casting (what should be done on any CFI port job anyway), throw the biggest injectors at it that you can get (which I think are 90pph), then use a marine/TBI vacuum referenced Fuel pressure regulator to cut fuel at idle/cruising, and set the base pressure at ~15 PSI.
That should get you running/driveable and you can adjust/dial it in from there. I would only expect no more than ~320 hp from your 430 hp engine in this configuration. Then, I'd pursue a Edelbrock SY1, Offenhauser Crossram, or something like that. Those are "CFI" intakes that can actually feed a motor like you're suggesting. I'd install that intake w/a custom lid, bored TB's and a stand alone/aftermarket ECM to tune it....you could end up w/the fastest CFI around.
Last edited by Tom400CFI; Mar 3, 2014 at 11:26 AM.
Thread Starter
Racer
Joined: Nov 2013
Posts: 338
Likes: 8
From: South NewJersey
Thanks for info. I will post with my decision ,then outcome. I really don't want to go to a carb, I like my mpg reading on the dash , and I want to keep the originality of the car. For economic reasons going carb is my plan B if I cant get my crossfire to function to around what was in stated above post. then switching to another later style F.I.
Does this seem to be reasonable or is there a less expensive way to accomplish what Im looking for = (MY 84 to run CLOSE acceleration and 1/4 mile numbers to a early 2000's corvette)
Does this seem to be reasonable or is there a less expensive way to accomplish what Im looking for = (MY 84 to run CLOSE acceleration and 1/4 mile numbers to a early 2000's corvette)
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Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Thanks for info. I will post with my decision ,then outcome. I really don't want to go to a carb, I like my mpg reading on the dash , and I want to keep the originality of the car. For economic reasons going carb is my plan B if I cant get my crossfire to function to around what was in stated above post. then switching to another later style F.I.
Does this seem to be reasonable or is there a less expensive way to accomplish what Im looking for = (MY 84 to run CLOSE acceleration and 1/4 mile numbers to a early 2000's corvette)
Does this seem to be reasonable or is there a less expensive way to accomplish what Im looking for = (MY 84 to run CLOSE acceleration and 1/4 mile numbers to a early 2000's corvette)
Last edited by Tom400CFI; Mar 3, 2014 at 12:29 PM.
Drifting
Joined: Aug 2010
Posts: 1,704
Likes: 8
Can i suggest you to take a look at Tri Star engine site?these guys here at tri star make good combos based on different cam choice, cranckshaft (cast-forged)pistons,displacements...you can choice between standard and pro star that came with a new,not rebuild,Dart block SHP
http://www.tristarengines.com/catalo...es/gm/355.html
http://www.tristarengines.com/catalo...es/gm/355.html
Thread Starter
Racer
Joined: Nov 2013
Posts: 338
Likes: 8
From: South NewJersey
WOW! made in USA brand new block and they will modify build. I think that's worth $300 more than the comparable blueprint . am I reading this right?
http://www.tristarengines.com/catalo...num-heads.html
http://www.tristarengines.com/catalo...num-heads.html
Drifting
Joined: Aug 2010
Posts: 1,704
Likes: 8
yes ,this is a 383,with a REBUILD block since the NEW DART block is in high price range.This is a honest foundation,but you can add forged internals,and choice between different cams.This guys aren't famous as Bluprint crates,but i like the way they work.As you can see a partial assembled bottom end with NEW block costs as a fully assembled rebuild block with Dart heads...but you can see lots of combos,i'm dreaming for a 406 they list...i know myself :it has to be mine...
http://www.tristarengines.com/catalo...shp-block.html
this is the same 383 with a NEW DART BLOCK it costs almost twice the rebuild block 383,but it's obvious we are talking about a NEW DART BLOCK coming with all the goodies it has:
http://www.tristarengines.com/catalo...der-heads.html
•True Priority Main Oiling System
•Siamese cylinder bores with extra-thick walls that resist cracking and improve ring seal for more power
•Extra thick decks ensure reliable head gasket seal
•Blind head bolts don't go through to water jacket
•Splayed outer bolts on middle main bearing caps
•All OE bolt holes for starter, clutch ball, etc...
•MADE IN THE USA
http://www.tristarengines.com/catalo...shp-block.html
this is the same 383 with a NEW DART BLOCK it costs almost twice the rebuild block 383,but it's obvious we are talking about a NEW DART BLOCK coming with all the goodies it has:
http://www.tristarengines.com/catalo...der-heads.html
•True Priority Main Oiling System
•Siamese cylinder bores with extra-thick walls that resist cracking and improve ring seal for more power
•Extra thick decks ensure reliable head gasket seal
•Blind head bolts don't go through to water jacket
•Splayed outer bolts on middle main bearing caps
•All OE bolt holes for starter, clutch ball, etc...
•MADE IN THE USA
Last edited by tunedport85inject; Mar 4, 2014 at 05:38 AM.
Instructor
Joined: Feb 2014
Posts: 222
Likes: 0
Once he gets his engine squared away. What else needs attension?
Trans
Suspension
Gearing.
If you guys don't mind hashing out the rest of the 84 vette it would be great I smell sticky.
Also which tires to help hook up at the line.
Trans
Suspension
Gearing.
If you guys don't mind hashing out the rest of the 84 vette it would be great I smell sticky.
Also which tires to help hook up at the line.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
M/T drag radials are pretty popular stick real well use them F/T id have wrecked it by now wihtout them
Nittos may last a little longer not quite the bite but still a good tire.
M and H....Toyo Proxy list goes on
Nittos may last a little longer not quite the bite but still a good tire.
M and H....Toyo Proxy list goes on
Thread Starter
Racer
Joined: Nov 2013
Posts: 338
Likes: 8
From: South NewJersey
Called Tristar engines. They seemed to care that I was getting the best engine for my needs and not just wanting to sell me "anything".
This engine is a bit more than I originally was planning to spend BUT it looks like its well worth the added cost. Going to try and get it ordered by this weekend. As for the rest of my project, a couple of years ago I changed the lower front end to a 1994 (for wheel offset and bigger breaks) I kept my 1984 leaf spring. Now that she is the big 30(yrs.)
Ijust got done an entire interior redo (red to black) and at the end noticed crack in the block so time for engine. will freshen up and shift kit my orig. trans until next winter doing new trans and Dana 44 swap.
That's the plan at least...
This engine is a bit more than I originally was planning to spend BUT it looks like its well worth the added cost. Going to try and get it ordered by this weekend. As for the rest of my project, a couple of years ago I changed the lower front end to a 1994 (for wheel offset and bigger breaks) I kept my 1984 leaf spring. Now that she is the big 30(yrs.)
Ijust got done an entire interior redo (red to black) and at the end noticed crack in the block so time for engine. will freshen up and shift kit my orig. trans until next winter doing new trans and Dana 44 swap.
That's the plan at least...