Carbureted LSX forum - carbed lsXtra 68 firebird 400,newbie
08-03-2012, 11:59 PM
tried a post in the conversion part of the forum,less than a warm welcome,here it is,rust free western 68 firebird 400 coupe with zero options except fold down seat,2005 lq4 rebuilt and in subframe,78mm turbo plumbed and ready to go,th400,3.23 geared nine inch,4 wheel discs.581 lift cam,850 carb,victor intake,msd box,4 inch down pipe to single 3 inch to rear,final body and paint going on now,will run stock ralleys up front and rears widened to 10 inches,3000lbs,shooting for mph in the quarter and will be mostly street driven,
08-04-2012, 07:03 AM
looks good i have a ly6 6L victor jr,750,small cam in my 69 camaro im hoping to put a 76mm in the same location over the winter
08-04-2012, 09:14 AM
thats a nice start you have there, which manifolds did you use? the lq4 manifolds?
anyway keep the photo's coming!
When I kill my N/A setup, I want to try a low buck blow through, similar to what your doing.
08-04-2012, 09:40 AM
lo buck is the theme,looking at 10k out the door,scored big time on the motor 500.00 complete including another set of manifolds off same year truck,practiced on the off side manifolds to get the welder set up,buddy of mine cannot keep his hands off the welder and did most of the heavy work,he runs two buick gns that are both 8 second cars,using his game plan plus two more cylinders,we are hoping for 145 in the quarter mile shake down and will tune from there,will be running a duel noz alky kit,93 octane pump gas,stall is around 3000,sold last car project to do this one,full exhaust 383 monza coupe street car,self imposed 10.20 @128 1.41 short time,tossed s few picture of that one on here,i never get enough of checking out cars,,any car,any brand, will post updates as possible
08-04-2012, 10:39 AM
Very nice, will be killer!
08-04-2012, 11:37 AM
Basically the same idea i've got for my 69 maro....hell of a setup:drive:
08-04-2012, 12:50 PM
we will have to see how it goes,we spent a lot of time keeping everything close to the motor but still 1 inch breathing room for heat disapation,check the turbo side view,,yes the crossover is under/behind the balancer and room to spare,if this goes well this setup should fit into any body style with little mods needed,i have a 80 monza coupe,and a 74 GTO both complete and rust free that can be converted to ls power,,
having the cars name done up for t shirts w/picture and all, see if someone hijacks the lsXtra theme,going with white letters and the X will be red ,will put on the spoiler and fenders,one large on underside of hood,pictures of finshed artwork to come
08-08-2012, 09:20 AM
working on the coolant and pcv,
idea for pcv is tubing with pcv valve run to catch can to under the carb vacuum port,
have coolant tube in front only will run to drilled and tapped nipple on top of water pump
good/bad ,,ideas ,,let me know as hope to have it completed within a couple of weeks
Pop N Wood
08-08-2012, 10:30 AM
Big ass turbo. That thing is going to break some driveline parts. Is the waste gate going to plumb into the downpipe or somewhere else?
Also doesn't the PCV need to be up stream of the turbo or else it will see boost? Just curious.
08-08-2012, 09:47 PM
wastegate in now plumbed and angled downstream,car is a work in progress,turbo oil system is done plumbed to oil pan,
using all good parts in the drivetrain,ford nine,spool,billet this and that,have three sets of gears 3.00,3.23,3.50 need to decide which ones to use
anyone with a part number or year/model for upper and lower radiator hoses for this lsx conversion
i thought i needed to hook up to the tube coming out of the valve cover then a inline pcv to the catch can then to the back of the manifold,,,,,somebody correct me before i screw it up,,