EXR Posted November 18, 2007 Report Share Posted November 18, 2007 Hey I want to build up my 3.4 dohc in my 95 gtp and I have a few questions. Do any companies make aftermarket camshaft kits? How much valve lift can the stock valvesprings hold? Any there any small things I can do to get more horsepower out of my motor? and if i did get a bigger cam would I have to replace the injectors or anything with the ffuel/air intake?(i dont really know much about v6 performance or fuel injection, most of my knowledge falls under carbuereted V8's) Any help and links to parts suppliers for my motor would be appreciated. Thanks,Mike Quote Link to comment Share on other sites More sharing options...
Psych0matt Posted November 18, 2007 Report Share Posted November 18, 2007 Underdrive pulley, new mounts all around, poly dogbones up top would be a good start. Quote Link to comment Share on other sites More sharing options...
EXR Posted November 18, 2007 Author Report Share Posted November 18, 2007 when you say mounts do you mean motor/tranny mounts? Quote Link to comment Share on other sites More sharing options...
Psych0matt Posted November 18, 2007 Report Share Posted November 18, 2007 yep. I just know when I replaced my engine, I did both lower motor mounts, and it was a noticable difference. mine were also pretty bad, so that might be your call Quote Link to comment Share on other sites More sharing options...
JakeMetz63 Posted November 18, 2007 Report Share Posted November 18, 2007 http://wiki.60degreev6.com/index.php?title=60DegreeV6.com I know I may get shit for linking 60degree on here, but there is all the information that you will ever need to know about the LQ1 on there. Im 99% sure that companies dont make aftermarket cams for the LQ1 but you can have your cam timing done. Since you have a 95 you could swap in a 96 or 97 top end to open it up a bit. Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted November 18, 2007 Report Share Posted November 18, 2007 yes. Lower motor mount get a solid rubber. Tranny mount only comes in solid rubber. Your engine mount at the top of the engine, Your best bet is to find an FFP mount unless MRZ makes one that Im not aware of. Same thing for the UDP, Look for an FFP pulley again unless MRZ makes one Im not aware of. For basically anything else, go over to 60degreev6.com and ask over there. Basically depends on how much money you have to play with as building these motors isnt the cheapest in the world. Quote Link to comment Share on other sites More sharing options...
CSI_MuNkY Posted November 18, 2007 Report Share Posted November 18, 2007 How much are you willing to spend is the big question. I think with the LQ1 the catch is going to be spending big bucks to get a little horsepower. If your looking at really getting power out of your DOHC you need to think about an OBD swap, either go to OBD1 or OBD2. You currently have OBD1.5 and it can't be tuned. At least with 1 or 2 you can tune them. In 96 they opened up the top end of the engine and got another 5 hp out of it, it also went to OBD2. Although it wouldn't be cheap but you could pick yourself up a 96 or 97 top end and build it up. 60degreev6 sells numerous parts for the LQ1 top end. Heavier valve springs for less valve float, shims, lighter lifters lifters. None of which come cheap. There are aftermarket pistons and rods that can fit, but I'm unsure of what ones, and have only read about one person going that route. I know its a case of finding out the specs you need and finding parts to match, you will not find them listed under the 3.4L DOHC Other things you can look at if you haven't already, intake, exhaust, suspension. We figure my suspension job was enough to shave close to 2 tenths of my quarter mile times. My time went down by 2 tenths, all that was done between the 2 trips to the track was the suspension and exhaust. If your interested in suspension there is a "how to lower a w-body" thread in the suspension section, and you can check out the walk through of my project. http://www.w-body.com/forum/index.php/topic,61157.0.html Jamie Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted November 18, 2007 Report Share Posted November 18, 2007 Speaking of your thread there, I should probably add that to the first post in that sticky! Quote Link to comment Share on other sites More sharing options...
EXR Posted November 18, 2007 Author Report Share Posted November 18, 2007 I was looking to spend a few hundred, I didnt really want to start ripping into the shortblock, I was hoping I could just do cams, valve springs, intake, etc. Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted November 18, 2007 Report Share Posted November 18, 2007 I was looking to spend a few hundred, I didnt really want to start ripping into the shortblock, I was hoping I could just do cams, valve springs, intake, etc. A few hundered wont even get you light weight lifters at $340. You dont need different springs on a stock motor, 4 cams will cost you $500+ Not to mention since you have cams them youll need springs which is another $310 + the work to put them in. Heres what I would do if I were you: Find an FFP pulley and FFP mount. As well as this: http://www.60degreev6.com/store/index.php?act=viewProd&productId=50 http://www.60degreev6.com/store/index.php?act=viewProd&productId=49 What I told you is just about the extend of the 3.4DOHC unles your going to turbo it which is a tad more thana few hundred. Quote Link to comment Share on other sites More sharing options...
Bolt_Crank Posted November 19, 2007 Report Share Posted November 19, 2007 The cheapest way to gain performance in the LQ1 is to adjust the timing... Not the easiest, and doesn't always make more power, but you can adjust the power band... Making max power out of timing adjustment is going give you a rougher idle if you tune for higher RPM power... LQ1 camshafts aren't keyed for the gears... at least, 1st gens aren't... So you'd have pretty much infinity timing adjustment... Quote Link to comment Share on other sites More sharing options...
z34Phoenix Posted November 20, 2007 Report Share Posted November 20, 2007 issue with timing is again you would need somethign to tune it. i have a 96 and a tuner and have done some major work on the spark timing... actaully gave the car a very nice jump in the 2600-3500 rpm range... but as for mods... this is the order i would: -FWI intake system (i have links in my profile on my WWW on how to build one on pg 6) -cat back exhaust. the stock cat flows very well. but ditch the 2.25 pipe for 2.5" and get a high flow muffler. -X Underdrive pulley didnt do all that much for me and since FFP is no longer open... they will cost more. nto a worth while mod IMO -Intake swap for the 96-97 units. (i actaully have all the parts needed for the swap PM me if you want to work out a deal) it is true that they are good for 5hp but the big gain is in the Tq it gained 10 lbs IIRC and the powerband is much better. -another good mod i did was the ported TB and ported intake manifolds... if you want i can do them like i did mine... it wont be cheep and will take some time to get done but it made a major diff. -another mod i greatly enjoyed was the gear swap in the trany to the 3.73 from the stock 3.43 gears... along with the shift kit and higher stall TQ converter. but this costs much more. ....im working on making a custom intake manfiold for the Z right now prob will have it done by mid jan. if that works out my current upper intake manifold and arm will be up for sale. and if the dyno doesnt show any gains over my current setup some luckey turbo person will ahve a nice short runer UIM. But deff 60* is the best source for info on the DOHC of any of the boards. if you got specific ?'s you can PM me or IM me too. i dont mind helping esp with the DOHC seeing as there are so few left of them anymore. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.