here is a question i thought i would throw out.....i was curious.....i have a 98 z24 with a 2.4......i was planning on building up the 2.4.....but i have a 91 grand am with a quad 4 ho..... well it has a blown head gasket and instead of building the 2.4....could i buil the 2.3HO and put it in and have a lot of stuff to go right in....if not what would i have to go through to put the quad 4 in it....i know the engine will bolt up to the trans but what would my eletrical issues be
thanks
kw
A quad 4 motor will bolt right up (this includes both the transmission and the mounts).
One problem you will have is you won't have a cam sensor anymore. You can either get the saturn cam sync generator or just deal without it. If you were to use your J-body PCM to control fuel and spark, you will want HPTuners to adjust for the different power curve that the HO motor has...which gives you less reason to buy the cam sync. You will need to use your 2.4L ICM and coils. Injectors for the 95-98 ld9 J-bodies were low impedance, which the HO injectors are as well, so you shouldn't have a problem with the inj drivers. The only other problem I could foresee is the knock sensor. Some years of 2.4L have a 1-wire and the other half have a 2-wire knock sensor...I just can't remember them off the top of my head right now. If you have a 2-wire, I believe you will need to plug/drill/tap the knock sensor hole for the 2-wire sensor. That is about all I can think of right now.
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"Youth in Asia"...I don't see anything wrong with that.
or if you wanted to make the wiring easy you just need to pick up a 1995 Z24 or GT pcm and wiring harness..they will run the quad without issue..and will also require only 1 o2 sensor
so you can ditch the one in the cat
I would like to see an actual Quad rather than hybrid quad/twin cam swap in a GM. good luck hope you try it out.
GMR has got nothing on this
right now i only have 1 o2 sensor, the previous owner before eliminated that and put a device that plugs into where the o2 sensor plug in goes and it keeps the check engine light from coming on or anything.....so im alright there i think....but someone in the transmission forum said that the transmission from the HO car wouldnt fit,,, the mounts wouldnt bolt but the engine would bolt up to it fine.....so whos right....any other problems you can think of im trying to get as much as info as possible
Quote:
.but someone in the transmission forum said that the transmission from the HO car wouldnt fit,,
well first off if you have a 2.4 engine right now then you dont NEED a differnt tranny to do the HO swap...yours will work fine.....
second..the HO tranny is an upgrade tranny for anyone with a 95-99 z or gt....if you want a better, faster transmission then the 92-94 HO 5speed getrag WILL fit and mount up just fine without any cutting or welding..whoever told you that in the transmission forum...dont listen to them...several members on here have that tranny without any problems...including me
i am upgrading the transmission, the year of this one is a 91 so will that work.
no..it will bolt up but you dont want it...the 89-91 transmissions came with an external slave cylinder(which is fine) but only came with ONE transmission mount( cus the engine had 3 at the time) its the one in the rear..if you use the 91 tranny it will NOT have a front mount and lead to more problems than you want,trust me...the 92-94 had both front and rear tranny mounts AND a better gear ratio..try to find one of those
alright thanks for all the info....
I have a 95 gt. Would you be willin to sell the ho motor?? I have been half ass lookin for an ho. Thanks.
there is a problem with the ho motor....blown head gasket and another problem there is one of the plugs shot out of the head....yeah not good....i was goin to try and heily coil it and see if that works if not i would have to try and find a new head
but i dont really want to sell it because i will use it sorry
quad heads arnt very expensive..id just try to get another rather than repair it...and changing to the newer headgasket is ALWAYS a good idea when installed an original HO engine
scott (section8cav) wrote:no..it will bolt up but you dont want it...the 89-91 transmissions came with an external slave cylinder(which is fine) but only came with ONE transmission mount( cus the engine had 3 at the time) its the one in the rear..if you use the 91 tranny it will NOT have a front mount and lead to more problems than you want,trust me...the 92-94 had both front and rear tranny mounts AND a better gear ratio..try to find one of those
MY 92 GTZ has a external slave, and normal LD9/LGO mounts... but 92 is the best year right
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
yes...SOME 92 trannies had the external slave with BOTH mounts..SOME...but i think the w41 trannys had better gearing still
scott (section8cav) wrote:Quote:
.but someone in the transmission forum said that the transmission from the HO car wouldnt fit,,
well first off if you have a 2.4 engine right now then you dont NEED a differnt tranny to do the HO swap...yours will work fine.....
second..the HO tranny is an upgrade tranny for anyone with a 95-99 z or gt....if you want a better, faster transmission then the 92-94 HO 5speed getrag WILL fit and mount up just fine without any cutting or welding..whoever told you that in the transmission forum...dont listen to them...several members on here have that tranny without any problems...including me
You said 95 - 99 ... what about 00 - 02??? i know the stock tranny is different but how does the 00 - 02 Z/GT stock Getrag trans compare against the 92 - 94 HO Getrag trans?
^^^^ The stock HO New Venture Gear trans are good to around 500 hp and they have tighter gearr ratios, but the 00-02 are still plenty strong, I think they just have a larger FDR as well as larger ranges between the gears. So, essentially you could top out higher with an 00-02, but the NVG will get you to speed quicker.
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"Youth in Asia"...I don't see anything wrong with that.
wow i didnt know New Venture made manuals... i thought they just made Automatics and 4x4 Transfer cases (that use some weird proprietary lubricant)
learn something new everyday
yea...i always recommend the 92-94 nvg to 95-99 owners cus they have the sucky isuzu...and the 00-02 already have a nice getrag..add that to the fact that the 00-02 have a differnt tranny mount than the 95-99 it doesnt make the swap worth it...IMO .. so thats why i say that
Brian Whalen wrote:^^^^ The stock HO New Venture Gear trans are good to around 500 hp and they have tighter gearr ratios, but the 00-02 are still plenty strong, I think they just have a larger FDR as well as larger ranges between the gears. So, essentially you could top out higher with an 00-02, but the NVG will get you to speed quicker.
Sorry, I should have said smaller.
smaller diameter = larger speed range per gear.....But I think you guys know what I meant.
Edited 1 time(s). Last edited Saturday, October 13, 2007 12:47 AM
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"Youth in Asia"...I don't see anything wrong with that.
