Time to take out the 2.4 for a Mantapart 2.5 hybrid... - Transmission Forum

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Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Saturday, September 01, 2007 5:48 PM
I don't know how frequently everyone searched through Mantapart's catalog, but I have taken particular interest in their 2.5L supercharged hybrid crate motor. It is my understanding that I need to find a different wiring harness and most definitely a more stout tranny. Presently I own a 1998 Pontiac Sunfire GT, 2.4L quad motor, isuzu 5-sp tranny. My question is, how can I swap in a Getrag tranny? Or, is it better to gut the isuzu tranny and replace the internals from a Geo storm?

Presently my goal is to have 300whp at 7200ft of elevation (located in Colorado Springs) on 91 octane pump gas. Current modifications are only functional bolt-ons: polyurethane front tranny mount, polyurethane rear tranny mount, polyurethane upper motor mount, polyurethane lower dogbone mount, Fidanza 2.4l lightened flywheel, Exedy Stage 1 organic clutch, Exedy Stage 1 pressure plate, new slave cylinder, and Eibach pro kit system plus (shocks/struts/springs/front sway/rear sway).

Thanks for taking the time to read this topic.

Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Saturday, September 01, 2007 8:40 PM
I would stay away from Mantapart, search on their name, not many good experiences. Also look them up on the BBB site, MANY complaints. If you do feel you NEED to order from them, do it COD.

Also, the "2.5 stroker" isn't exactly hard to build using 2.3 and 2.4 parts, I believe its a 2.3 block with a 2.4 crank, or the other way around. You also don't want to run that if you are wanting to run boost. You probably won't get 300hp NA out of a 2.3, 2.4, or 2.5 unless you use some nitrous.





4cyltuner.com - Information Source For 4 Cylinder Tuners
Buy stuff from CarCustoms Ebay! Won't be disappointed!

Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Monday, September 03, 2007 9:04 AM
Quote:

My question is, how can I swap in a Getrag tranny?

u can use a getrag..but you want the one that CAME with the quad4 HO from 1992-1994 ..its almost a direct bolt on with no cutting or welding and you get all the benefits of a getrag

as far as the engine be careful with mantapart..everyone says to order COD from them but take it from someone who DOES order from them they WILL NOT accept COD orders

sometimes they are ok to deal with..sometimes they will make you wait a year before they ship your stuff, its kinda hit and miss with them..but right now they are the only company i know of that prebuilds the stroker for you...but you could always build it yourself or have a local shop do it..i had mine built without mantas help



Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Monday, September 03, 2007 2:40 PM
I have researched a bit, and I think that some of your claims may be validated. I called Mantapart, and they do not accept COD. What vehicles had the quad4HO getrag in them originally??
Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Monday, September 03, 2007 4:41 PM
if your looking for just the tranny you want one from a 1992-1994 grand am GT, achieva SCX, olds calais, or beretta GTZ...if your looking for an engine to build they came in the same model cars from 1989-1994



Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Tuesday, September 04, 2007 7:19 AM
Quote:

Also, the "2.5 stroker" isn't exactly hard to build using 2.3 and 2.4 parts, I believe its a 2.3 block with a 2.4 crank, or the other way around. You also don't want to run that if you are wanting to run boost. You probably won't get 300hp NA out of a 2.3, 2.4, or 2.5 unless you use some nitrous.


Mantapart has 2 different 2.5 stroker motors.....one for the 2.3 block and one for the 2.4 block. They won't tell what they used to make a 2.5 stroker on a 2.4 block




Jason
99 Z24 Supercharged
157hp/171tq - NA
Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Tuesday, September 04, 2007 8:57 AM
seems like making a 2.5 out of a 2.4 would just take a nice overbore...i dont see it as a stroker...where as the 2.3 actually utilizes the longer stroke of the 2.4 crank..turning it into a 2.5..then take into consideration a nice overbore and it can be a 2.6



Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Wednesday, September 05, 2007 11:02 PM
woot... 2.6L
where can you get the old getrag besides a junkyard?



LD9 F23 FTW!!
Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Thursday, September 06, 2007 8:15 PM
GM still offers the tranny..but pricey..i see them on ebay every now and then..but the yards are the easiest place..and cheapest...try www.car-part.com look for one you like and have it shipped to you...thats what i did and ended up with a tranny with 50k for 350 shipped



Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Monday, September 10, 2007 9:14 PM
hmm.... well, if I got a junkyard tranny, I'd probably want to rebuild it; is there a rebuild kit made by GM or another reputable company that doesn't make the F23 seem worth the trouble? I'm fairly mechanically inclined, and will be taking a manual transmissions class at school in the next year or so- labor wouldn't be an issue for me, just parts.



LD9 F23 FTW!!
Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Tuesday, September 11, 2007 7:17 AM
well then your set...get a low milage one..take it apart..install the team green LSD insert and look it over mine wasnt bad at all when i had it apart..but you can get syncros for it





Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Wednesday, September 19, 2007 6:04 PM
getting a little off-topic, but how does the team green LSD work? (besides "well" or "good"...) I posed this question on the thread about the TG LSD, but no one has answered. All I've gotten is that it's comprised of 2 plates of steel and 4 springs, and that the PG insert works the same way. is it kinda like a clutch-type LSD? does it have some sort of friction material on the steel plates?
I've asked some people at work (toyota dealership service) how this might work, but no one has heard of it before. any help would be appreciated.

are the synchros sold as a set or individually? appx. how much do they cost?




LD9 F23 FTW!!
Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Wednesday, September 19, 2007 6:45 PM
*Think Phantom Grip.* But with stronger springs.

Chris




'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Wednesday, September 19, 2007 7:55 PM
all it does it push against the spyder gears to keep them from moving like they would normally when one wheel gets more traction or less or when ur turning



Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Thursday, September 20, 2007 2:08 PM
^^ as he said....there is no "friction plate" ..its just steel .. and i post a how to on one of the threads but i cant remember which one..let me see if i can find pics for you..but it works very very well


..................


here ya go..i still have the how to on my clubs website

http://gmofsa.com/centex/forums/YaBB.pl?num=1171167653


...................



Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Friday, September 21, 2007 11:10 PM
Am I completely off base, but is the F23 the correct getrag tranny that I am after? Remember, I have the 98 LD9 quad presently.
Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Saturday, September 22, 2007 9:08 AM
NO ... the f23 came in the newer cavs..and while it IS a getrag it wil require cutting and welding to make it fit YOUR year cav...you need the OLDER getrag that came with the quad4 HO equipped cars..those are bolt up trannies



Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Saturday, September 22, 2007 6:45 PM
^^^ isn't that what you said in your first post on this thread? this is why some threads last for ten and twenty pages- people keep asking the same questions that have already been answered. On the thread for the T.G. LSD insert review (somewhere on the trans. forum), the same 3 questions must have been asked at least 5 times each, then answered by three or four people each time, so the tread is 15 pages long last time I checked, but no one else is saying anything new.

so, Scott, what's the number (or other designation) for the getrag that you're saying should go with that engine? how can I distinguish it at a junkyard if it's not in a car?



LD9 F23 FTW!!
Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Saturday, September 22, 2007 10:16 PM
yea..usually this happens cus people dont bother reading the whole post...they just read the title then immediatly ask the question they want without even reading to see if it was already answered.....
in this case i dont think theres really anyway to figure out what kind of tranny it is outside the car without know what it looks like already..i think the number is NVG 552 but iver never actually seen the number on the tranny...i DO know that there were two getrags with the older quad HO 1989-1994.....he needs the one made from 92-94..you can tell the differnce between the two by looking at it cus the OLDER one has an external slave and the newer one(92-94) has an INTERNAL slave AND has 2 tranny mounts compared to the ONE mount the older(89-91) tranny....thats all i can really say about identifying it.....any more questions about INSTALLING it feel free to ask



Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Tuesday, September 25, 2007 12:02 AM
No luck finding any such tranny here in Colorado Springs. Any guesses as to where else I can look?
Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Tuesday, September 25, 2007 10:38 PM
www.car-part.com check thru the list and call the yards ..some of them will ship it to you for a decent price and offer a limited warranty...i got mine paid for and shipped for 350 i think? with 40k on it and a 30 day warranty




Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Monday, October 01, 2007 8:20 PM
when you swap from the isuzu to the older getrag, do you need to replace the clutch assembly, or will the LD9 clutch/flywheel work with that trans?
my isuzu trans just took a sh*t, and I don't have another car to get around in, so I need something driveable asap...



LD9 F23 FTW!!
Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Tuesday, October 02, 2007 3:18 PM
as long as you keep both, clutch and flywheel combo, they will work. i mean you can use 2.4 clutch with 2.4 flywheel or 2.3 clutch with 2.3 flywheel, but you CANT use 2.4 clutch with 2.3 flywheel!

as for where you can get that tranny. engineered perforfance has a bunch of them brand spanking new with 3.94 fdr for 750$
link
that where i will get mine along with the lsd.



Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Tuesday, October 02, 2007 3:53 PM
before you order from mantapart do yourself a favor and read through these, then you can make up your own mind. good luck with whatever you decide to do.

http://www.google.com/search?num=20&...&b tnG=Search

http://www.j-body.org/forums/read.ph...=390959#390959

http://www.j-body.org/forums/read.ph...=356723#356723

http://www.j-body.org/forums/read.ph...=346074#346074

http://www.j-body.org/forums/read.ph...=330681#330681




Re: Time to take out the 2.4 for a Mantapart 2.5 hybrid...
Friday, October 05, 2007 9:20 PM
Magik, that link is for the LSD. where are their transmissions? (I want the LSD too, but I can't afford it at this time)



LD9 F23 FTW!!
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