any suggetions on putting a 302 motor in a 94 Q45

A Q45 forum / Cima forum for the President of Infiniti's lineup. Brought to you by Infiniti Parts USA, your OEM source for Q45 parts!
User avatar
kidstayridintheq45
Posts: 11
Joined: Fri Mar 16, 2007 3:28 am
Car: 1994 infiniti q45

Post

i just open my shop down in new jersey i am going to be raceing my Q and need some pointers if you have ever seen it done ...i'm gonna put a T5 transmission in ..i got to set the clucth pedal in.do you think the stock rear will hold up against the the motor and trans....i have full flowmaster exhaust...any help will be appreciated ...


User avatar
Rex
Posts: 16845
Joined: Sat Apr 05, 2003 6:50 pm
Car: None
Location: South of ATL
Contact:

Post

kidstayridintheq45 wrote:i just open my shop down in new jersey i am going to be raceing my Q and need some pointers if you have ever seen it done ...i'm gonna put a T5 transmission in ..i got to set the clucth pedal in.do you think the stock rear will hold up against the the motor and trans....i have full flowmaster exhaust...any help will be appreciated ...
You'll probably find more help in our Hybrids section.

Also search for posts by midnightsliding (I think that's his name), he put an RB25DET w/ a 5 spd in one and might offer some suggestions.

mtcookson
Posts: 2204
Joined: Thu Nov 21, 2002 12:43 pm
Car: 1991 Nissan 300ZX
1992 Iinfiniti Q45
and much much more
Contact:

Post

The stock differential is probably one of the strongest R200's out there I believe. The R200 is already a very strong unit but this particular R200 has R230 style output shafts and axles (30 spline flange axle/output shaft and 32 spline axles). It should be able to handle just about whatever you throw at it. One thing to keep in mind though... some have broken even the R230 in the past with manual transmissions simply due to improper use. Clutch drops and the like can and will kill just about any differential you put in there. If driven properly the differential should handle just about any amount of power you can put to it.

superuber
Posts: 811
Joined: Wed Jan 11, 2006 6:12 pm

Post

If you are going to go to that much trouble to put in a ford motor you may as well modify the rear. The rear diff is a weak point. Esp. if you are putting 500 plus hp on the ground. Midnightslidings set up is way different compared to what you are doing.Unless you plan on drifting.

User avatar
kidstayridintheq45
Posts: 11
Joined: Fri Mar 16, 2007 3:28 am
Car: 1994 infiniti q45

Post

only things with going with a ford motor 302 is for the fact i cant find aftermarket motor parts for the q45 ...i'm going to be 1/4 mile that bicth i'm putting a pro-charger on that ***** with the stock suspenion and see how it takes it

captainluigi
Posts: 679
Joined: Wed Nov 02, 2005 4:15 pm
Car: 1996 q45t
Contact:

Post

i like this idea. keep us posted. so easy to extract H.P. from those motos. built a couple for my searay 6yrs. past.

User avatar
Rex
Posts: 16845
Joined: Sat Apr 05, 2003 6:50 pm
Car: None
Location: South of ATL
Contact:

Post

kidstayridintheq45 wrote:only things with going with a ford motor 302 is for the fact i cant find aftermarket motor parts for the q45 ...i'm going to be 1/4 mile that bicth i'm putting a pro-charger on that ***** with the stock suspenion and see how it takes it
You probably want to talk to these guyshttp://forums.nicoclub.com/zeroforum/193

To everyone: My thought was midnightsliding is the only manual Q45/G50 that I know of.

mtcookson
Posts: 2204
Joined: Thu Nov 21, 2002 12:43 pm
Car: 1991 Nissan 300ZX
1992 Iinfiniti Q45
and much much more
Contact:

Post

superuber wrote:The rear diff is a weak point. Esp. if you are putting 500 plus hp on the ground.
What is the weak point? Generally the R200's are very, very strong.

Haitian_King
Posts: 2868
Joined: Sat Jan 13, 2007 8:20 pm
Car: 1992 Black Infiniti Q45 /w TCS
1995 Black Infiniti Q45
Location: South NJ/PA/Canada

Post

kidstayridintheq45 wrote:i just open my shop down in new jersey i am going to be raceing my Q and need some pointers if you have ever seen it done ...i'm gonna put a T5 transmission in ..i got to set the clucth pedal in.do you think the stock rear will hold up against the the motor and trans....i have full flowmaster exhaust...any help will be appreciated ...
Where at? Is the shop in Wildwood? I'll definitely come down and pay a visit.

Finally. Another South Jersey Q on NICO.

SATAN
Posts: 142
Joined: Sat Jan 05, 2008 3:37 pm
Car: 1985 3Nissan 00ZX heavily modded
1984 Nissan 300ZX Anniversary stock
1990 Infiniti Q45 stock

Post

superuber wrote:If you are going to go to that much trouble to put in a ford motor you may as well modify the rear. The rear diff is a weak point. Esp. if you are putting 500 plus hp on the ground. Midnightslidings set up is way different compared to what you are doing.Unless you plan on drifting.
Man, and here I wanted to hybrid my q45 diff to fit in my z31 because I figured the 30spline would be quite a bit stronger than the typical r200.

Is it just the Viscous part that is weak? I know people use the TT diff and put out some good 60' times with those. Arent they essentially the same thing internally? I know one is the 230 and the other is the 200, but they both use the same output shafts.

SATAN
Posts: 142
Joined: Sat Jan 05, 2008 3:37 pm
Car: 1985 3Nissan 00ZX heavily modded
1984 Nissan 300ZX Anniversary stock
1990 Infiniti Q45 stock

Post

mtcookson wrote:The stock differential is probably one of the strongest R200's out there I believe. The R200 is already a very strong unit but this particular R200 has R230 style output shafts and axles (30 spline flange axle/output shaft and 32 spline axles). It should be able to handle just about whatever you throw at it. One thing to keep in mind though... some have broken even the R230 in the past with manual transmissions simply due to improper use. Clutch drops and the like can and will kill just about any differential you put in there. If driven properly the differential should handle just about any amount of power you can put to it.
Damn, looks like I read the wrong post before I posted LOL. This is more of what I was looking for.

Haitian_King
Posts: 2868
Joined: Sat Jan 13, 2007 8:20 pm
Car: 1992 Black Infiniti Q45 /w TCS
1995 Black Infiniti Q45
Location: South NJ/PA/Canada

Post

A friend of mine was telling me about welding the differential. "Spidering" I think he called it? Either way, it was something along the lines of making both wheels spin at the same speed. He said it works best in track applications because of the dramatic increase in acceleration. But cornering ability is severely decreased. He said that the turning radius gets really wide.

Would that help in this situation?

SATAN
Posts: 142
Joined: Sat Jan 05, 2008 3:37 pm
Car: 1985 3Nissan 00ZX heavily modded
1984 Nissan 300ZX Anniversary stock
1990 Infiniti Q45 stock

Post

Haitian_King wrote:A friend of mine was telling me about welding the differential. "Spidering" I think he called it? Either way, it was something along the lines of making both wheels spin at the same speed. He said it works best in track applications because of the dramatic increase in acceleration. But cornering ability is severely decreased. He said that the turning radius gets really wide.

Would that help in this situation?
Yes actually however, your friend is correct. It makes for piss poor daily driving. Also if you weld the spider gears you have to do VERY good welds. If you do not, you can actually make the diff weaker than it was when it was and open diff or a VLSD. Funny you bring this up, this was one of my thoughts. I am torn though because, my Z is becoming more and more of a race car as time goes on. That was not its intended purpose. It was just supposed to be a badass street car. I guess that went out the window when I install the 10pt cage though. LOL.

ScottJackson
Posts: 657
Joined: Fri Mar 26, 2004 6:08 pm
Car: 91 Q45, 92 Q45a, 93 Q45, 79 BMW 635CSi, 95 BMW 540i

Post

The T5 trans will be the weak link. Those break with stock 5.0 power (if you shift kinda hard). The 302 is also weak. The main webs split above 450hp or so. A 351 is much beefier. Use a TKO500/600 trans with a 351 and you'd have something. Or, a '99+ 3.8litre 4R70W transmission with Baumann controller.

User avatar
kidstayridintheq45
Posts: 11
Joined: Fri Mar 16, 2007 3:28 am
Car: 1994 infiniti q45

Post

actullaly its in greencreek i havent seen two many Q"s around just mine i live in the villas i have a pearl white Q i had 20's but i just sold them yea man stop bring in some bussiness

mtcookson
Posts: 2204
Joined: Thu Nov 21, 2002 12:43 pm
Car: 1991 Nissan 300ZX
1992 Iinfiniti Q45
and much much more
Contact:

Post

ScottJackson wrote:The T5 trans will be the weak link. Those break with stock 5.0 power (if you shift kinda hard). The 302 is also weak. The main webs split above 450hp or so. A 351 is much beefier. Use a TKO500/600 trans with a 351 and you'd have something. Or, a '99+ 3.8litre 4R70W transmission with Baumann controller.
I agree about the T5... however, they were used in so many different vehicles that there are a lot of performance upgrades for them making them easy to build up for lots of power.

AlabamaDan
Posts: 1750
Joined: Fri Aug 02, 2002 12:37 pm
Car: 2015 Infiniti Q70
1998 Infiniti QX4

Post

Not that it matters to me, but I've heard that if you're in a state that does inspections they won't pass a car with a motor from another manufacturer, i.e. Ford motor in Nissan Car. Just FYI.

ScottJackson
Posts: 657
Joined: Fri Mar 26, 2004 6:08 pm
Car: 91 Q45, 92 Q45a, 93 Q45, 79 BMW 635CSi, 95 BMW 540i

Post

Yeah, with an upgraded (aftermarket) case, input shaft, and straight cut gears, they can handle some decent torque. The problem then is that the cost for those upgrades which allow them to handle close to 500 lb-ft of torque is that it costs more than just buying a TKO500/600 which will handle more than their rated 500/600 lb-ft and are a better overall transmission. The "world class" T5 is not very strong. A few bang shifts with a warmed over 302 will take out 2nd or 3rd gear of the T5, no matter what version it is. The case flexes and is weak. When the case flexes the gears lose the tight mesh and that makes them break the gear teeth. I don't think a stock or close to stock 302 is an upgrade from the VH. A hot 351 or 351 based stroker certainly is.

What sort of racing is going to be done with this hybrid Q?

Haitian_King
Posts: 2868
Joined: Sat Jan 13, 2007 8:20 pm
Car: 1992 Black Infiniti Q45 /w TCS
1995 Black Infiniti Q45
Location: South NJ/PA/Canada

Post

AlabamaDan wrote:Not that it matters to me, but I've heard that if you're in a state that does inspections they won't pass a car with a motor from another manufacturer, i.e. Ford motor in Nissan Car. Just FYI.
That'll stop us at the free state inspection. But you can pay $70 a gas station aka "private inspection center" and pass.

I learned that from my cousin after he had his Q tinted. It's an automatic failure for the free inspection. I once failed inspection in my Grand Cherokee because "Left turn signal blinks too quickly."

I'd understand if it didn't blink at all, but too quickly? It's hazardous to someone prone to light induced epileptic seizures, but really.

SUB ZERO CAR FANATIC
Posts: 334
Joined: Mon Jan 01, 2007 4:51 pm
Car: 1993 Infiniti Q45 ( SOLD)
1997 Cadillac Deville Concourse
1998 Cadillac Seville STS
2009 Infiniti QX56 LE

Post

YEAH!! Dont do it,the poor old Q is gonna cry when you pull its heart out and replace it with a fix or repare daily!! lol just adding a little humor to the idea! To each his own,i personally think the Q45 is a perfect luxury machine,i think the 4.5 is a awesome,powerful motor,and has lots of potential. GOOD LUCK with your project,id like to hear how it turns out. Are you going to be racing it or just want something thats different?

User avatar
kidstayridintheq45
Posts: 11
Joined: Fri Mar 16, 2007 3:28 am
Car: 1994 infiniti q45

Post

whats up bro ..i am basically have it to be a streetcar but at the same time have the ****ing power to go with i have the motor in it now the 4.5 and the full flowmaster exhaust and it just sounds like a mustang so im thinking why not go with the 302.....i would love to build the stock motor but i cant find aftermarket motor parts any where i dont know enough about the motor so the 302 its like parts unlimted

Haitian_King
Posts: 2868
Joined: Sat Jan 13, 2007 8:20 pm
Car: 1992 Black Infiniti Q45 /w TCS
1995 Black Infiniti Q45
Location: South NJ/PA/Canada

Post

What are you going to do with the 4.5? If you're going to get rid of it, I think I can find some room in my garage.

User avatar
kidstayridintheq45
Posts: 11
Joined: Fri Mar 16, 2007 3:28 am
Car: 1994 infiniti q45

Post

I'M NOT SURE WHAT I AM GOING TO DO WITH IT YET BUT I WAS THINKING ABOUT PUTTING IT IN A 240 THAT MY COUSIN HAS I'VE ALREADY SEEN A 240 SX WITH A 302 IN IT "THAT ****ING CAR IS FAST" MY BUDDY BUILT IT AND THEN HE SOLD IT BECAUSE THE MOTOR WAS TOO MUCH AND WAS TWISTING THE FRAME AND THE SUNROOF STARTED LEAKING SO HE WENT BACK TOO MUSLE BUT AINT **** LIKE A SOUPPED UP IMPORT BUT IF ANY THING ELSE I DEF LET YOU U KNOW ABOUT IT


Return to “Q45 Forum / Cima Forum”