IRP Q45 Differential kit review
#1
Full Member
Thread Starter
iTrader: (5)
Join Date: Jun 2007
Location: Texas
Posts: 217
Likes: 0
Received 0 Likes
on
0 Posts
IRP Q45 Differential kit review
IRP Q45 differential in FD kit.
I contacted IRP earlier last year about a Q45 R200 style differential as an alternative for the Cobra Diff due to cost. He had his team fabricate a kit and I've been going back and forth with him. I told him I would test it out at TX2K16, my car puts down over 800rwhp and 600ft-lbs on the dyno the night before TX2K. I drove the car 1100 miles, ran it hard on the streets without any issues.
The kit he supplied me came with the hy-tuff half shafts, chromoly differential brace, and delrin bushings and all the hardware. This kit could be bolted on without any welding. It was straight forward to put on. The kit is great for guys that do swaps or looking for a way around the stock differential. I will post pictures of the kit later this weekend. I would like IRP for their time in developing a kit that is affordable for our community.
I contacted IRP earlier last year about a Q45 R200 style differential as an alternative for the Cobra Diff due to cost. He had his team fabricate a kit and I've been going back and forth with him. I told him I would test it out at TX2K16, my car puts down over 800rwhp and 600ft-lbs on the dyno the night before TX2K. I drove the car 1100 miles, ran it hard on the streets without any issues.
The kit he supplied me came with the hy-tuff half shafts, chromoly differential brace, and delrin bushings and all the hardware. This kit could be bolted on without any welding. It was straight forward to put on. The kit is great for guys that do swaps or looking for a way around the stock differential. I will post pictures of the kit later this weekend. I would like IRP for their time in developing a kit that is affordable for our community.
#2
RX-7 Bad Ass
iTrader: (55)
That's sweet! Sounds like a really good alternative.
Dalle
Dalle
Trending Topics
#8
Full Member
Thread Starter
iTrader: (5)
Join Date: Jun 2007
Location: Texas
Posts: 217
Likes: 0
Received 0 Likes
on
0 Posts
I was in the same situation and didn't want to go with the Cobra Rear end. It seemed way overpriced for what I needed. I couldn't go out and push the car without worrying if it would get me home or being towed home due to the weak factory differential. With the Q45 differentials being very affordable and just mounting a few things I was able to install it over the weekend.
#13
Eats, Sleeps, Dreams Rotary
iTrader: (17)
1991 to 2001 are R200V VLSD
2002 to 2006 are R200 Open
Nissan also has R230 open units on some V8 SUVs which are even stronger.
A lot of people swap their Viscous units for clutch-type or helical because the viscous torque transfer is low and tends to go open diff when heated up at the track or drags.
#14
SEMI-PRO
iTrader: (2)
I assume some tall ratios are available like with the Ford 8.8 if people are running this for the Texas Mile. Not sure if that exactly answers your question or not as I have no info. You could always call IRP and ask. I guess know the pricing might be a cool nugget to find out as well. I'm sure that's being worked out but I'm Nosey.
#15
Rotor Head Extreme
iTrader: (8)
I assume some tall ratios are available like with the Ford 8.8 if people are running this for the Texas Mile. Not sure if that exactly answers your question or not as I have no info. You could always call IRP and ask. I guess know the pricing might be a cool nugget to find out as well. I'm sure that's being worked out but I'm Nosey.
Well I'm looking to stay 4.10 or go up to 4.30. The T56 I have is close ratio and perfect for my NA 20B. I will also eventually turbo charge so I wouldn't mind upgrading now.
Thread
Thread Starter
Forum
Replies
Last Post
Banzai-Racing
3rd Generation Specific (1993-2002)
12
01-24-17 09:16 PM
j_tso
1st Generation Specific (1979-1985)
1
03-01-16 05:23 PM