Suspension\Rim Question

[Clyons0203]

I want to lower my 94 Q to fix the body roll it has. I also want to get some bigger rims 19s or 20s. I plan on installing some Cali Custom springs and tokico shocks (stock shocks have 128k on them). My question is: With the drop will I still be able to fit 20s on the Q or should I get some 19s instead.

I dont want to have crazy negative camber or have to roll fenders. So what u guys think?

[maxnix]

No larger than 18" unless you want anchors on the corners. Dropping will not affect roll very much at all. Increased spring rate will.

[Rex]

You can "fit" almost anything, but I'd recommend looking for sizes that give you the most/best tire options without going over ~22lbs per (raw) wheel. And even that's kind of heavy.

Wes and a couple other guys will weigh in on the Cal Customs and what they have.

[Q45tech]

The Q has F146/R123 pound inch springs and a +-3.25 " roll capacity.

Before you get carried away make sure you have a 20mm rear sway bar installed that will reduce the rear roll by 0.75". ~~2.5"1" Eibach lowering spring when coupled with the 20 mm bar by 1.25" to +-to ~~2.00"

[Q45CALIBER]

I know that people on here will not agree but...I dont care. When I put my twentys on I felt a very significant differance in cornering. Still had body roll but the car handled much differently and I liked it. Keep in mind it could have been the width difference of the rims to the pie pans.

I changed most of my old stock bushings with OEM from the dealer and put on some blues and cali customs and the car handles so dreamy. But if youlive in a place with alot of uneven road then you may want to consider if you want to deal with twentys.

I do not think my rim and tire is anymore that 7 or 8 pounds more than most 18 inch rims and tires. I did a little research on tire rack. I still am able to break wind on alot of the cars that try to get with me on the street.

300C Hemi -- Shock the hell out of me but I still left him from third to fourth.

Mustang 5.0- looked like a late model. I was beat from 30 to 60 but I still got the best of him before 125. (late nights on the sothern state parkway- priceless.

Y33 with a over bore.

My point is you can do it but be prepared to flare the fenders if you go big and wide of course depending on the offset. Gas??? Well its a big 8 your going to burn either way. The car does drive heavy but I have felt worse specially with less powerful cars.


Modified by Q45CALIBER at 8:26 PM 3/31/2006

[Q45tech]

The so called current [truck] Hemi is a marketing NAME creation not really much of an engine other than 5.7 liters.

The 390 lb/ft@4000 rpm is down to 355 by 5,000..........because of the 90-93 Q rpm span it should beat/equal the 300C from 50 mph to any speed.

5800 rpm redline.

[maxnix]

The so called current [truck] Hemi is a marketing NAME creation not really much of an engine other than 5.7 liters.

The 390 lb/ft@4000 rpm is down to 355 by 5,000..........because of the 90-93 Q rpm span it should beat/equal the 300C from 50 mph to any speed.

5800 rpm redline.

My experience exactly. They have the low end torque and lower 1st gear, but after 50 mph, they are going slower and the G50 is rocketing by them soon after.

Two valve pushrod V8, cast iron block, and not a hemispherical head design. Your basic Detroit truck engine.

[Q45tech]

What most don't understand is you cannot use a REAL hemi design [with a domed piston] in a modern car because the emissions are so really really BAD and fuel economy is significantly worse than any other design.

[rsiwicki]

Now that I am a new Titan owner....man I can tell you from the Titan forum the Hemi guys must be really pissed. The RWHP is like 5% worse (driveline loss) compared to the figures on the Titan. If you take flywheel HP and then compare to RWHP the Hemi is about 5% less on average making their numbers really pathetic. Some on the Titan forum are saying that Nissan underestimated the HP on the Titan and rush to get the engine out to the market as the AF ratio is around 11 at the highest point they told me. They have a black box that interfaces with the ECU to move the timing and AF ratios and say the black box is amazing adding a solid 25rwhp at peak and at least 10rwhp across all bands from 2,000+rpms. I now eat Hemi trucks from breakfast I raced a Hemi Sport (said sport ont the side) with dual exhaust last night from a dead stop to 80mph....I won and I just finally broke 1,200miles so I could finally take it to redline. Priceless is beating a Hemi and still having the dealer temporary tag. Besides...The Dodge rear seat room is a joke....you can only fit minors back there.

btw...there will be no mods to the Titan. The vette has first dibbs on mod monies and that will be another 2~3 years before finally completed. Then maybe I can give a little love to the Titan. Also as soon as I hit 3,000 miles it (Titan) is going to Moroso for some 1/4 mile fun. Just curious to see what the stock truck does compared to others out there.

[maxnix]

Titans seem fast for a non-monster engine truck.

The Armadas and QX56 are fast and relatively nimble handlers also (due to IRS) for a large SUV.

[Q45tech]

Every vehicle has a built in safety factor [under tuned] from factory.

"black box that interfaces with the ECU to move the timing and AF ratios and say the black box is amazing adding a solid 25rwhp at peak and at least 10rwhp across all bands from 2,000+rpms."

Usually 10% improvement can be achieved without too much damage to long term durability.

[TgduMg]

300C Hemi -- Shock the hell out of me but I still left him from third to fourth.

The 390 lb/ft@4000 rpm is down to 355 by 5,000..........because of the 90-93 Q rpm span it should beat/equal the 300C from 50 mph to any speed.

5800 rpm redline.

With OEM 28 inch tall tires and a 2.82:1 rear diff, I remember the 300C that I took for a drive last year shifted from second to third at 77 mph.

Car and Driver's road test data states that the 300C will shift to fourth (1.000) gear at 118 mph.

Rex's newly acquired Rsiwicki Edition Q should have no problem at all showing a 300C driver how cool a G50 looks pulling away on the interstate.



Danisiti 1

[one ton garage]

No larger than 18" unless you want anchors on the corners. Dropping will not affect roll very much at all. Increased spring rate will.

Unless you get 19" wheels that are lighter than 18" wheels... heck, there are some readily-avl out there that are lighter than 17s, and lots of 16s! Ripley's believe it or not

[Falkdesigns]

Unless you get 19" wheels that are lighter than 18" wheels... heck, there are some readily-avl out there that are lighter than 17s, and lots of 16s! Ripley's believe it or not

No way!! That's just not possible, the 1" jump from 18" to 19" spells disaster on a Q45!! Jeez, do you just make this stuff up?

As it is, with my 19's, I feel as if my car is dragging anchors like in that commercial....

syke

[Q45tech]

When I put my twentys on I felt a very significant differance in cornering.

Compared to what old worn hard compound tires.

Feeling doesn't count only measuring on a skid pad or slalom counts.

I'll bet 90% of 90-93 Q drivers haven't ever exceeded 0.65G except in braking much less the 0.75-0.85G the design is easily capable of achieving on 15-16" tires.