02 gsxr fork issues

[Anonymous]

what are the major issues of installing an '02 gsxr 750 or 1000 frt.end??? i just got a '79 gs 1000 frame ,chromed '93 1100 wheels and rubber, gs 1100 swing arm, and a 1228 kit. can i get these forks on my bike?? i also have a '88 gsxr 1100 frt. end.would it be sufficiant?? I ride 10,000mi. a year, and drag race every week at least one or two nights.this should be a good combo for what i'm doing,don't you think. Maybe, Yes, or No. any suggestions are well recieved. you seem like an extreamely knowledgable group of people. thanks. 8)

 

[Anonymous]

02 forks

02 forks

oh yea; i have .425 lift cams,the head is done. and i'm going to try to fit 93 kat 1100 carbs

 

[2Fast4U]

Thats a nice setup you got there. The 02 front end is way to short and it has a different style bearing so it would be a waste of time to try to fit it. Just go with the 88 front end it's alot easier.

 

[lhanscom]

Re: 02 forks

Re: 02 forks

oh yea; i have .425 lift cams,the head is done. and i'm going to try to fit 93 kat 1100 carbs

If you can afford it, go for a set of Mikuni RS38 carbs. They work very well on my 1229, and I don't have that big a lift on my cams.

 

[LarryT]

I have a 2000 GSXR 750 frontend on a 1981 GS 750 . It was easy to install and i dont think it is to short , i have also lowered the forks 2 more inchs[/img]

 

[LarryT]

check the picture gallery under 1981 GS 750 Larry Taylor

 

[Anonymous]

larry t's 78

larry t's 78

Man you and i are on the same page for sure!! Long and Low with the power to GO !!!! that bike is tight larry. I would like to talk to you alittl more. see my 1238 kit is a low compression kit,because... next winter it's getting a turbo. already have 2 turbos,not decided on which one to use.Oh, did i mention it,s also going to be a bottle baby!(this season for sure,maybe a little on the turbo also)(I'm an NX nitrous dealer)My last street fighter was a "K" brand w/1340cc turbo motor and juice.Anyways, thanks for input.I WILL be putting 02 gsxr 1000 frt. end on. it's just too cool looking not too! 8) :!:

 

[Anonymous]

carbs

carbs

hey luke, thanks for input on carbs,i think i will look a little more now

 

[LarryT]

GJ I asume the 1238 pistons are for a GS 1000 ? I raced a GS 1000 for years that was a 1026cc an old ATP turbocharger that ran a best of 5.37 @129mph.in the 1/8mile the engine was stock with the exception of the valve springs, pistons, modified KZ clutch basket and the crank was welded it had to make over 200 hp to go this quick E-Mail me if you have an questions TurboLT@aol.com

 

[Anonymous]

GS1000

GS1000

yes it's a GS1000 that's been sleeved. I have a XN 85 suzuki turbo and a small 14b mitsu turbo.the mitsu is ported and clipped.I have an alum. intake box with the right spacing for the GS.And i race at dragway 42 in West Salem,OH. it's a 1/4 mi. track.i have a speed shop at the track i carry all kind of goodies at.My KZ1340 went 7.90 to 8.10 depending upon the launch.that's around 170-173mph.what a rush.woo!! What carbs do you reccomend?i was thinking 34-36's this year, then 40's when i turbo it.

 

[Anonymous]

forks

forks

oh-yea, what are the issues involved when hanging an '02-'03 frt. end??spring is comming quick, running out of time!!!!

 

[LarryT]

The engine in the GS 750 was in my Koenig prostock chassis it ran 5.17 134mph 1/8 mile.Should of went 8.10s in the 1/4 . What i did was press out the GSXR stem, you have to use the GS stem and bearings . The GS stem is a few thousands smaller at the bottom (its just a little loose) So I drilled and tapped two holes in the lower tripple and used set screws to tighten it up. On the top tripple i made a spacer to make up the differance between the stem and the tripple then you use the GS bolt. i think i used a GS 1000 stem that uses a bolt to hold it together. the GS 750-1100 uses a nut to hold it all together. I hope you can understand Larry

 

[Anonymous]

forks

forks

thanks a bunch LT.Yea- it,s clear enough. I'll figure it out.My buddy just told me he's got a BUSA front end he wants to get rid of.think he said '03. that's what i think i'm going to use. already set up for a heavy bike and all, ya know! thanks agian LT.

 

[Anonymous]

2002 fork swap

2002 fork swap

Larrys bike looks great but it is a drag style bike. Anyone thinking about swapping the y2k gsxr forks into a GS with the idea of improved handling should flush that Idea right out or their minds. The fork is way too short and ground clearance is already an issue on these bikes due to their mile wide motors. Also the fork springs and dampening would need a major overhaul to work with a bike that weighs 550lbs. If that were not enough, they dont bolt on and have no provision for a speedometer drive. The 92 ish gsxr1100 fork bolts on, has provisions for speedometer drive. Is fairly long and is close in spring rate and dampening. The late model forks are plentiful and cheap on ebay but dont let this lead you to think you will get one on your bike and get it working decent and have it still be cheap. In the long run you will be much better off with the earlier fork and it wont cost anymore when the bill is finally tallied. Why go the hard way when an easier and better option is available? Be patient and get a complete early fork. It wil be worth the wait.

 

[LarryT]

Maru How much ground clearance do you need ? in inches please_____ I have 6" now and the bike has been lowered 2" with the springs and lowered 1" at the triple clamp that 3" If you leave the stock thats 9 " Id think that would be enough. If you do need springs they dont cost that much.You are right about the speedo but how many H-D choppers have them? You are right about them bolting on If you are not able to press a GS stem in the lower triple and make a small bushing for the top clamp.To me this is a bolt on. BTW OJ01 said he rode on the street and drag raced not road raced Larry

 

[Anonymous]

No big deal

No big deal

I just did this exact swap. The 750 front end is shorter, but was not a problem in my case since I lowered the whole bike.

The bearings slotted right in if you use the GS1000 race with the 750 bearings.

You will have to cut your fork stop about an inch and then weld on another one to the gs neck, or figure out how to modify the gsxr trees.

"That," said the cat, "is that."

 

[Anonymous]

ground clearance

ground clearance

First off, let me say that I think your bike is really nice. As for ground clearance, I am talking about dragging the motor on the ground in turns not dragging the exhaust over speed bumps. I roadraced a gs1000 in 78 and couldnt keep the cases off the ground with the stock ride height. I could not even imagine riding one of these things with two inches less. You don't have to be rideing too agresively on one of these things to run out of ground clearance, especially with modern 17 inch tires and the grip they provide. If you run these 2002 forks on one of these bikes and ride at all agressively with the stock springs you will be just about out of travel when you factor in cornering loads. Throw in a bump and you will bottom out the forks and you will be on the deck shortly thereafter. That is if you dont lever the front wheeel off the ground with the alternator cover first. If you crank up the preload big time to stop this, you will have no free sag and the bike will handle like shit, I promise. I imagine folks upgrade their suspensions to improve performance, not go backwards. I have done a lot of these upgrades on many model Honda and Suzuki's and am just trying to give you the benefit of my experience. The early 92ish GSXr1100 forks are the easiest and best forks for these bikes. They bolt on, not almost bolt on. The late model forks are technically better forks. They are lighter, more rigid, have better internals, and have better brakes and lighter wheels. They still suck on the early bikes for anything other than drag racing on these early bikes.

 

[LarryT]

OK as long as your Happy Im happy and like I said OJ01 is street riding and drag racing so he should have NO problems. I dont . Larry

 

[Anonymous]

Speedo is a none issue--I use a aftermarket programable digital speedo.It blows away any factory speedo!(look at my pics,you will see no gauges)You can buy one for between 30.00 and 119.00US dollars.Most measure 1.25x1.25 inches(31mmx31mm)My bike also has 6" clearance,and it's never been an issue.I want to go lower actually.And will once I get my new suspension mounted.

 

[LarryT]

GJ01 Sorry I have been calling you OJ01. My front is low enough i just need a defferent spring for the back. Im at 11 " over and if I lower it any more the tire will rub when 2 people ride