Welp kiddies had the day off we got my 79 as a roller now so time to let off some steam. . . . . My wife is currently in Germany on business so had my buddies over and one thing led to another. . . Pound for pound the datsun held her own . . . I'm running the stock n/a tranny with the centerforce stage 2 clutch. . . . First I got out the hole first each time 2nd well the vette started takeing over. . . . Seems like I ran outa gear in 2nd 3rd I was catching up then 4th vette was long gone. . . . . . . Now I really feel like the Z had the power to run it. . . . I'm lightly modded with no cat. . . This car has the R200 rears. . . . Now with my new project running the T5 will the gearing be lil taller than the n/a. . . . . . 3 runs same issue me driveing the vette and Z. . . . Flat highway from dead stop. . . . "Empty toll road ". . . . did notice the z DID NOT LIKE going past the 110 mark shimmy and shake and body sway. . . . Tires are 215 70 R14. . . . . Wonder if I went to a 60 it would help?

 

The size of the tire isn't what makes the shimmy... it's slightly unbalanced tires, worn tires, cheap low rated tires, or loose / worn suspension parts. Above 100mph, everything must be at a much tighter spec than daily driving at 65-75mph.

All new bushings, tie rods, struts, springs, T3 tension rods, strut bars, perfect wheel balance, ... those will all help high speed control.

I recently acquired a tire changing machine (https://www.zdriver.com/forums/lounge-off-topic-219/yeah-no-more-visits-tire-shop-me-33521/) and now I'm doing research on manual wheel balance (so I don't have to spend $6.50 per tire at Walmart for a mediocre balance or $5k for a spiffy electronic wheel balancer).

 

Well the t top as I pre posted. . . . Has all new top of the line struts. . . . . Rack and pinion swap yadda yadda she corners better than my 08 wrx daily driver. . . . So yea its the Tire/rim combo I'm running. . . . Old school dealer option 5 spoke mags and BF t/a's 149.53 a pop at ntb. . . . . This is pure research for my current build. . . I really hope the T-5 is a lil taller gear wise . . . . The goal is a sleeper that can run modern V8s. . . . The stock na 5 speed is too short of a gear box bang. . Bang . . . Bang 65 mph then a nice long ride to 90.. . . . The gearing in the vette was wayyy longer between shifts and leaves you planted @ 100. . . . Granted the vette has a small block but 8 gotta get to planning the drive train. . . . Smitty does have the rare "r 32" ?? Rear end from the scca cars wount know if that would help until its bolted in and running. But he wants another 700.00 for it. I never drove the turbo 5 speed to know if its going to have the same issue. . .

 

The T5 is shorter than the stock Nissan - that's why it's mated up to the 3.56 instead of the 3.9. If you want taller get the NA 5sp (or a 240SX swap or if you're really serious the best is the Z32 300ZX tranny but that requires some custom fab or an install kit) and keep the turbo rear end....

It's your engine build that will have you rolling with V8s not your gear ratio combo....

 

What I kinda thought. . . . . If only I had another gear 60 75 just stops dead between 3rd and 4th shifts also rack up time. . . . If I go to a lighter flywheel ill gain quicker revs how ever I think that will kill the lower end grunt. . . . I can go with a more racer clutch however that will kill daily driving pleasure with traffic and all these hills here so down to bare engine and hp. . . . . I decided to go with the factory turbo with some modding of the waste gate and intercooler and custom down pipe and 2.5 in exaust no kitty. . . Have the cam from the p90 and the better dizzy off an 83 smitty claims there is several styles of dizzys I'm letting him select the parts . . . . So the car will be over the shop next month for the boys to start putting the car together. . . . Did get a sweet deal car assembled painted minus interior for the 5 K budget. . . .I decided to go with the electric blue and silver two tone exactly matching my t top I love that combo shame modern cars haven't ran the old two tones

 

Any way tottally retarded question and I'm going to be bitched at for asking what is the max tire width can I run on the fronts and who would be a good vendor for new rims? I been on the hunt and keep getting stuck on bullshit websites. . . . .

 

Yasin's running 255/40/17 and 275/35/17 I'm not as brave - I've got 235/45/17 and 255/40/17

 

Lighter flywheel will do nothing other than help you off the line and quicker stoping. It doesn't add to your HP, etc. 14lbs is a decent weight for a street car if you decide it's worth the money to turn it down. Don't look at the flywheel - investigate a recirculation system for your turbo system. Rather than venting to atmosphere you take the compressed air and send it back to the intake side of the compressor. You really should do this anyhow if you are running the stock computer....

Don't waste your time with a 2.5" exhaust - go with a 3" or don't bother - you already have a 2.5".

Custom downpipe is a good idea but you'll have to modify your flange to go from 2 3/16" (T3 turbo outlet) to 2.5" then I would bump the 2.5" to 3" after the first bend on the way down.

Not sure why you would want to modify the wastegate on a stock T3.... unless you are talking about the wastegate actuator....

The S130 is one of the very few cars IMHO that looks really nice in the two tone - not many cars look good with it. The blue/silver and red/black are my two favorites - nice pick

A different Dizzy isn't going to do anything for your performance. The '81 uses a crank angle sensor - the '82-83 uses an optical wheel. The only advantage to swaping to the optical wheel is if you go with an after market ECU you can change the optical wheel to support sequential injection and distributorless ignition.

The cam from the P90 is stock. If you want to upgrade get the cam from the P79 "A" grind.

 

The cam is a. "A grind" smitty really hunted down through the junk pyle of scrap to find one. . . And my bad on pipe size ment 3 got a lot of crap floating around . . . . They are modifying the turbo have no clue what's going on but these guys are the experts with turbos. . . . . . Know the turbos are expensive but the 1900.00 price tag of they're cheapest recomend um no frigging way later maybe. The dizzy I have no clue this is where I get lost I'm a n/a kinda guy smitty knows what I'm looking for and he did say this dizzy will work with a more modern ecu set up why I just said "f" it and let them get it together dyno and go from there.

 

The rims smit got are all 14 to 15 nothing special however in the bay of death lays a 16000 mile 82 well twisted and smeared hulk of a 82. . . . . . Its got a set of beautyful chrome 5 spoke mags looks factory with the "Z" centers. . . . I got to move crap and pallets out of the way to see if all 4 are undamaged did look like 15s I can't find a good company selling the 16s. . . . Or 17s any recs?

 

Now off to bed sorry for the mix bag of numbers P90 . . . P79. . . N47 . . . T5. . . T3. . . . Lil overwhelming right now

 

You should be able to get your turbo transformed into a T3/T4 for around $500 - GPop shop is a good place to check. I'm sure NismoPick can give some more insight. That's one of the best bangs for your buck. There isn't any sense in spending any money on the stock turbo that I can see...

 

For clarification's sake (maybe I haven't followed all your posts?), who is "the hermit" and "Smitty" that you always talk about?

I've said this before... these mechanic guys you are dealing with sound like they are happily robbing you.

Indeed... there's usually at least one turbo shop in every big city (contact a diesel shop if no luck... they will know of one). The most simple and cheapest turbo upgrade is to convert the stock T3 into a T3/T4 hybrid for ~$500. Any other turbocharger, expect to do some mod's to make it work. FricFrac's Holset is probably the next easiest choice as quite a few Z guys have done the swap and have lived to tell about it.

 

They are the same. Lol hate dropping names. . . . . But he is a third party advisor so I'm getting ear fulls from both sides on how to do the turbo. . . . . Smitty says to do the hybrid. . . . . He is a former scca builder. . . . . . Then the guys from the shop are pulling me to the mega squirt and the high power turbos and majior mods. . . . So the engine is currently a long block right now. . . . . Now I have to decide what turbo unit to use so they can ready the car for final assembly. . . . . 1596.21 so far spent on tottal rebuild . . . . 3000.00 for paint and body work. . . . . So I can pull another 1500 for turbo and exhaust . . . . They said they could do the hybrid "seems they don't want to" but they are pushing the gt 30 turbo unit. . . . Ill look it up on the website and give ya the details. . . .

 

Ok now the way it reads it will bolt up with a spacer to the flange on the factory manifold. . . . . It has an internal waste gate. . . But I will need to go aftermarket with the ecu. . . . .from what they are saying mind you I'm clueless on turbo engines

 

I don't mind being raped on prices. . . . . . Wife works for westinghouse and I'm in USX steel. . . . So really don't care we bought the camero tottally sucked then she bought the vette welp just another 350 not really that quick. . . . I'm looking for the holy **** stain so If the GT30 doesn't need a alot to put on and I can run pump gas and is reliable ill spend the 1900. . . . Thought this was going to be fun lol nope ! Talking to the shop is like an 80yr old talking to geek squad. . . . .thanks for the input