Jersey

It does seem to be a nice match for the L6 327. I just wish i had another hybrid to compare it against once i get the swap done on his '78. When i get done with it, i'm sure it's gonna move out. We'll see. I actually hope it's verrrryyy slooowww The next performance upgrade i do will be slicks or DR's for the track. I can't keep the darn wheels on the ground as it is... with the little T3! I think i'm going to try and steer him toward spending the $ on tires rather than a flywheel because i'm sure traction is going to be a real problem for him. He had a very hard time not spinning in the heavier '83 with just the T4/T3 and injectors. Lighter '78 and more mods are going to be added... he'll never hook.

Hope they turn out to be great results Yo. Time will tell i guess. Funny thing is, this is the cousin that got my involved with Z's at the age of 15. He had a '77 with a bunch of mods including the LW flywheel. When i turned about 18-19, he decided to sell it and i bought it from him - my first Z and she screeeeamed back in '88! So, he does know how the feel is for the LW flywheel and enjoys the quicker revs, even if you have to "manipulate" the throttle/clutch a bit and knowing full well that it doesn't increase HP. Here's a pic of his/my old '77 from 1988... damn miss that Z! Also, I cannot for the life of me find these enkei rims that i had. Even Enkei has no idea where to find them! owell....

It makes a bunch of power Yo but i think we're not seeing the true potenetial out of it due to dragging the extra load of the ZX around. It should really shine once installed in the '78 with a 45*DP and full 3" exhaust. We were running it like that in the '83 with the stock DP and stock ZXT exhaust. Forgot that we installed the 370cc injectors as well. It blew me away when i found we could run that level of boost without an IC also. She does start to ping at 17psi while dragging 4th gear out. I wish i had the extra $7-800 for the hybrid. My wimpy T3 isn't going to last mich longer trying to hang with him! lol. It seems REAL efficient Sleeper. Once we get his Z done, we're both going to get our asses to a dyno to see where we're both at. That should really show how his T is performing, on paper. I think if he goes with the LW fly, he should go Fidanza like you Yo. Sounds like the best route. I found a few middle size NPR IC's which i think would be a better investment for him at this stage so we'll see. Guess he figures since the motor's out on the stand now, why not do the flywheel instead of ripping the trans out later. Ahhhh... it mist be nice to have extra cash!!! I need my Z to be faster!!!

Jon, thanks for the info and, i think you just scared me enough to go the other direction i was exploring - Fidanza The sorry part about this all is that it's not for my Z, it's for my cousins '78! I'm getting ready to do his turbo swap and when it's all said and done, his Z should spank my '73. He's going T3/T4(50trim E wheel in a machined B housing, oil/water center, bulletnosed, Stage III clipped in a .63), 370cc inj, MSD pump, NPR IC, 3" exhaust, 45* DP, T5, 3.54, LW flywheel, new top end (P90A), poly bushings all around.... and a few more things i can't think of. Damn.... i need to de-tune his while i'm building it!!! Anyone have like a 20mm TB around??? Only thing i have on him is weight. We just pulled the motor out of his '83ZXT donor last week to send the P90A out to get done but while we were getting it running perfect before the swap, we put the T3/T4 in it and MAN is that thing EFFICIENT!!! We can run 16psi with no IC and pump 93 gas without pinging! Oh man... i need to get his swap done and get my '73 back in the garage! Thanks again Jon for the info and quick responce.

Is anyone using, or has used, one of these 240mm 13.5# flywheels? If so, comments? Thanks in advance.

Cody - i believe only the '83's are 24* and both the '81 & '82 are 20*. Wish i had my cam out of my '82L28ET P90 right now because i have my cousins '83L28ET P90a cam sitting on the bench. I could've snapped some comparison pics of it to post. If i can find some good shots of a P90 cam on the net, i'll try and duplicate the picture using the same angle of the P90a cam.

Thanks. I really need to do a dyno one day and seeing others results helps.

ahhh.... now i see it moby, thanks. Strange it's done that way, no? Now i'm going to have to take his sheet and edit it

Hey Yo... first off, nice sheet, and to you also CU. Yo - why doesn't your HP and tourque curve crossover @ 5250? It looks more like 4600?

24degrees for the 83zxt.

Not a very safe one or one that will tell you if they're they're spaying perfectly but, just a suggestion i made here.

Hey John - They're probably not bad, they just need to be cleaned so the pintle valve can move freely. If you have someone cranking the motor while you're up front watching the injectors, tap the side of the injector lightly while it's spraying. It may just clean the pattern up a bit. Techtron (sp?) seems to have worked well on my 370's. They're all atomizing nicely now

525, I commend you on sticking to your guns (for the time being) on staying with your 250hp "limit" but, like it always happens to me and i'm sure MANY of the other power/speed like myself on this board, sooner or later it'll seem like something's wrong with your Z because it's not as fast as it used to be. Fact is, she's not getting slower, you just start getting used to the power of your Z and want to push it jusssstttt a little further It's just the nature of the beast i think. I know you've been through a lot with this whole swap, and we all know you became a "hybridz master" in about a month with the amount of posts you have under your belt , and that you've promised your girl that once you reach this "limit" of yours, you'll be "DONE" but, i'll almost bet that if in 6 months you reach your "goal", you'll be doing just "ONE MORE THING..." I know from first hand experience! haha. 50hp...hell, that's only 5 more #'s of boost. That'll put you at 15psi. I sure hope she doesn't surge on you one day and hit 17-18psi because then you'll be trying to figure out how to run safely with the needle on that part of the boost gauge! Anyway, nice #'s! Congrats.

HAHAHAA LOLOL... Funny 525 -

Congrats 525! I was a little off but i bet next time you'll be closer to my guesstamation #

450hp

Nope, not sure.

OUCH

I was leaning at low 13's, high 12's. Bring that darn IC over here 525, i'll install it for ya!

There's a bunch of places online that carry it, just need to search around. I think i bought mine from importpoweronline and it was on sale for $105 at the time. From what i remember, i had to make a custom bracket. One thing, make sure you isolate it good with rubber for dampening. Yes, this pump will be more than enough for you to reach 250hp at the wheels, in MY opinion. The MSD is only proven by MSD to a certain pressure and when speaking with them, they couldn't tell me how it would perform to more than what they have documented. Walbro has the graphs all layed out and prove that thier pump works at levels i may, or may not, need one day. I'm not saying the MSD wouldn't perform to the goal i want (if i ever figure out what that goal is! ) but having the proven data in front of me made my choice.

I do know that the MSD2225 is not the same as the Walbro GLS-392. Also, the Walbro can be had for about the same price as the MSD. Just in case anyone is telling you differently.

I think they are the same 525 but not 100% sure. There was a post here not to long ago about that. This is my opinion on this whole FMU/larger injector topic - I'm not rich so, i think why spend hard earned cash on something that you'll be pulling out and placing on the shelf after one of your soon upgrades (because you know boost is addictive and once we go fast, we just want to be faster - my case anyway) when you can spend just about the same amount of $, have your Z run decent after a few adjustments and not have to remove this item for waste for a longer period of time? I guess if you sell items as these, it's a great way of making $. Gets the customer to come back sooner to buy more stuff. Me, i try to spend my "extra" cash on something that wont be useless after one of my next upgrades and that i know that can be incorperated into the performace stage that my Z is currecntly in. I guess if you're set in your mind that a certain HP is going to be exactly what you want forever, buying all the items that can take you exactly to that point and no further, items such as an $200 FMU, is for you. Me, 12.8 isn't cutting it. I'm not sure 12.5 or 12.2 will either if i'm ever as fast as some of you but i do know that my 370's wont restrict me from reaching those #'s, as i know the 260's would. Just my opinions.

In a week or so, i'm going to be making another 45degree DP for my cousins '78. Swapping in an '83 L28ET with the T5 and a 3" exhaust. I'm considering documenting and taking precise measurements to make more DP's for others and just have a few questions before i think about taking this thought any further. 1 - Should i weld in an O2 bung for the sensor? 2 - I know a bunch of us go to 3" exhaust but considering that you can only use 2.5" out of the T3, should i just make the whole DP 2.5" like i did mine or flare it to 3" after the flange? I do know flaring it would take more time and cost more. 3 - I would make them all out of stainless but should i consider aluminized? I would think stainless would be better under the high heat conditions and wouldn;t rust eventually like the stainless. I don't even think the stainless would cost much more than the aluminized, but i'd have to investigate further. 4 - Is everyones 4 bolt exhaust flange the same pattern? My cousin had his T3/T4 hybrid built by Majestic and they used a weird 3 bolt exhaust housing (Saab/Volvo?) Wongering if his is just an oddball. 5 - What would you consider to be a FAIR price for say, a full 2.5" 45degree (or close) SS DP with O2 bung and flange? I know $10 each sounds good but.... These are just some peliminary thoughts and ideas before considering making these and wanted to know what options would be most in demand. Any ideas/input would be appreciated. Thanks.

Probably enough pressure to blow the stocker 260cc'rs apart Bernard. LOL. Why waste $ on a bandaid and limit yourself with the 260's when you can just about the same exact $ and have much more room to increase power? I must be missing something here. Maybe that the FMU item is a lot less work to install than to install injectors and making a/f adjustments via a/f meter and other options? I guess bolt-on applications are the way of today. It was an easy decision for me when it was my turn at the build - Aprrox $90 for 6 370's and another $110 for the Warlboro pump, which gives me room to grow - Total=$200 Leaving the stock, old, half worn pump (no charge) and $200 for an FMU type unit, which will limit me shortly when i go T3/T4 and will possibly cause the stock 260's to spray erractically - Total=$200

This is why i made the decision on using larger injectors rather than increasing pressure to the stockers... weather my decision be right or wrong - You can only go so far with the stock turbo injectors. With the 370's, i have room to upgrade more components before spending more money in that department. You can get larger injectors for cheaper than $200 and not have them running at 100% duty cycle, spraying erratically, like you would eventually be doing with the stock injectors by squeezing increased amount of fuel pressure through them under boost. Just my opinion on the subject. I'm on the same page as Nathan.