Guest zspeed260 Posted November 17, 2004 Share Posted November 17, 2004 what kind of power will a stock zxt give my 74 260? with just a straight swap...im debating whether to pump up the turbo motor or just do a straight swap and then upgrade from there.....if i do a straight swap what should i do to the motor to prepare it for dependability? thanks for the help..... David Quote Link to comment Share on other sites More sharing options...
Guest Magnum Rockwilder Posted November 17, 2004 Share Posted November 17, 2004 An L28ET w/ a manual boost controller, ghetto intake, and open exhaust should put you in the high 12's at around 110mph. Quote Link to comment Share on other sites More sharing options...
Guest zspeed260 Posted November 17, 2004 Share Posted November 17, 2004 that fast? how come a stock zxt cant run that? Quote Link to comment Share on other sites More sharing options...
Guest 240zJake Posted November 17, 2004 Share Posted November 17, 2004 that fast? how come a stock zxt cant run that? Weight...i think Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted November 17, 2004 Share Posted November 17, 2004 well it takes a tad more then that to get that kind of trap speed i think. but some i guess have done it. but the reason why older Z cars run faster is weight. my blue Z is pretty much a staight swap. but in a 77 280z, so heavier. at stock boost it was like 168rwhp and 198lbs, and stock boost was 4psi. ran 13.9 and car weighed in at 2580. pretty much all stock too. mike Quote Link to comment Share on other sites More sharing options...
Guest Magnum Rockwilder Posted November 17, 2004 Share Posted November 17, 2004 Notice I said "boost controller". 4 psi isn't much at all, so you have a lot of room for improvement. That's where 90% of the power comes from and a MBC can be had for $5... plus the cost of a boost gauge. A ghetto air filter and open exhaust will round out the package and make 12's possible. Quote Link to comment Share on other sites More sharing options...
Guest zspeed260 Posted November 17, 2004 Share Posted November 17, 2004 so for under 200 rwhp i could run 13's? ....thats awesome....and not too expensive...........im real new to all this..... Im going to have a bunch of questions and im sure a lot of people will get mad at me... My S2000 would run 13's but no torque..im kinda anxious to feel some torque .. Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted November 17, 2004 Share Posted November 17, 2004 well i ran a real cheap and ghetto (but nice) boost controller that i ran on that car for awhile, yes it did help but after you turn the boost up you gotta get more fuel in there.. but your right, 12's are very easy, even more if your Z is a 240Z. mike Quote Link to comment Share on other sites More sharing options...
Guest zspeed260 Posted November 17, 2004 Share Posted November 17, 2004 well 12's would be nice...my dad has 03 wrx...stage 4 turboxs and he runs mid 12's consistently...i hope to keep up with him...he has to have 400 hp to do that though...i will only have how much? Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted November 17, 2004 Share Posted November 17, 2004 well 12's would be nice...my dad has 03 wrx...stage 4 turboxs and he runs mid 12's consistently...i hope to keep up with him...he has to have 400 hp to do that though...i will only have how much? if you do the sorta basic stuff with say a nice T3/T4 turbo, 300rwhp should be pretty easy and mid 12's should be very easy to get. mike Quote Link to comment Share on other sites More sharing options...
Guest zspeed260 Posted November 17, 2004 Share Posted November 17, 2004 do you have any good links to write ups on the swap? thanks for all the info too.. David Quote Link to comment Share on other sites More sharing options...
Afshin Posted November 17, 2004 Share Posted November 17, 2004 While high 12's is certainly achievable with stock motor, you still need a few other things to get your 260 in that range: -Intercooler -larger injectors, (you may get close with a rising rate fuel pressure regulator and stock injectors). can adjust AFM flap to allow for 370cc injectors on the cheap. -good fuel pump -T3/T4 turbo (stock can get close, but may not last long, will be inefficient with high heat causing more stress on turbo and engine) everything needs to be working properly (often not the case in old cars modified on a budget). -high flow exhaust and boost controller, gauge and air intake as already mentioned -need for head rebuilt (basic) if not already done may come up soon ( I would do it first). I think more realistic with slight mods on full stock system is mid to high 13's (easy to do and very reliable). That's still quite fast, and if it all works out, (not too hard, but always more work and money than one expects) you can slowly do the rest of the mods and get to be consistently in the 12's Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted November 17, 2004 Share Posted November 17, 2004 Oh boy here we go again.... Welcome to the turboZ swap. There are about a dozen ways to swap and setup the motor to go fast. Read some of the threads in this forum for the past two years or more and you will get TONS of info...even pictures and videos. I find myself urging to explain....again. Basic Swap --change nothing, muffler shop, and some creative air filter mount. 200rwhp, 220rwt $Cheap Stage 1 --same as above plus Grainger Valve to turn up boost, and a way to add a little more fuel if you go past 10psi. 220rwhp, 240rwt, $5-$200 Stage 2 -- ....and, bigger downpipe and exhaust, add intercooler, turn up boost a bit more 12-14psi, add a bit more fuel. 250rwhp, 275rwt, $400-$800 Stage 3 -- ....and, T3/T4 turbo (larger compressor), Programmable EFI and ignition, electronic boost control, 15-18psi, 300rwhp, 335rwt, $1200-$3000 Stage 4 -- ..and engine internals, bolts, head gasket, 18-20psi.....340+rwhp, 370+rwt, $3000 - $5000 *Don't forget brakes, suspension, and CV axles, after STAGE 1 *Add fuel using: hi-pressure-hi-volume pump, adjustable regulator, FMU, larger injectors OR all of the above. THESE ARE ALL ESTIMATES AND ARE OFF THE TOP OF MY HEAD. JUST ROUGH GUIDELINES FEEL FREE TO EDIT, GUYS!!!!! <<<FEEL FREE TO COPY/PASTE/REPOST MY STAGE INFO WITH EDITS>>> Quote Link to comment Share on other sites More sharing options...
Guest zspeed260 Posted November 18, 2004 Share Posted November 18, 2004 thanks for the info..i think i will just do a straight swap now..instead of waiting to build the motor.. good power fast, cheap and reliable is very good sounding to me Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted November 19, 2004 Share Posted November 19, 2004 Ok guys, how many days after the first drive will zspeed260 be asking about how to turn up the boost? I say 2 days. Good luck and let us know how the project goes. Here is my schedule. "I'm leaving it stock and reliable" - 1minute. 7-10psi in 2days 10-14psi in 2 months 14-18psi in 9months Quote Link to comment Share on other sites More sharing options...
Guest zspeed260 Posted November 19, 2004 Share Posted November 19, 2004 yeah yeah, you guys are prolly right..lol Quote Link to comment Share on other sites More sharing options...
Guest bastaad525 Posted November 20, 2004 Share Posted November 20, 2004 first of all I wouldn't count on 12's with just intake exhaust and boost controller, second of all, why you saying 4psi? you mean, as in the stock turbo runs 4psi? stock turbo should run 6-7psi, mine ran 7 when I had no boost controller. You can only turn it up to about 9-10psi with no I/C or your risk your motor. A 260 weighs 100-200lbs more than a 240, by the way. Fastes 240 I've seen without an I/C was Jersey's car, which ran a 13.3 at 10psi, stock everything, no I/C, 2.5" mandrel bent exhaust. And he is more the exception than the rule, as most others were higher in the 13's with same setups. I would count on high 13's in a 260 unless you really drive it well. He weighed his car at around 2300lbs. PS: in regards to Cygnus' post about the different stages of the swap, don't forget to get a BOV! This is even more important than the boost controller! Quote Link to comment Share on other sites More sharing options...
datsunlover Posted November 20, 2004 Share Posted November 20, 2004 Ok guys' date=' how many days after the first drive will zspeed260 be asking about how to turn up the boost? I say 2 days. Good luck and let us know how the project goes. Here is my schedule. "I'm leaving it stock and reliable" - 1minute. 7-10psi in 2days 10-14psi in 2 months 14-18psi in 9months[/quote'] Heh.. My buddy got his Volvo 850 Turbo and about 5 days later he's asking me.. "Hey.. how do I do that manual boos controler thing to my car? You know, fool it so it boosts' more?" Quote Link to comment Share on other sites More sharing options...
Afshin Posted November 20, 2004 Share Posted November 20, 2004 don't forget to get a BOV! This is even more important than the boost controller! actually the car has a factory BOV equivalent (different system than traditional BOV) that works quite well for boost up to 10-12 psi. So it does not need an aftermarket BOV until you exceed the factory system. Quote Link to comment Share on other sites More sharing options...
Guest bastaad525 Posted November 21, 2004 Share Posted November 21, 2004 ah I always forget about that dump valve... I run an '75 intake manifold and dont have that on there so it never comes to mind. Good point my mistake. Quote Link to comment Share on other sites More sharing options...
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