Aaron Posted September 22, 2003 Report Share Posted September 22, 2003 i get my motor back from Gheddis Auto machine in about a week. heres whats done, going from bottom. new crankshaft, old one was damaged due to driving with bad bearing new REALLY expesive bearings, forgot brand bored .030 over. new forged aluminum pistons, keeping with stock compression decked block and heads, raising compression slightly rebuilt heads 5 angle vavle job, new guides and seals new timing belt and pulleys old cams, they were in awesome shape do to my mobil 1 and 3k changes and thast about it, no head porting cuz itd be way too expensiv, so later on i will one thing tho. it has been a rumor that my cam timing could be off. my car does idle bad, and my low end is absolutely terrible. but my high end is kick ass, i havnt felt another DOHC that has nearly the high end pull of mine. so my question is is will my car be faster or slower with the rebuild? cuz cam timing is being set to stock locations, otherwise he wont warrenty the motor. Quote Link to comment Share on other sites More sharing options...
sonyman87 Posted September 22, 2003 Report Share Posted September 22, 2003 i imagine your topend would be awesome!!! as far as lowend i would almost forgo the porting of the Headers and keep it stock, and being bored over it will help with torque.. if you do plan on porting the headers go to a junkyard and pick up an old pair and rework those and swap them out. Just incase you dont like it you could always sell them over ebay or here. Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 22, 2003 Report Share Posted September 22, 2003 I wont be that much faster. Bored .030 over is not much, and you maybe raised compression by .1 or .2 Robby Quote Link to comment Share on other sites More sharing options...
Aaron Posted September 23, 2003 Author Report Share Posted September 23, 2003 thats why i want P&P heads is for the high end. my low end sucked ass as it was, and i loved it!!! so well see, ill keep my options open. the guy at the shop said he guesses about 9.75:1 compression with about 220hp(without my mods at the crank) so well see, id love to have it make 220! Quote Link to comment Share on other sites More sharing options...
Pselus Posted September 23, 2003 Report Share Posted September 23, 2003 wait so all that junk and you're still only making 10 more hp at the crank than a 3.4? Quote Link to comment Share on other sites More sharing options...
Bolt_Crank Posted September 23, 2003 Report Share Posted September 23, 2003 5 HP more... he's got a 5 speed, and I'm pretty sure it's factory.... Quote Link to comment Share on other sites More sharing options...
Aaron Posted September 23, 2003 Author Report Share Posted September 23, 2003 all that junk is a stock factory rebuild. the only thing im doing to it is the decking that raises the compression slightly. the biggest thing will be how smooth the car runs compared to the clicking i had. it wont be too much faster, but as the guy said, i could turbo this car on 14psi and hed still warrenty it. and thats pretty impressive. and 220 would be 10 more, cuz i had 210hp/215tq stock Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 23, 2003 Report Share Posted September 23, 2003 you could turbo it at your compression ratio and watch a head fly off Robby Quote Link to comment Share on other sites More sharing options...
skalor Posted September 23, 2003 Report Share Posted September 23, 2003 you could turbo it at your compression ratio and watch a head fly off Robby Thanks for the laugh...that was a good one!! Quote Link to comment Share on other sites More sharing options...
Aaron Posted September 23, 2003 Author Report Share Posted September 23, 2003 timg's doing it, thats what the guy said, 14psi and hed warrenty it. Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 23, 2003 Report Share Posted September 23, 2003 timg's doing it, thats what the guy said, 14psi and hed warrenty it. TimG isnt running 14psi. Hes up to like 7psi Robby Quote Link to comment Share on other sites More sharing options...
Aaron Posted September 23, 2003 Author Report Share Posted September 23, 2003 on an old motor, on a brand new motor, im sure it wouldnt have a problem. Quote Link to comment Share on other sites More sharing options...
Bolt_Crank Posted September 23, 2003 Report Share Posted September 23, 2003 better make sure your heads are torqued, lol j/k Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 23, 2003 Report Share Posted September 23, 2003 on an old motor, on a brand new motor, im sure it wouldnt have a problem. Yeah its brand new, with higher than stock compression. If you had bowled out the combustion chambers, lower compression, then maybe. At 14psi, Im willing to bet there would be a lot of knock at high rpms Robby Quote Link to comment Share on other sites More sharing options...
Guest RedCutlassSL Posted September 23, 2003 Report Share Posted September 23, 2003 aaron, you silly fool, you can't run 14psi of boost on that engine Quote Link to comment Share on other sites More sharing options...
toastemcutlass Posted September 24, 2003 Report Share Posted September 24, 2003 i know what you mean about thinking you have a 3.4 that pulls harder then anybody elses in the high rpms, and slow or slower from about 0 to 25. it seems like anything i do intake wise is reponsible for this. and the other thing is how many miles was on you motor b/f? just wondering even though they are 32 dollars a peice about the lifters. the reason i ask is my motor now has 125 on it and good oil pressure but i cant keep it in high rpms for long or one or two of them colapes. :x Quote Link to comment Share on other sites More sharing options...
Aaron Posted September 24, 2003 Author Report Share Posted September 24, 2003 mine actually picks up at about 15-20mph, thats a 5-speed for ya. and i dont knwo about your rpms, i was shifting at 7200 at the track and it was running awesome, throwing down good times and such. i had 127k the guy said 14psi wouldnt be a problem, and i kinda sorta trust him, considering he owns an auto-machine shop. so how can the hondas and acuras hold in upwards of 18psi? Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 24, 2003 Report Share Posted September 24, 2003 so how can the hondas and acuras hold in upwards of 18psi? LOW COMPRESSION!!!! Robby Quote Link to comment Share on other sites More sharing options...
Guest RedCutlassSL Posted September 24, 2003 Report Share Posted September 24, 2003 aaron, do us a favor and ask your mom how many times she dropped you as a child Quote Link to comment Share on other sites More sharing options...
Aaron Posted September 25, 2003 Author Report Share Posted September 25, 2003 she cant count that high, but her 12 gauge holds 8, she thinks, or whatever comes after 11, rounds!!! Quote Link to comment Share on other sites More sharing options...
Vegeta Posted September 25, 2003 Report Share Posted September 25, 2003 OMG, i have to back up aaron on this. Your compression vs boost holds no water...at all. You can design a 12:1 compression engine running 25 PSI if you want. Its been done, so take your old school ideas back to the 70s and leave the "can't be done" to people with some vision in the forward direction. Hemi head design, central spark plug, infinite cam timing adjustments...hmmm. I would like to see 10:1 and 20 PSI someday. I think 9.75:1 and 14 PSI would be pushing it for the stock rods but thats about it now that he has forged pistons. If that crank is balanced and he breaks it in properly, that could be a great base engine for some upgrades. Head work actually brings the low end up quite a bit, more noticable than top end actually (still gets top end gains). Id hate to see the bill for new guides. I just got a new set of heads off ebay for 76 bucks shipped:P Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 25, 2003 Report Share Posted September 25, 2003 Yeah, I understand it CAN be done, I was just saying not with his stock compression and setup. I know theres plenty of stuff you can do to make it safe to run high CR and boost, but just throwing 14psi on a motot with almost 10:1 CR and no other internal mods wont work for long Robby Quote Link to comment Share on other sites More sharing options...
kiwi133 Posted September 25, 2003 Report Share Posted September 25, 2003 How long is the warrenty good for? And what is the grand total of this rebuild? Quote Link to comment Share on other sites More sharing options...
Aaron Posted September 25, 2003 Author Report Share Posted September 25, 2003 ok priced just climbed 350 as they told me they installed all nbew guides, seals, and all 24 vlaves. all new. and my rods are new. it will be an awesome motor, perfect for a race motor, but i have no $$$ left for a turbo, so it wont happen. but id die for a turbo. and also, the crank is all new too, at a tag of 400$ :? Quote Link to comment Share on other sites More sharing options...
Aaron Posted September 25, 2003 Author Report Share Posted September 25, 2003 and it is a 3 year/30,000 mile warrenty, and he said he would warrenty this with boost, so long as i didnt run past 14psi. and i quote this from him: "this is a badass motor here. high revving, high power. i believe this car has a lot of potential, getting this thing above 350hp N/A wouldnt be too difficult. i have no doubt you can pull off a 14.2 at sea level" Quote Link to comment Share on other sites More sharing options...
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