z6 head on d15b2 block?
01-10-2005, 08:55 AM
#31
3.0 BAR
Join Date: Aug 2003
Location: NE-PA
Posts: 4,666
Re:z6 head on d15b2 block?
But here's an idea if you want to save money or are on a budget: Try swapping in a set of a6 pistons...they're dished so it'll drop the ratio a bit. Downside is they also sit below the deck a bit as well, but hey...it lowers your rotational mass i guess, slighly better rod to stroke ratio lol. And as far as rod to stroke ratio goes, the d15 does have the better ratio out of the d-series, so you can rev em slighlty higher.
01-10-2005, 09:39 AM
#32
1.5 BAR
Thread Starter
Join Date: May 2004
Location: Westminster,MD
Posts: 1,032
Re:z6 head on d15b2 block?
well my idea for buying the head fell through...so here's what i'm gonna do... since i'm still in highschool (last year thanks god) I can only make so much money..so i'm gonna go ahead and continue with turboing the stock b2 and run low boost..just so i can have some fun..then when i begin working full time in the summer..i'll look into an engine swap and building it up nicely..it just makes more sense that way thanks for all the input guys
01-10-2005, 09:53 AM
#33
1.5 BAR
Join Date: Jul 2004
Posts: 1,437
Re:z6 head on d15b2 block?
Originally Posted by slo_crx1
Yeah, i mean you can run 8 pounds on a stock b2 bottom end...if you wanna crazy retard your timing to keep from blowin your ringlands apart 
Hell, i used to run a 13.5:1 d-series on pump gas and toulene, but i still ended up retarding the timing a good deal even without any boost, just to keep it from blowing apart. If you want to run higher boost numbers, build the bottom end instead and use the built z6 head. Then you can run your 8 pounds all day, but i'm just sayin that i've seen what those bottom ends can do, and stock is not that good on those. They have the weakest rods, cranks, and pistons compared to a a6 or z6. You ever take a look at those rods man? I've seen twizzlers thicker than those things 
Hell, i used to run a 13.5:1 d-series on pump gas and toulene, but i still ended up retarding the timing a good deal even without any boost, just to keep it from blowing apart. If you want to run higher boost numbers, build the bottom end instead and use the built z6 head. Then you can run your 8 pounds all day, but i'm just sayin that i've seen what those bottom ends can do, and stock is not that good on those. They have the weakest rods, cranks, and pistons compared to a a6 or z6. You ever take a look at those rods man? I've seen twizzlers thicker than those things Upon reflection of my above post, boost the b2 stock, you'll end up blowing it up anyways and no point to waste the money on the headgasket and such for the z6 head swap and you'll be impressed with the power that it will make boosted im sure. (considering you'll be going from 80 to the crank to probably like 120-140 to the wheels. If you're going to spend more than $500 on a motor down the road look into getting a ls long block. and then start parting together the rest of the stuff for the b series swap. B series swaps...cost a little bit more? yes. Worth it? yes. You can rock out 250-300whp without a problem on a stock b18a1 vs. having to build the ---- out of a d series in order to successfully break past 250 (in most cases).
01-10-2005, 03:27 PM
#34
3.0 BAR
Join Date: Mar 2003
Posts: 21,479
Re:z6 head on d15b2 block?
^^^I'm with this guy, except they do make aftermarket pistons for the D15.
8psi isn't ----, I don't care what turbo you're running. If your motor blows at 8psi you had some serious tuning problems and shouldn't have been running boost to begin with. I'd kick myself in the ***** with my third leg if my motor blew at 8psi.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
8psi isn't ----, I don't care what turbo you're running. If your motor blows at 8psi you had some serious tuning problems and shouldn't have been running boost to begin with. I'd kick myself in the ***** with my third leg if my motor blew at 8psi.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
01-10-2005, 06:03 PM
#37
Guest
Posts: n/a
Re:z6 head on d15b2 block?
theres a guy over at sohchonda.com that goes by zer0daze he has a d15b7 block with y8 head giving 10.7:1 compression and he boost 9psi 200whp daily no problem, reving up to 8k on a reg basis lately hes been known to turn the whick up to 12psi
he also is a uberdata mad man and has spent alot of time on the dyno getting everything right so it just goes to show you that like the guy above said, the tune is the key not D15s being weak, thats a horse ---- cop out that people that dont tune their ---- well use when they break 4 rods on 9psi
he also is a uberdata mad man and has spent alot of time on the dyno getting everything right so it just goes to show you that like the guy above said, the tune is the key not D15s being weak, thats a horse ---- cop out that people that dont tune their ---- well use when they break 4 rods on 9psi
01-10-2005, 07:54 PM
#38
1.5 BAR
Thread Starter
Join Date: May 2004
Location: Westminster,MD
Posts: 1,032
Re:z6 head on d15b2 block?
like i said i'll run the stock b2 boosted til i start working full time after school lets out.. then yes..i'm gonna swap and build something sexy.. i'll be pulling in 500 a week with no bills to pay except insurance and ---- so i can handle it
01-11-2005, 12:03 AM
#39
Guest
Posts: n/a
Re:z6 head on d15b2 block?
Originally Posted by absolutezroo
like i said i'll run the stock b2 boosted til i start working full time after school lets out.. then yes..i'm gonna swap and build something sexy.. i'll be pulling in 500 a week with no bills to pay except insurance and ---- so i can handle it
