need help/opinions on what to do with engine

fastgeek · 06-13-2007, 09:49 AM

I've got an '87 GT with 108,000 miles on the stock bottom end. My mods I currently have are: Windsor Jr. heads, f303 cam, Cobra U/L intake, Comp Cams 1.6 roller rockers, 24# injectors, Mass air, 70mm TB, 3:73's, ZEX 125 dry nitrous shot.

I want my car to just rip, and I'm thinking I should start over and redo the entire engine. I'm wondering what I should do, and if I can reuse any of the parts I currently have. I'd probably be willing to spend up to 3K, but I'd like to see at least 325 RWHP N/A.

Please give me some recomendations on what I can do, and what I can reuse. Stroker, 306, any suggestions are helpful. Thanks alot.

USMC302 · 06-14-2007, 01:53 PM

You can reuse it all. You should be close to your N/A goal already. Could get a better flowing intake and maybe get the heads ported.

bailey_57 · 06-14-2007, 04:54 PM

don't touch the bottom end until you have to. mine has 130,000 and is running strong with edelbrock perf rpm heads and intake. and only the ecam. i'd dyno it first. then decide what to do. just my .02

tmoss · 06-17-2007, 09:07 AM

professional port on the heads and a bigger cross section intake (not too big) and you should get there.

Dark_5.0 · 06-17-2007, 11:49 PM

I struggled to make much more than 300RWHP with the cobra intake and mine was ported.

This was with an E303 cam and some excellent heads.

Coupe50h · 06-26-2007, 08:23 AM

I would get a custom tune for the n/a, and the n20. Also If I had 3k to drop right now without getting a divorce, id stick in an auburn pro diff with 31 spline's. the rest would go on rebuilding my t-5 after I blew it to pieces

USMC302 · 06-26-2007, 10:04 AM

Got a buddy who swears against Auburn, blew two of them running 11.10's. Customer Service wouldn't even help.

fastgeek · 06-26-2007, 10:22 AM

Thanks for all the replies guys. I switched my thinking and ordered a Kenne Bell 2.2 Blowzilla w/Flowzilla inlet 10# boost. 42# injectors, 90mm LMAF, 80mm TB, Snow stage to meth injection. What do you guys think about the setup now? I should be safe with the stock bottom????? I'm just worried about getting it on the dyno, what should I pull it to.........5500?

Coupe50h · 06-26-2007, 10:42 AM

Quote:

Originally Posted by USMC302

Got a buddy who swears against Auburn, blew two of them running 11.10's. Customer Service wouldn't even help.

Yea I should of have said 'eaton posi, or the 'detroit locker, the auburn came to mind first.
The newer auburn pro's seem to hold well, better than the old ones, but yea 11.10's is gonna be hard on anything you stick in there, and I believe the auburn is not rebuildable? We need rebuildable parts for our hobby lol.

Fastgeek, keep us posted, with good tune, it should make massive torque, and good hp.

06-13-2007, 09:49 AM	#1
fastgeek Registered Member Join Date: Jun 2001 Posts: 2	need help/opinions on what to do with engine I've got an '87 GT with 108,000 miles on the stock bottom end. My mods I currently have are: Windsor Jr. heads, f303 cam, Cobra U/L intake, Comp Cams 1.6 roller rockers, 24# injectors, Mass air, 70mm TB, 3:73's, ZEX 125 dry nitrous shot. I want my car to just rip, and I'm thinking I should start over and redo the entire engine. I'm wondering what I should do, and if I can reuse any of the parts I currently have. I'd probably be willing to spend up to 3K, but I'd like to see at least 325 RWHP N/A. Please give me some recomendations on what I can do, and what I can reuse. Stroker, 306, any suggestions are helpful. Thanks alot.

06-14-2007, 01:53 PM	#2
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	Re: need help/opinions on what to do with engine You can reuse it all. You should be close to your N/A goal already. Could get a better flowing intake and maybe get the heads ported. __________________

06-14-2007, 04:54 PM	#3
bailey_57 Registered Member Join Date: Mar 2000 Location: Berwick,Pa Posts: 127	Re: need help/opinions on what to do with engine don't touch the bottom end until you have to. mine has 130,000 and is running strong with edelbrock perf rpm heads and intake. and only the ecam. i'd dyno it first. then decide what to do. just my .02 __________________ '89 GT hatch back performer rpm intake, performer rpm cylinder heads, fms e-303 cam, kirban adj fp regulator, holley 65mm tb, harland sharp 1.6 roller rockers, alum driveshaft, 3.73 gears (283 rwhp, 303 rwtq new numbers with new heads)

06-17-2007, 09:07 AM	#4
tmoss Registered Member Join Date: Mar 2003 Location: Saint Louis, MO Posts: 634	Re: need help/opinions on what to do with engine professional port on the heads and a bigger cross section intake (not too big) and you should get there. __________________ Tom (Torque) Moss 88Gt 5spd Vert, FLowmaster Catbacks, stock cam advanced 4° @ 108.5° ICL, NMRA prepped GT40P heads 1.85/1.55 valves and 1.7 rockers, MAC P headers Jet-Hot coated, 97 Exlporer intake (ported lower), TB and injectors. 277RWHP/330RWTQ (SAE). http://www.fastlanecars.com/

06-17-2007, 11:49 PM	#5
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: need help/opinions on what to do with engine I struggled to make much more than 300RWHP with the cobra intake and mine was ported. This was with an E303 cam and some excellent heads. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

06-26-2007, 08:23 AM	#6
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	Re: need help/opinions on what to do with engine I would get a custom tune for the n/a, and the n20. Also If I had 3k to drop right now without getting a divorce, id stick in an auburn pro diff with 31 spline's. the rest would go on rebuilding my t-5 after I blew it to pieces __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

06-26-2007, 10:04 AM	#7
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	Re: need help/opinions on what to do with engine Got a buddy who swears against Auburn, blew two of them running 11.10's. Customer Service wouldn't even help. __________________

06-26-2007, 10:22 AM	#8
fastgeek Registered Member Join Date: Jun 2001 Posts: 2	Re: need help/opinions on what to do with engine Thanks for all the replies guys. I switched my thinking and ordered a Kenne Bell 2.2 Blowzilla w/Flowzilla inlet 10# boost. 42# injectors, 90mm LMAF, 80mm TB, Snow stage to meth injection. What do you guys think about the setup now? I should be safe with the stock bottom????? I'm just worried about getting it on the dyno, what should I pull it to.........5500?

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