 7AFE TO 7AGE, FRANKENSTEINS 6G ST BUILD UP |
 Jan 26, 2009 - 4:12 AM
|
 
|
|
Enthusiast Joined Jan 26, '09 From massachusetts Currently Offline Reputation: 0 (0%)  |
i have officially made the journey from domestics to imports as i purchase my 97 celica. i refuse to drive anything the way i buy it, so heres what i've come up with so far......
the plans for my 7afe.... 4AGE (16 valve) head 2ZZ (11.25 compression?) pistons and rods jac knife the crank CRANE CAMS RPM 2600-6000; Adv. Dur. 292 Int./302 Exh.; Valve Lift .458 Int./.472 Exh.; Lobe Angle 110 deg.; PACESETTER HEADER OEM exhaust (less the resonator and cat) extreme port and polish on the head HKS valve springs HKS adjustable cam gears any ideas suggestions comments are enthusiastically welcomed..... |
 |
Replies
|
Jan 31, 2009 - 5:41 PM
|
|
|
Enthusiast  Joined Aug 10, '08 From Raleigh, NC Currently Offline Reputation: 0 (0%) |
QUOTE Kwanza26 Posted Jan 28, 2009 - 1:45 AM Some info first off... Use 4AG pistons. They fit the 7A and are much easier to find in a wider range of compression... 13:1 comp is too high for regular street use, unless you plan on building a straight race engine or something... As for rods... custom or aftermarket. Re-engineering 2ZZ rods is gonna cost a bit and not perform as well as aftermarket rods due to incorrect stroke ratios. As for the head... go for the 20V head. If you use the 20V head, you can use the existing 7A water lines... but if you use the 16V head, you'll have to redo everything. That said... I think you're biting off more than you can chew. Based on your research so far... you're just speculating when you talk about 250hp and such. FYI, a 7AGE hybrid in n/a trim doesn't make significantly more power than a stock 4A. Maybe 5-10 overall across the powerband in stock trim. Tuning for 200+ hp isn't amateur stuff... let alone 250. Toyota Formula Atlantic motors only make 240hp at 10,000 rpms. Granted they're 1.6 liters, but consider the build cost and tuning requirements of those engines and know that they aren't very streetable motors, then go back and reassess your goals. You're starting with a base motor that is 160hp at best (20V)... and are attempting to increase that by 100hp. It is no easy task and requires more investment than bolt-ons. If you're looking for power... turbo the 7A. If you wanna realistic power goals from a 7AG hybrid... around 180hp is more realistic and would still require a good deal of tuning. nothing to do with this topic, but the second generation Prius runs a maximum of 13:1 compression ratio -------------------- Trust me, I do this every day |
|
Jan 31, 2009 - 6:08 PM
|
|
|
Enthusiast Joined Mar 11, '06 From Way South Chicago Currently Offline Reputation: 0 (0%) |
QUOTE (silver6gc @ Jan 31, 2009 - 6:41 PM)  QUOTE Kwanza26 Posted Jan 28, 2009 - 1:45 AM Some info first off... Use 4AG pistons. They fit the 7A and are much easier to find in a wider range of compression... 13:1 comp is too high for regular street use, unless you plan on building a straight race engine or something... As for rods... custom or aftermarket. Re-engineering 2ZZ rods is gonna cost a bit and not perform as well as aftermarket rods due to incorrect stroke ratios. As for the head... go for the 20V head. If you use the 20V head, you can use the existing 7A water lines... but if you use the 16V head, you'll have to redo everything. That said... I think you're biting off more than you can chew. Based on your research so far... you're just speculating when you talk about 250hp and such. FYI, a 7AGE hybrid in n/a trim doesn't make significantly more power than a stock 4A. Maybe 5-10 overall across the powerband in stock trim. Tuning for 200+ hp isn't amateur stuff... let alone 250. Toyota Formula Atlantic motors only make 240hp at 10,000 rpms. Granted they're 1.6 liters, but consider the build cost and tuning requirements of those engines and know that they aren't very streetable motors, then go back and reassess your goals. You're starting with a base motor that is 160hp at best (20V)... and are attempting to increase that by 100hp. It is no easy task and requires more investment than bolt-ons. If you're looking for power... turbo the 7A. If you wanna realistic power goals from a 7AG hybrid... around 180hp is more realistic and would still require a good deal of tuning. nothing to do with this topic, but the second generation Prius runs a maximum of 13:1 compression ratio and the prius does not use an otto cycle engine like everyone else does, it uses an atkinson cycle engine. QUOTE -------------------- |
Posts in this topic
i_wanna_go_fast 7AFE TO 7AGE Jan 26, 2009 - 4:12 AM
trdproven never heard that done before - this frankenstein. Jan 26, 2009 - 7:22 AM nik do a search on 7agte i have a full build
http://... Jan 26, 2009 - 11:26 AM i_wanna_go_fast i have been doing research all week. although i wo... Jan 26, 2009 - 12:31 PM
nik i just recommend that post cause its pretty much t... Jan 26, 2009 - 1:22 PM i_wanna_go_fast maybe a turbocharged slightly modified 7afe would ... Jan 26, 2009 - 7:03 PM GriffGirl I found a 20v head for sale near me yesterday and ... Jan 27, 2009 - 11:21 AM nik the biggest pain is getting the timing dailed in r... Jan 27, 2009 - 12:02 PM i_wanna_go_fast for now i think i will just keep researching my op... Jan 27, 2009 - 1:10 PM Akirad1 same here im deff gonna watch this topic. i was ei... Jan 27, 2009 - 1:49 PM nik here is a good 7age set up i looked at this in my ... Jan 27, 2009 - 4:27 PM Kwanza26 Some info first off...
Use 4AG pistons. They fit... Jan 28, 2009 - 12:45 AM nik nicely said how you been B
QUOTE (Kwanza26 ... Jan 28, 2009 - 11:42 AM i_wanna_go_fast thanks for the info nik. the turbo is probably a b... Jan 28, 2009 - 12:18 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
| Lo-Fi Version | Time is now: January 11th, 2026 - 7:58 AM |